LED long afterglow composite light-emitting strip lens and light-emitting device containing the LED long afterglow composite light-emitting strip lens structure

Abstract

The LED long afterglow composite light-emitting strip lens comprises a lens body structure (1) and a long afterglow light-emitting molding (2). The lens body structure (1) comprises a strip-shaped middle light-distributing optical main body part (11) and side surrounding parts (12) arranged on both sides thereof and connected with the outer side parts thereof. The middle part of the bottom of the middle light-distributing optical main body part (11) is recessed inward to form a strip-shaped receiving groove (1A). The lens body structure (1) is provided with receiving grooves (1B) or fitting structures according to the positions. The long afterglow light-emitting molding (2) is combined with the lens body structure (1) through the receiving grooves (1B) or fitting structures. The combined surface is provided with a transparent light-guiding medium (3) to form a light-guiding coupling surface (1e). The lens body structure (1) can be combined with LEDs to form various light-emitting devices. The lens body structure (1) can adjust the light energy distribution ratio, distribute the light of the emitted light field, and play an optical coupling role with the long afterglow light-emitting molding (2). While retaining the advantages of afterglow light, at least part of the emitted light of the LED light-emitting body can be emitted according to the light path design.

Description

Technical Field

[0001] The invention relates to the field of light-emitting optical devices and light-emitting equipment, and in particular to an LED long afterglow composite light-emitting strip lens and light-emitting equipment containing the LED long afterglow composite light-emitting strip lens structure. Background Art

[0002] Long afterglow luminescent material, also known as luminous material, is a photoluminescent material: when excited by a light source, it emits visible light and stores part of the light energy obtained. After the excitation stops, the energy is slowly released in the form of light. The brightness of the light is related to the performance of the luminescent material itself, as well as the thickness of the long afterglow luminescent layer and the concentration of the long afterglow luminescent powder therein. Due to the continuous development and progress of LED combined with long afterglow technology, the brightness of the light of long afterglow materials has been greatly improved. In recent years, it has gradually been paid attention to and applied to various lighting equipment fields. It has been welcomed by the market and consumers, forming industry and local standards, and has formed industrial development.

[0003] The existing photoelectric long afterglow luminous bodies are mainly divided into the following three categories:

[0004] One type uses a coating method to set a long afterglow luminescent material layer or cover a luminescent film on the surface of the luminescent body, represented by Patent No. 100467938C and CN 204328843 U. The long afterglow is excited by the electroluminescent body, and part of the light is emitted through the long afterglow. Due to the limitation of the manufacturing process, the thickness of the long afterglow luminescent material layer generally does not exceed 1mm, so the afterglow brightness is too low, and it is difficult to meet the practical requirements of long afterglow luminescence;

[0005] One type is to mix the long afterglow luminescent powder with the light-guiding medium and then make a long afterglow luminescent shell through extrusion, injection molding or molding process, represented by patent numbers CN 101776213 B, CN 205723621 U, CN 104170103A, and CN 206890416U. This method can make the long afterglow shell have a sufficient thickness. Although the long afterglow can be fully excited by the LED light-emitting device in the shell, the light transmittance of the LED light-emitting device in the long afterglow shell is low, so that its brightness decays too much, thereby greatly weakening or even completely losing its original luminous function, and because of the matching of the excitation curve, the luminous color of the original luminous body is greatly restricted, so that the diversity of the luminous color of the LED long afterglow luminous body is limited, and the luminous color is mixed with the afterglow luminescence, resulting in a shift in the luminous color, impure luminescence, color difference, and high production cost;

[0006] Another type is to directly mix the long afterglow luminescent powder with the light-guiding medium above the light-emitting device, such as the LED array light board, and then pour and solidify it, or to form a patch composite.

[0007] In summary, the long afterglow optoelectronic products of the prior art, the long afterglow materials combined with LEDs are basically arranged in a flat covering manner, mainly by liquid casting and leveling molding, and are mainly in a layered form. LEDs are arranged below or inside the long afterglow materials. Only SMD (surface mount) LEDs have a good luminous effect, and the luminous effects of LEDs in other packaging methods are not ideal. Some products also have a light-transmitting protective panel above the long afterglow luminous layer; the luminous effect of the arrangement in which the long afterglow material is in contact with the LED is the main one. When the LED emits light, part of the light energy excites the long afterglow, and part of the light energy that is not converted is scattered and emits light after passing through the long afterglow luminous layer. Therefore, the prior art products must have the following defects:

[0008] 1. The long afterglow luminous layer is mainly excited by transmission. At present, LEDs mainly include SMD (chip type), COB (integrated type), LAMP (direct plug-in type) or imitation lumen lamp beads. Their packaging methods, product shapes, sizes, specifications, luminous performance, welding methods, and usage focuses are different. Some LEDs already have one-time packaging transmission. In particular, the height (thickness) between the top of the LED luminous body and the circuit board layer is different. Therefore, the thickness of the long afterglow luminous layer above the LED and around the LED is uneven. Generally, the long afterglow luminous layer above the LED is not uniform. The thickness of the light layer is smaller than the thickness of the long afterglow light-emitting layer on the side of the LED, which may easily cause the thickness of the long afterglow light-emitting layer above the LED to be too thin, resulting in insufficient afterglow brightness, or the thickness of the long afterglow light-emitting layer on the side of the LED to be too thick, resulting in insufficient excitation of the long afterglow light-emitting layer, causing waste of light energy; and the long afterglow material of the existing LED long afterglow light-emitting body is difficult to be made into various three-dimensional shapes, and the three-dimensional light-emitting effect is not good, so that its light-emitting angle, especially the side light-emitting angle, is limited; in short, the LED light energy utilization rate is low, and the light-emitting effect and LED light distribution emission effect are poor.

[0009] 2. Since the long afterglow luminous layer is arranged above the LED luminous body, the LED light is absorbed and scattered by the long afterglow powder when it is emitted through the long afterglow layer, which will cause excessive loss of LED output light intensity and poor directivity (the output light loses its directionality), making it difficult to achieve the purpose of output designed according to the optical path [facilitating the realization of parameters such as luminous angle, beam angle or light intensity distribution, such as focusing or divergence or deflection (the main light beam is emitted at an acute angle to the main axis of the light emission) or polarization (sometimes called side light, the output light energy distribution on one side is greater than the output light energy distribution on the other side)], etc., especially in luminous equipment that needs to have fixed-point (area) projection for lighting purposes or directional (angle) projection for indication purposes. In addition, the existing products have a short luminous range and a short viewing distance, which is particularly not conducive to the requirements of long viewing distance for transportation, security, emergency and other purposes, and the scope of use is limited.

[0010] 3. The long afterglow luminous layer covers the top of the LED luminous body. The light emitted by the LED luminous body through the long afterglow luminous material is mixed with the long afterglow stimulated light, resulting in impure luminescent color and color shift. As a result, the long afterglow stimulated light has a great impact and interference on the luminescent spectrum such as the color quality or color temperature of the LED luminous device, affecting the luminescent spectrum of the original LED: when the white light LED for lighting purposes is used as the excitation light source, it seriously affects the quality of the white light spectrum. When other colors of excitation light sources are used, it will affect the luminescent color, resulting in its application range being limited.

[0011] In conclusion, the long afterglow luminescent products in the prior art have the above-mentioned fatal defects and some other shortcomings, which restrict their development and become a difficult problem that needs to be solved urgently in the industry. Summary of the invention

[0012] In view of the above problems, the technical problems to be solved by the present invention are:

[0013] The light energy ratio of the emitted light part of the LED luminous body and the excitation light part for stimulating long afterglow luminescence can be allocated according to the design requirements, and the light energy utilization rate is high. It can choose to focus on the advantages of the LED's own luminescence and take into account the long afterglow luminescence function, or it can choose to focus on the advantages of the long afterglow luminescence and take into account the LED's own luminescence function. The luminous effect (LED luminous effect and long afterglow luminous effect) and the light distribution emission effect are good. It has the dual functions of LED light distribution function and long afterglow luminescence, can solve the defects of the existing LED long afterglow luminous devices, can be applicable to various types and specifications of LEDs, and is easy to produce and manufacture and later install and use. It can serve as a LED long afterglow luminous lens structure of a general device to solve the problems that plague the development of the industry;

[0014] In particular, the output light field can be redistributed and adjusted, so that at least part of the main light beam emitted by the LED illuminator can be emitted according to the light path design [to facilitate the realization of parameters such as luminous angle, beam angle or light intensity distribution, such as focusing or divergence or deflection (the main light beam is emitted at an acute angle to the main axis of luminous emission), etc.], so that the output light can meet the needs of fixed-point (regional) projection or directional (angle) projection of the main light beam, and can also eliminate or partially eliminate the influence of dark areas caused by shading of long afterglow illuminators on lighting and projection by expanding the luminous angle of the output light (single-sided expansion angle or double-sided expansion angle, expanding the beam angle);

[0015] While retaining the afterglow of the long afterglow luminous body, the LED is made to emit in its original color (original luminous performance, luminous wavelength). It is more suitable for white light LEDs and dual-chip packaged LEDs or multi-chip packaged LEDs (two-color or multi-color luminescence) with different luminous wavelengths, reducing the light interference (chromaticity shift, etc.) caused by the long afterglow stimulated luminescence on the LED luminescence.

[0016] It can also bring many other advantages, such as the accommodating groove is in the shape of a strip, which is convenient for pouring and leveling the long afterglow mixed slurry and simple to make; it can achieve the afterglow brightening effect of superimposing the light on the adjacent parts of the long afterglow when the long afterglow is luminous (generally in the shape of a strip) and forming a luminous virtual strip of afterglow luminescence on the light incident surface or the light exiting surface, which has a brightening effect; a microstructure can be set on the lens to make the incident light outside the lens produce a reflective effect at a local angle on the light incident surface, the total reflection surface or the light exiting surface. When combined with a TIR lens, it can also produce a better reflective effect on the total reflection surface, and it also has a retroreflective function.

[0017] The volume of the LED long afterglow composite light-emitting strip lens can be large or small. A small one can serve as a composite light-emitting strip lens of a single strip LED, and a large one can serve as a lens of an integrated packaged LED or as a lamp shell or lamp surface of an LED light-emitting device. It can be used as an LED non-imaging lens that focuses on the purpose of secondary light distribution, and has long afterglow light emission, so that the lens has an afterglow light emission function. The LED long afterglow composite light-emitting strip lens can also be used as a long afterglow light emitter that focuses on the purpose of long afterglow light emission, and the long afterglow light emitter has the light distribution function of the lens. And after the light distribution design, it can be maximized. The directional emission and original luminous properties (conventional luminous properties such as luminous wavelength, chromaticity or color temperature) of the LED luminous device are maintained to the maximum extent, and the afterglow luminous function of high brightness can be provided. After the light distribution design, the afterglow luminous effect can be enhanced. After the light distribution design, the light field distribution of the emitted light can be used to achieve the design purpose and reduce the negative impact of the long afterglow luminous body on the original LED long afterglow luminous body when it is stimulated to emit light [the long afterglow luminous body shading (absorption and scattering) causes the light intensity to be weakened, resulting in the dark area of ​​light projection. The impact on lighting, projection, etc. can be eliminated or partially eliminated. The LED long afterglow composite luminous strip lens can achieve higher light energy utilization, better versatility, better luminous performance, higher integration and standardization, high convenience, wider applicability, and can meet various different lighting needs. It can be used in special luminous fields mainly for indicating luminescence or induced luminescence, and can be used in conventional luminous fields mainly for lighting.

[0018] The LED long afterglow composite light strip lens not only solves the defects of the existing long afterglow light-emitting equipment, but also increases the functions of the existing long afterglow light-emitting equipment. It can not only have the function of long afterglow light-emitting, but also play the functions of focusing, diverging, and deflecting to achieve light distribution. It can be used for fixed-point (regional) light projection or directional (angle) projection, improves its comprehensive light-emitting performance, has more application value in the field of security light-emitting, and expands its use and application field. It is particularly suitable for white light LED light sources and other color light sources, and can directly serve as a light-emitting lamp shell, or be placed in a transparent protective lamp shell (such as a tempered glass shell) or a metal bottom shell to serve as a light-emitting device.

[0019] The lens can be combined with an LED to make an LED or an LED luminous body with an afterglow luminous function, such as a strip light, a panel light, a modeling light, etc., and is more suitable for making an LED long afterglow luminous body with a three-dimensional luminous effect. It can serve as a local structure for various luminous devices or equipment, or be made into various general luminous optical standard devices and equipment; it can directly serve as a luminous lamp shell, or serve as an integrated luminous device or equipment, so that it can be used not only in the fields of transportation, fire protection, emergency, etc., such as being installed on vehicles and other means of transportation to play the role of displaying the body contour, but also being installed on transportation facilities, such as road surfaces, walls, and guardrails, to play the role of indicator lights or contour lights, and can be expanded to conventional luminous fields such as conventional white light illumination and multi-color luminous fields, thereby solving the difficulties of the prior art.

[0020] The principle of light distribution of this light is: according to the light-emitting performance of the LED light-emitting body (LED is generally a Lambertian body, such as Figure 3 As shown in FIG. 1 , a lens body is used as a supporting substrate for a long afterglow luminous body. The proportion of the plane angle interval occupied by the long afterglow luminous body on the cross section corresponds to the proportion of the solid angle of the LED. The volume or area proportion corresponding to the position where the long afterglow is located and the solid angle direction are set according to the solid angle of the LED. The proportion of the light energy of the outgoing light part of the LED luminous body and the excitation light part used to excite the long afterglow luminescence is allocated according to the design requirements. A typical LED long afterglow composite luminous strip lens (the length of the lens is much longer than the width of the LED) is taken as an example. Figure 4 As shown:

[0021] The total luminous flux of the LED light source (Lambertian body) is about

[0022]

[0023] Right now

[0024] The luminous flux of the LED luminous body (Lambertian body) used to stimulate long afterglow luminescence is about

[0025]

[0026] Right now Where θ is the angle at which the light-emitting direction deviates from the light-emitting axis, θ 1 / 2 is the half-value angle of the LED light source, φ is the angle of the lens bottom surface corresponding to the light-emitting direction (polar coordinates are established on the corresponding lens bottom surface with the light-emitting center as the origin), and I(θ) is the luminous intensity of the LED light source in the θ angle direction.

[0027] Therefore, the light energy ratio of the emitted light part of the LED luminous body (Lambertian body) and the excitation light part used to excite the long afterglow luminescence is

[0028] η=φ' / φ;

[0029] The lens body structure plays the role of an LED light energy distributor, that is, the light intensity of the LED at the solid angle position where the long afterglow is located is used to excite the long afterglow. When the long afterglow is stimulated to emit light, it is understood as a non-directional scattered light source. At this time, the long afterglow material is stimulated to emit light and the LED emits light in superposition, and the rest still follows the original directional light emission and light spectrum of the LED. The light energy distribution is completed on the LED lens to achieve the original light emission and the light energy distribution for exciting the long afterglow. The overall light energy utilization rate is high, the light effect (LED light effect and long afterglow light effect) and the light distribution emission effect are good, and it can meet the requirements of multi-color light emission (even the full visible light spectrum segment light emission);

[0030] And because the size of the LED is small and the size of the lens is large, the lens can be used to enlarge the light-emitting area of ​​the LED, or the light beam of the LED can be expanded to excite the corresponding long-afterglow light source of a larger area, thereby expanding the light-emitting surface, making the operation error smaller and easier to operate;

[0031] The lens can also act as a secondary light distribution for the LED output light field. Especially when combined with TIR, it can focus the LED output along the main axis of light emission, and also brighten the long afterglow light, further improving the light-emitting performance.

[0032] The design idea of ​​the present invention can be understood as follows: since the LED light-emitting body is a Lambertian body, the closer to the main axis of the light emission, the greater the light intensity, and the farther away from the main axis of the light emission, the smaller the light intensity; if emphasis is placed on the long afterglow light-emitting effect, the long afterglow light-emitting molding should be close to the solid angle position of the light-emitting axis of the LED, so that the long afterglow light-emitting body can be fully excited to increase the long afterglow light-emitting brightness, or / and increase the solid angle ratio or area ratio of the long afterglow light-emitting molding to increase the light-emitting area of ​​the long afterglow light-emitting molding; if emphasis is placed on the secondary light distribution emission effect of the LED, the long afterglow light-emitting molding should be far away from the solid angle position of the light-emitting axis of the LED, reduce the excitation light intensity of the long afterglow light-emitting body to appropriately reduce the long afterglow light brightness, or / and reduce the solid angle ratio or area ratio of the long afterglow light-emitting molding to appropriately reduce the light-emitting area of ​​the long afterglow light-emitting molding.

[0033] Furthermore, the present invention provides a strip-shaped positioning groove with an opening downward at the bottom or side of the light-transmitting body near the outer edge, and a strip-shaped long afterglow luminous body is combined therein. The light emitted by the LED luminous body can be totally reflected by the top surface or the side outer wall to excite the backlight surface (toward the observer) of the long afterglow luminous body, thereby solving the problem that when the long afterglow luminous body is thicker and the luminous intensity of the excitation light source is lower, the backlight surface is not easy to be fully excited and the brightness is low, so that the weak light excitation effect of the LED luminous body is good and the power of the LED luminous body can be saved at the same brightness; it can also achieve the afterglow brightening effect (generally in a strip shape) of superimposed luminescence in the area between adjacent luminous surfaces of the long afterglow luminous body during long afterglow luminescence, and the long afterglow luminous body will form a luminous contour after refraction and reflection on the surfaces of the lens body, and the long afterglow luminous effect is better.

[0034] The technical solution of the present invention is: an LED (but not limited to LED) long afterglow composite light-emitting strip (including straight strip, curved strip) lens (the lens in this article is a general lens, including a cylindrical lens, a non-cylindrical lens, a prism, or a combination of the above lenses, etc., which can be large or small. A small one can serve as a composite light-emitting strip lens of a single strip LED, and a large one can serve as a lens of an integrated packaged LED or as a lamp surface or lamp shell of an LED light-emitting device), such as Figure 1As shown, it comprises a lens body structure (1) (sometimes also called a lens shell), a long afterglow luminous molding (2) bonded to the lens body structure (1) by a transparent light-guiding medium (3) [including a transparent light-guiding glue, a light-transmitting resin (liquid or solid at room temperature) or other light-transmitting mixed medium] in a liquid state (preferably casting, sometimes also called dripping or dispensing, extrusion) or a molten state (preferably injection molding) (preferably bonding and solidifying, generally using liquid casting, extrusion or molding, molten injection molding or molding, preferably liquid casting or extrusion), wherein the lens body structure (1) comprises an excitation light for adjusting the LED output light and the long afterglow luminous molding (2). The invention relates to a transparent middle light distribution optical main body (11) which has the same cross-sectional shape and extends in a certain direction (a straight strip in the vertical direction and a non-straight strip in the non-vertical direction) into a strip shape, and a side surrounding part (12) which is respectively arranged on both sides of the middle light distribution optical main body (11) and connected with the outer side thereof (it can be formed as a whole at one time, or transparent components can be glued into a whole piece in stages) [the side surrounding part (12) is transparent or partially transparent or opaque, preferably transparent or partially transparent, mainly The bottom (bottom surface) of the intermediate light distribution optical main body (11) is provided with a receiving groove (1A) which is inwardly concave and opens downward and can accommodate a strip LED (sometimes also called a linear array LED or LED light strip) at the center or near the middle of the bottom (bottom surface) of the intermediate light distribution optical main body (11). The lens body structure (1) is provided with a receiving groove (1B) or a fitting structure for combining with a long afterglow luminous molding (2) according to the location; the long afterglow luminous molding (2) is a strip-shaped solidified molding obtained by mixing a long afterglow luminous powder with a liquid or molten light-transmitting mixed medium in a certain proportion and then solidifying (wherein the light-transmitting mixed medium and the transparent light-guiding medium (3) can be the same or different material), is combined with the side wall of the containing groove (1A) and the side surrounding part (12) through a containing groove (1B) or a fitting structure [generally located on both sides of the containing groove (1A)], or is combined with the side surrounding part (12), or is combined with the top of the containing groove (1A), wherein a transparent light-guiding medium (3) is provided on the combined surface of the lens body structure (1) and the long afterglow luminous molding (2), and the combined surface is a light-guiding coupling surface (1e) [at least part of the light of the strip-shaped LED excites the long afterglow luminous molding (2) through the light-guiding coupling surface (1e), and the long afterglow luminous molding (2) guides light outward through the light-guiding coupling surface (1e)];

[0035] The bottom (lower part) of the middle light distribution optical main body (11) with the receiving groove (1A) is the lighting part [i.e., the receiving groove (1A) is partially surrounded by the lighting part], and the bottom of the lighting part is provided with a lighting part bottom surface (1b) arranged on both sides of the receiving groove (1A) [playing the role of support, structural transition, limit or positioning (for fixing the strip LED or circuit board), auxiliary light guide, etc., generally a plane, on which a limit groove or bracket for accommodating the strip LED can be provided], and the upper part of the corresponding lighting part is the light output part; Figure 2 As shown, the inner wall (but not limited to the inner wall) of the receiving groove (1A) of the lighting portion is the light entrance surface (1a), the top surface of the light exit portion or / and the outer side surface of the side surrounding portion (12) connected to the light exit portion is the light exit surface (1f), and at least a portion of the light entrance surface (1a) and the light exit surface (1f) respectively form a light exit channel between the light entrance surface (1a) and the light exit surface (1f) so that part of the light beam emitted by the strip-shaped LED in or below the receiving groove (1A) is refracted or reflected in the lens body structure (1) through the light entrance surface (1a) and does not pass through the light-guiding coupling surface (1e), and is directly transmitted from the inside to the outside with the original light emission spectrum of the strip-shaped LED, and the part of the light emitted by the strip-shaped LED has a light distribution exit function such as focusing, diverging or deflecting in the vertical section along the extension direction of the receiving groove (1A) (the strip-shaped LED is directed outward). An optical structure (the corresponding parts of the two are not parallel planes) for achieving the purpose of fixed-point (regional) light projection or directional (angle) projection, wherein a light excitation channel is formed between the light incident surface (1a) and the long afterglow luminous molding (2) so that the light emitted by the strip-shaped LED is transmitted to the long afterglow luminous molding (2) through the light guide coupling surface (1e), and a light emitting channel is formed between the long afterglow luminous molding (2) and the light emitting surface (1f) so that the stimulated light of the long afterglow luminous molding (2) when the strip-shaped LED emits light is refracted or reflected from the light emitting surface (1f) to emit light outwardly, and a light emitting channel is formed between the long afterglow luminous molding (2) and the light emitting surface (1f) so that when the strip-shaped LED emits light, a part of the afterglow light is refracted or reflected from the light emitting surface (1f) to emit light outwardly after the strip-shaped LED is extinguished.

[0036] The LED long afterglow composite light-emitting strip lens can achieve light energy distribution through optical matching of the optical structure between the strip LED and the middle light distribution optical main body (11) to emit light from the strip LED in the receiving groove (1A) or below, so that part of the light is incident on the long afterglow light-emitting molding (2), and another part of the light maintains the original light emission spectrum (mainly referring to the light emission wavelength, chromaticity, or color temperature such as white light) of the strip LED and is emitted outward from the light emission surface (1f) along the light emission channel according to the light distribution design, and in particular, can form directional emission.

[0037] When the strip-shaped LED emits light, a portion of the light is emitted from the light-emitting surface (1f) along the light-emitting channel according to the light energy ratio, maintaining the original light-emitting spectrum of the strip-shaped LED according to the required light-emitting field distribution requirements; at the same time, another portion of the light is transmitted to the long-afterglow light-emitting molded body (2) on the inner wall of the accommodating groove (1B), so that the long-afterglow light-emitting molded body (2) is stimulated to emit light;

[0038] like Figure 5 As shown, after the strip-shaped LED is turned off, the long afterglow luminous molding (2) on the inner wall of the accommodating groove (1B) maintains afterglow luminescence in the form of brightness attenuation, and the light emitted by it is emitted outward from the light emitting surface (1f) through the light guide coupling surface (1e);

[0039] Thus, a strip long afterglow luminous molding (2) is formed in a local area, at least the optical main body (11) is a transparent body, and has strip LED light distribution and emission [after the light emitted by the strip LED passes through the lens light distribution (light energy distribution), part of the light maintains the original light emission spectrum of the strip LED and is emitted from the light exit surface (1f) through secondary light distribution (focusing or diverging or deflecting) along the light exit channel] and strip LED light distribution excitation long afterglow luminescence function [after the light emitted by the strip LED passes through the lens light distribution (light energy distribution), part of the light is incident on the long afterglow luminous molding (2), so that the long afterglow luminous molding (2) is stimulated to emit light, and when the strip LED is extinguished, the long afterglow luminous molding (2) emits light outward from the light exit surface (1f) through the light guide coupling surface (1e)], which generally acts as a lens lampshade or lamp shell. The lens has a three-dimensional luminescence effect (expanding the viewing angle) and has an afterglow brightening effect at a specific three-dimensional angle or in a local area.

[0040] Furthermore, a receiving groove (1B) which is inwardly concave, has a certain shape, can be used to combine with the strip-shaped long afterglow luminous molding (2), and is parallel to the receiving groove (1A) is provided between the middle light distribution optical main body (11) and the side surrounding part (12) [the part between the side wall of the receiving groove (1A) and the side surrounding part (12)], or a strip-shaped receiving groove (1B) which is inwardly concave, has a certain shape, can be used to combine with the strip-shaped long afterglow luminous molding (2), and is parallel to the receiving groove (1A) is provided at the top of the receiving groove (1A) [similar to a ditch (suitable for pouring or dripping liquid luminous slurry for leveling) or a groove];

[0041] The long afterglow luminous molding (2) is a strip-shaped solidified molding formed by directly pouring (sometimes also called dripping) a mixture of long afterglow luminous powder and a liquid light-transmitting mixed medium (such as transparent epoxy resin, transparent PU, transparent silicone, etc.) in proportion into a leveling and solidifying molded body in the receiving groove (1B) [characterized by a flow plane, where the liquid light-transmitting mixed medium acts as a transparent light-guiding medium (3), as a light-guiding medium for light energy transmission], and is combined on the inner wall of the receiving groove (1B) in a complementary shape to form both sides of the receiving groove (1A) or an overall structure of a strip-shaped long afterglow luminous molding (2) is provided on the top of the receiving groove (1A), and its casting contact surface is a light-guiding coupling surface (1e).

[0042] Furthermore, a fitting structure for combining the lens body structure (1) and / or the long afterglow luminous molding (2) is provided;

[0043] The long afterglow luminescent molded body (2) is a strip-shaped preform (which may be a three-dimensional structure, preferably injection molded) (serving as the outer part or the top) formed by mixing long afterglow luminescent powder and molten light-transmitting mixed medium in proportion and then solidifying through a mold. It is bonded and solidified to the lens body structure (1) in a corresponding position by a fitting manner and with the help of a transparent light-guiding medium (3) [at this time, the transparent light-guiding medium (3) mainly plays the role of light guiding or light coupling and bonding] to form an overall structure of a strip-shaped long afterglow luminescent molded body (2) on both sides of the accommodating groove (1A) or on the top of the accommodating groove (1A); a transparent light-guiding medium (3) (generally a transparent light-guiding medium (3) layer) is provided on the bonding surface of the fitting part where the fitting structure is located to form a light-guiding coupling surface (1e), and preferably a gap that can accommodate the transparent light-guiding medium (3) is provided at the fitting part or the contact surface, and a transparent light-guiding medium (3) is provided in the gap to form a light-guiding coupling surface (1e).

[0044] By matching the optical parameters of the lens and the strip LED, the stereo angle position (corresponding part) of the long afterglow luminous body (2) corresponding to the light intensity of the strip LED, the stereo angle ratio or the area ratio, etc., the light energy distribution can be adjusted, so that emphasis can be placed on both the long afterglow luminous purpose and the conventional luminous purpose. If emphasis is placed on the long afterglow luminous effect or for a low-power strip LED light source, the long afterglow luminous body (2) should be placed close to the stereo angle position of the luminous axis of the strip LED [because the light intensity at the part where the luminous axis of the strip LED is generally located is higher, which is more conducive to stimulating the long afterglow luminous body to emit light], or / and the stereo angle ratio or area ratio of the long afterglow luminous body (2) is increased; if emphasis is placed on the secondary light distribution emission effect of the strip LED or for a high-power strip LED light source, the long afterglow luminous body (2) should be placed away from the stereo angle position of the luminous axis of the strip LED, or / and the stereo angle ratio or area ratio of the long afterglow luminous body (2) is reduced.

[0045] Preferably, the proportion of the light energy of the emitted light of the strip LED is between 15% and 85% (the "between" in this article includes both ends), the total projection area of ​​the long afterglow luminous molding (2) in the vertical direction accounts for between 15% and 85% of the projection area of ​​the entire lens, or the area of ​​the light-guiding coupling surface (1e) accounts for between 15% and 100% of the outer surface area of ​​the lens body structure (1), or the area of ​​the combined surface between the long afterglow luminous molding (2) and the accommodating groove (1B) accounts for between 15% and 100% of the inner wall surface area of ​​the accommodating groove (1B), or the thickness of the long afterglow luminous molding (2) accounts for between 15% and 85% of the total lens height, or the vertical cumulative height of the long afterglow luminous molding (2) accounts for between 15% and 100% of the vertical depth of the accommodating groove (1B).

[0046] Furthermore, in the case of focusing on the long afterglow luminous effect, the total projection area of ​​the long afterglow luminous molding (2) in the vertical direction accounts for 50% to 85% of the projection area of ​​the entire lens, or the combined surface area of ​​the long afterglow luminous molding (2) and the accommodating groove (1B) accounts for 50% to 100% of the surface area of ​​the inner wall of the accommodating groove (1B), or the thickness of the long afterglow luminous molding (2) accounts for 50% to 85% of the height of the entire lens, or the long afterglow luminous molding (2) accounts for 50% to 85% of the height of the entire lens. The vertical cumulative height of the glowing light molding (2) accounts for 50% to 100% of the vertical depth of the accommodating groove (1B), or the line connecting any point in the spatial location of the accommodating groove (1B) and the center position for arranging the strip-shaped LED [generally located at the intersection of the angle between the central vertical axis of the accommodating groove (1A) (corresponding to the axis passing through the central axis of the accommodating groove and perpendicular to the bottom surface of the lens housing) and the surface where the bottom surface of the lighting portion (1b) is located at the bottom of the lighting portion] and the central vertical axis of the accommodating groove (1A). The angle between the longitudinal axis (corresponding to the axis passing through the central axis of the receiving groove and perpendicular to the bottom surface of the lens housing, generally corresponding to the LED light-emitting axis) is between 0° and 45°; when the secondary light distribution emission effect of the strip-shaped LED is emphasized, the total projection area of ​​the long afterglow light-emitting molding (2) in the vertical direction accounts for 15% to 50% of the total projection area of ​​the lens, or the combined surface area of ​​the long afterglow light-emitting molding (2) and the receiving groove (1B) accounts for 15% to 50% of the surface area of ​​the inner wall of the receiving groove (1B). % to 50%, or the thickness of the long afterglow luminous molding (2) accounts for 15% to 50% of the height of the entire lens, or the vertical height of the long afterglow luminous molding (2) accounts for 10% to 50% of the vertical cumulative depth of the accommodating groove (1B), or the angle between any point in the spatial location of the accommodating groove (1B) and the line connecting the center position for setting the strip LED and the central vertical axis of the accommodating groove (1A) is between 45° and 90°. The long afterglow luminous molding (2) is preferably arranged close to the deepest part of the accommodating groove (1B) and from deep to shallow.

[0047] Preferably, the long afterglow luminescent molding (2) is made of SrAl2O4 type long afterglow luminescent powder or Sr4Al 14 O 25A mixed solidified product of yellow-green or blue-green aluminate type long afterglow luminescent powder represented by a type long afterglow luminescent powder, or red or near-red long afterglow luminescent powder represented by a sulfide or nitride, and a liquid or molten light-transmitting mixed medium, or the long afterglow luminescent molded body (2) is a combination of two or more long afterglow luminescent bodies with different main excitation wavelengths or different main luminescent wavelengths, or the particle size of the long afterglow luminescent powder in the long afterglow luminescent molded body (2) is between 5μm and 200μm, or the mass concentration of the long afterglow luminescent powder in the long afterglow luminescent molded body (2) [the mass proportion of the long afterglow luminescent powder in the mixed solidified molded body with the transparent medium (2)] is between 25% and 60%, or the thickness of the long afterglow luminescent molded body (2) is between 1.5mm and 10mm.

[0048] Furthermore, the long afterglow luminescent molded body (2) is a molded body formed by pouring a liquid mixed slurry of the long afterglow luminescent powder and a liquid or molten light-transmitting mixed medium onto the inner wall of the accommodating groove (1B) and leveling and solidifying it.

[0049] Furthermore, a strip-shaped receiving groove is provided in the receiving groove (1A) in parallel with the receiving groove (1A) [which can be served by the top of the receiving groove (1A)], and a strip-shaped long afterglow luminous molding (2) is combined in the strip-shaped receiving groove through a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner; or a strip-shaped receiving groove (1B) is provided on the light-emitting portion, and a strip-shaped long afterglow luminous molding (2) is combined on the inner wall of the strip-shaped receiving groove (1B) through a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner.

[0050] Furthermore, the lens body structure (1) is provided with a strip-shaped receiving groove (1B) arranged in parallel with the receiving groove (1A), and the long afterglow luminous molding (2) is combined with the inner wall of the strip-shaped receiving groove (1B) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner to form a connected strip-shaped long afterglow luminous molding; or the lens body structure (1) is provided with a strip-shaped receiving groove (1B) arranged in parallel with the receiving groove (1A) and separated by a transparent body, and the long afterglow luminous molding (2) is combined with the inner wall of the strip-shaped receiving groove (1B) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner to form a segmented strip-shaped long afterglow luminous molding (2).

[0051] Furthermore, two or more parallel strip-shaped accommodating grooves (1B) are provided on the lens body structure (1), and the inner wall of each accommodating groove (1B) is combined with a strip-shaped long afterglow luminous molding (2) through a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner.

[0052] Furthermore, the accommodating groove (1B) is narrow at the top and wide at the bottom (thin at the top and thick at the bottom), so that the long afterglow luminous molding (2) has a large emission angle range or a large viewing angle range, and is convenient for production processes such as demoulding; or the side wall light incident surface (1a2) is a cylindrical surface or a circular cylindrical surface or a parabolic cylindrical surface or an elliptical cylindrical surface, which is convenient for production processes such as extrusion; or the cross-section of the top of the accommodating groove (1B) is U-shaped, V-shaped or W-shaped; or the cross-section of the light-guiding coupling surface (1e) is U-shaped, V-shaped or W-shaped, which is convenient for the strip LED light to be emitted, and is beneficial for the excitation and luminescence of the long afterglow luminous body.

[0053] Furthermore, the lens body structure (1) is a linear LED long afterglow composite light-emitting strip lens that is symmetrical along the vertical plane of the bottom surface passing through the central axis of the receiving groove (1A), the strip-shaped receiving groove (1B) is symmetrically arranged on the left and right sides of the receiving groove (1A), and the strip-shaped long afterglow light-emitting molding (2) is symmetrically combined with the inner walls of the strip-shaped receiving groove (1B) on both sides of the receiving groove (1A) through a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner.

[0054] Furthermore, the light incident surface (1a) is asymmetrical (generally asymmetrical), or the light emitting surface (1f) is asymmetrical, or the receiving groove (1A) is asymmetrical, or the receiving groove (1B) is asymmetrical, so that an optical structure having a polarization function [sometimes also called deflection, which can emit light at a higher intensity along a certain angle or a certain side or project light at a higher intensity to a certain local area] is formed between the light incident surface (1a) and the light emitting surface (1f), such as Fig.21 As shown, the strip-shaped receiving groove (1B) is not bilaterally symmetrical, or the strip-shaped receiving groove (1B) is arranged to one side (left or right), or the strip-shaped LED is arranged to one side (left or right); or the long afterglow luminous molding (2) on the inner wall of the receiving groove (1B) is an asymmetric body, such as the receiving groove (1B) is arranged asymmetrically, and the long afterglow luminous molding (2) is only combined on one side of the receiving groove (1A), and the long afterglow luminous molding (2) is not arranged on the other side, so that it can be designed as needed to meet the different emphasis requirements of vehicle drivers and pedestrians; or the optical main body (11) is an asymmetric structure, or the side surrounding part (12) is an asymmetric structure.

[0055] Furthermore, the light-emitting surface (1f) is an inclined surface with a certain inclination angle, or a free-form surface with a certain inclination angle and a central portion that is convex, or a plurality of inclined refractive surfaces are provided on the light-emitting surface (1f); at least a portion between the light-incoming surface (1a) and the light-emitting surface (1f) forms an optical structure that enables the main light beam emitted by the strip-shaped LED in the receiving groove (1A) to be emitted in an acute-angle direction with respect to the main light-emitting axis.

[0056] Preferably, the light emitting portion is an upwardly protruding strip-shaped light emitting portion, and a strip-shaped daylighting portion connected thereto is correspondingly provided below the upwardly protruding portion of the light emitting portion, and a strip-shaped receiving groove (1A) which is recessed upward and opens downward and is used to receive the strip-shaped LED is provided at the center of the bottom of the daylighting portion; the side surrounding portion (12) is turned upward, and a strip-shaped receiving groove (1B) which is open upward is formed between the outer side walls of the light emitting portion and the inner side walls of the side surrounding portion (12); the strip-shaped long afterglow luminous molding (2) is combined with the inner wall of the receiving groove (1B) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner.

[0057] Preferably, the lighting portion is a strip-shaped lighting portion protruding downward, and a strip-shaped receiving groove (1A) is provided at the center of its bottom, which is recessed upward and opened downward and is used to receive the strip-shaped LED, and its inner wall is a light incident surface, wherein the top wall forms a top wall light incident surface (1a1), and the side wall forms a side wall light incident surface (1a2) connected to the top wall light incident surface (1a1); the side surrounding portion (12) is turned downward, and a strip-shaped receiving groove (1B) open downward is formed between the outer side walls of the lighting portion and the inner side walls of the side surrounding portion (12); the strip-shaped long afterglow luminous molding (2) is combined with the inner wall of the receiving groove (1B) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner.

[0058] Preferably, the lens body structure (1) is made of transparent PC, acrylic, PMMA, PS, epoxy resin or glass with a refractive index n1 between 1.4 and 2.2, and the liquid or molten transparent light-guiding medium (3) is made of epoxy resin, silicone or PU with a refractive index n2 between 1.4 and 2.2.

[0059] Furthermore, the light-emitting portion, the light-collecting portion, and the side surrounding portion (12) of the lens body structure (1) are integrally formed or separately assembled or formed in stages [preferably by gluing together a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner (such as a light-guiding glue)]; or the light-emitting portion and the light-collecting portion of the lens body structure (1) are integrally formed, and are glued together with the side surrounding portion (12) connected to the transparent top cover by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner; or the light-emitting portion and the side surrounding portion (12) of the lens body structure (1) are integrally formed, and are glued together with the light-collecting portion by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner.

[0060] Furthermore, the bottom surface height of the side surrounding portion (12) is higher than the bottom surface height (1b) of the lighting portion at the bottom of the lighting portion, or the bottom surface height of the side surrounding portion (12) is lower than the bottom surface height (1b) of the lighting portion at the bottom of the lighting portion.

[0061] Furthermore, a transparent top cover or a transparent protective layer is provided on the top of the lens body structure (1).

[0062] Furthermore, a transparent protective layer is provided on or above the outer surface of the long afterglow luminescent molding (2); or a light diffusion layer, a light guide layer or a reflective layer is provided on the surface of the long afterglow luminescent molding (2).

[0063] Furthermore, the lens body structure (1) is also provided with a structural accessory (13), wherein the structural accessory (13) is a limiting support structure (131) connected to the lens body structure (1) and used for assembling the strip LED and the circuit board, or an outward-expanded bottom edge (132) connected to the side enclosure (12) (preferably its bottom) and used for installation and fixation, or a fastening structure (such as a screw hole, a nut, a socket or a plug, etc.) or a fitting structure (such as an undercut or an interference fit, etc.), or a waterproof sealing rubber ring structure (134) or a wire outlet groove (135), or a positioning component (such as a positioning pillar, a positioning step, etc.) or a fitting structure or a support member of the bottom surface (1b) of the lighting part at the bottom of the lighting part, or a fitting structure or a fixing structure of the edge of the light-emitting part. It plays the role of fitting (acting as an accessory, facilitating assembly or combination with other components), fixing (facilitating fixing with strip LEDs and circuit boards, or fixing with bases, such as screw holes or brackets, etc.), packaging [facilitating glue filling, etc., as a sealing ring, circuit board or wire waterproof structure] or installation (later as a component or equipment installation and fixation), etc., to form a lens module. The structural accessory (13) can be a non-transparent material, or even a metal part such as a cover ring, etc., and can be a secondary assembly part.

[0064] Preferably, plugs (4) (transparent or non-transparent. Especially when pouring long afterglow liquid resin, plugs are generally provided) are provided at both ends of the LED long afterglow composite light strip lens. The plugs (4) can be integrally formed with the lens body structure (1), such as integrally formed by injection molding; or they can be combined with the lens body structure (1) to form an integral structure, such as the lens body structure (1) is formed by extrusion or other molding processes, and then the plugs (4) are installed at both ends of the lens body structure (1) for a second time.

[0065] Furthermore, the LED long afterglow composite light-emitting strip lens comprises an intermediate light distribution optical main body (11) extending in a straight line in a vertical direction with the same cross-sectional shape, the bottom of the lighting portion of the intermediate light distribution optical main body (11) is provided with a straight-line receiving groove (1A) which is recessed inwards and opens downwards and can accommodate the strip LED, and its corresponding light entrance surface (1a) and light exit surface (1f) are cylindrical surfaces, and an optical structure having a secondary light distribution strip (columnar) lens function is formed between the two along the vertical cross-section of the extending direction of the receiving groove (1A), and the intermediate light distribution optical main body (11) is provided with a plurality of optical elements connected to the intermediate light distribution optical main body (11) on both sides. The side surrounding part (12) of the body is generally parallel to the extension direction of the receiving groove (1A), and a linear receiving groove (1B) is arranged in parallel with the linear receiving groove (1A) (arranged in parallel, preferably extruded, injected or molded) between the middle light distribution optical main body (11) and the side surrounding part (12). The long afterglow luminous molding (2) is combined with the inner wall of the linear receiving groove (1B) in a liquid solidification method or a molten solidification method through a transparent light-guiding medium (3) in whole or in sections to form a linear LED long afterglow composite luminous strip lens with a linear long afterglow luminous molding arranged in parallel with the linear receiving groove (1A). Extrusion (including co-extrusion and other molding methods) or injection molding (including secondary encapsulation injection molding and other molding methods) and other molding processes are preferred.

[0066] Furthermore, the LED long afterglow composite light-emitting strip lens comprises an intermediate light distribution optical main body (11) extending along its non-vertical direction (or with a certain angle deflection) in a curve or a broken line shape with the same cross-sectional shape and extending along the curve or broken line in a certain non-closed shape or closed shape (broken line or / and curve, head-to-tail intersection), the bottom of the lighting part of the intermediate light distribution optical main body (11) is provided with a curved or broken line accommodating groove (1A) that is concave inwards and opens downward and can accommodate the strip LED, and a vertical direction is formed between the corresponding light entrance surface (1a) and the light exit surface (1f) along the extension direction of the accommodating groove (1A). An optical structure with a straight cross section having the function of a secondary light distribution strip lens, wherein a middle light distribution optical main body (11) is provided with side surrounding parts (12) connected to the middle light distribution optical main body (11) on both sides, a curved or broken line receiving groove (1B) arranged in parallel with a receiving groove (1A) is provided between the middle light distribution optical main body (11) and the side surrounding parts (12), and a long afterglow luminous molding (2) is combined with the inner wall of the curved or broken line receiving groove (1B) in a liquid solidification mode or a molten solidification mode in whole or in sections through a transparent light-guiding medium (3) to form a curved or broken line LED long afterglow composite luminous strip lens. The injection molding process is preferably adopted.

[0067] Furthermore, the LED long afterglow composite light-emitting strip lens comprises a plurality of parallel arranged, strip-shaped intermediate light-distributing optical main body parts (11), wherein the receiving groove (1A) and the receiving groove (1B) are arranged in parallel with the intermediate light-distributing optical main body part (11), and the long afterglow light-emitting molding (2) is combined with the inner wall of the receiving groove (1B) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner to form a corresponding strip shape.

[0068] Furthermore, the light incident surface (1a) and the light exit surface (1f) form a cylindrical lens or a partial cylindrical lens, a non-cylindrical lens or a partial non-cylindrical lens, a total reflection lens or a partial total reflection lens, a prism or a partial prism, or an optical structure of two or more of the above combinations (for the convenience of description, collectively referred to as lenses).

[0069] Furthermore, the inner wall of the receiving groove (1A) of the lens body structure (1) is a light incident surface (1a); wherein the top wall of the receiving groove (1A) is a top wall light incident surface (1a1) (an upward light incident surface), and the side wall of the receiving groove (1A) is a side wall light incident surface (1a2) (a lateral light incident surface); the top wall light incident surface (1a1) and the side wall light incident surface (1a2) are connected as one.

[0070] Furthermore, the top surface of the light emitting portion of the lens body structure (1) or / and the outer side surface of the side surrounding portion (12) connected to the light emitting portion is a light emitting surface (1f); wherein the top surface of the light emitting portion is the top light emitting surface (1f1), the outer side surface of the side surrounding portion (12) is the side light emitting surface (1f2), and the top light emitting surface (1f1) and the side light emitting surface (1f2) are connected as a whole; or, wherein the top surface of the light emitting portion is the top light emitting surface (1f1), the outer side surface of the side surrounding portion (12) is the side light emitting surface (1f2), the top light emitting surface (1f1) and the side light emitting surface (1f2) are connected as a whole, and a transition surface (1f3) (generally a curve fitting surface, preferably a curved surface) is further provided between the top light emitting surface (1f1) and the side light emitting surface (1f2) to facilitate the light emitting effect and expand the light emitting angle.

[0071] Furthermore, an optical structure is formed between the light incident surface (1a) and the light emitting surface (1f), which is a convex lens or a partial convex lens or a convex lens-like structure that is thick in the middle and thin around the periphery or a convex lens-like structure that is partially thick in the middle and thin around the periphery, and which satisfies the function of focusing at least part of the light of the strip-shaped LED in the receiving groove (1A) along a vertical cross section in the extending direction of the receiving groove (1A) and emitting (directly emitting in the vertical direction), or a coated reflective layer having a light focusing function along a vertical cross section in the extending direction of the receiving groove (1A) is provided below the light collecting portion;

[0072] The lens can allow light emitted by a strip-shaped LED to enter from a light incident surface (1a) when the power is on, wherein a portion of the light maintains the original spectral characteristics after passing through the lens body and is focused and emitted along a vertical cross section in the extension direction of the receiving groove (1A), and a portion of the light can be directly emitted or transmitted through the lens body through a transparent light-guiding medium (3) in a liquid solidification mode or a molten solidification mode to a long afterglow luminous molding (2) and stimulate the long afterglow luminous molding (2) to emit light, and when the power is off, the light emitted by the long afterglow luminous molding (2) passes through the transparent light-guiding medium (3) in a liquid solidification mode or a molten solidification mode through a light-guiding coupling surface (1e) and emits light outward from a light emitting surface (1f), and can maintain high afterglow brightness.

[0073] Preferably, the middle parts of the light incident surface (1a) and the light output surface (1f) are respectively a plane and a convex focusing free-form surface, or are respectively a double convex focusing free-form surface, or the light output surface (1f) is provided with an upper convex focusing free-form surface, or the top wall light incident surface (1a1) is a lower convex focusing free-form surface.

[0074] Preferably, the lighting portion protrudes downward, and the bottom surface (1b) of the lighting portion at the bottom of the lighting portion extends outward and upward to form an outer side surface, and at least on the outer side surface close to the bottom surface (1b) of the lighting portion, a TIR total reflection surface (1c) is formed to meet the condition that part of the incident light emitted by the strip LED in or below the receiving groove (1A) is totally reflected (TIR) ​​toward the upper part or the upper side of the lens along the vertical section in the extension direction of the receiving groove (1A) [the incident angle of part of the light emitted by the strip LED on the outer side surface of the lighting portion close to the bottom surface (1b) of the lighting portion is greater than the critical angle, thereby causing total reflection]; thereby, it also has the vertical section focusing and reflecting function of external incident light along the extension direction of the receiving groove (1A) and the vertical section focusing and reflecting brightening function of the long afterglow luminous molding (2) along the extension direction of the receiving groove (1A), and the long afterglow luminous molding (2) also has a superimposed luminous effect in the vertical section along the extension direction of the receiving groove (1A).

[0075] Furthermore, an optical microstructure is provided on the TIR total reflection surface (1c), and the optical microstructure is a microstructure prism unit array or a microstructure lens unit array (such as a scale optical array structure or a pattern optical array structure or a compound eye optical array structure or a microprism reflective array structure).

[0076] Furthermore, a secondary or more TIR structure is provided on the TIR total reflection surface (1c); or a secondary or more TIR structure is provided on the TIR total reflection surface (1c), a strip-shaped placement groove (1B) is provided between two adjacent TIR structures, and a strip-shaped long afterglow luminous molding (2) is combined on the inner wall of the strip-shaped placement groove (1B) through a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner.

[0077] Furthermore, an optical structure is formed between the light incident surface (1a) and the light emitting surface (1f), which is a concave lens or a partially concave lens or a concave lens similar to a thin lens in the middle and thick lens around the periphery or a partially concave lens similar to a thin lens in the middle and thick lens around the periphery, and which satisfies the function of causing at least part of the light of the strip-shaped LED in the receiving groove (1A) to be emitted in a divergent manner (lateral emission) away from the main light-emitting axis along a vertical cross section in the extending direction of the receiving groove (1A).

[0078] The lens can allow light emitted by the strip-shaped LED to enter from the light incident surface (1a) when the power is on, wherein a portion of the light maintains the original spectral characteristics after passing through the lens body and is emitted along a vertical cross section in the extension direction of the receiving groove (1A) away from the main light-emitting axis, and a portion of the light is directly emitted or can be transmitted through a transparent light-guiding medium (3) in a liquid solidification mode or a molten solidification mode after passing through the lens body to the long afterglow light-emitting molding (2) and stimulate the long afterglow light-emitting molding (2) to emit light, and when the power is off, the light emitted by the long afterglow light-emitting molding (2) passes through the transparent light-guiding medium (3) in a liquid solidification mode or a molten solidification mode through the light-guiding coupling surface (1e) and emits light outward from the light emitting surface (1f), and maintains high afterglow brightness.

[0079] Furthermore, the middle parts of the light incident surface (1a) and the light emitting surface (1f) are respectively a plane and a concave divergent free-form surface, or are respectively a double concave divergent free-form surface, or the light emitting surface (1f) corresponding to the light incident surface (1a) above is a free-form surface with a concave center.

[0080] Furthermore, the curvature of the top wall light incident surface (1a1) is greater than the curvature of the side wall light incident surface (1a2), and the curvature of the top wall light incident surface (1a1) is greater than the curvature of the corresponding top light emitting surface (1f1); or the side wall cross section where the side light emitting surface (1f2) or the transition surface (1f3) is located is narrow at the top and wide at the bottom (similar to the refraction of a strip prism) to facilitate emission to both sides; or the top wall light incident surface (1a1) is convex downward, and the convex body has a scattering microstructure.

[0081] Furthermore, an optical structure is provided on the light-emitting surface (1f) to satisfy the condition that part of the light from the strip-shaped LED in the receiving groove (1A) satisfies the total reflection condition toward the interior or the lower side of the lens (one or more refractions or reflections may occur), so that part of the light can excite the long afterglow luminous molding to emit light through the respective joint surfaces (1e1, 1e2, 1e3 light-guiding coupling surfaces) between the long afterglow luminous molding (2) and the receiving groove (1B).

[0082] Preferably, the light-emitting portion is upwardly protruding, and a strip-shaped light-collecting portion connected to the light-emitting portion and parallel to the receiving groove (1A) is correspondingly provided below the upwardly protruding portion of the light-emitting portion; a receiving groove (1A) which is recessed upward and opens downward and is used to receive the strip-shaped LED is provided at the center of the bottom of the light-collecting portion; strip-shaped receiving grooves (1B) which are recessed upward and parallel to the receiving groove (1A) and open downward and are used to receive the strip-shaped long afterglow luminous molding (2) are provided on both sides of the bottom of the light-collecting portion; the strip-shaped long afterglow luminous molding (2) is combined with the inner wall of the receiving groove (1B) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner;

[0083] The curvature of the light incident surface (1a1) of the top wall is greater than the curvature of the light emitting surface (1f) of the corresponding light emitting portion, and an optical structure is formed between the light incident surface (1a) and the light emitting surface (1f) to enable at least part of the light of the strip-shaped LED to be emitted along a vertical cross section in the extension direction of the receiving groove (1A) away from the main light-emitting axis (to emit light laterally or in a horizontal direction);

[0084] The lens can allow light emitted by the strip-shaped LED to enter from the light incident surface (1a) when the power is on, wherein a portion of the light enters from the top wall light incident surface (1a1) and then maintains the original light emission spectrum and is emitted along a vertical cross section in the extension direction of the receiving groove (1A) away from the main light emission axis; a portion of the light is directly emitted or passes through the lens body and can be transmitted to the long afterglow light emitting molding (2) through a transparent light guiding medium (3) in a liquid solidification mode or a molten solidification mode and stimulate the long afterglow light emitting molding (2) to emit light; when the power is off, the light emitted by the long afterglow light emitting molding (2) passes through the transparent light guiding medium (3) in a liquid solidification mode or a molten solidification mode and passes through the light guiding coupling surface (1e) to emit light outward from the light emitting surface (1f), and can maintain high afterglow brightness.

[0085] Preferably, the light emitting portion is upwardly protruding, and a strip-shaped lighting portion connected to the light emitting portion and parallel to the receiving groove (1A) is correspondingly provided below the upwardly protruding portion of the light emitting portion, and a strip-shaped receiving groove (1A) is provided at the center of the bottom of the lighting portion, which is recessed upward and opened downward and is used to receive the strip-shaped LED, and the strip-shaped long afterglow light-emitting molding (2) is combined with the top wall of the receiving groove (1A) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner;

[0086] The curvature of the light incident surface (1a1) of the top wall is greater than the curvature of the light emitting surface (1f) of the corresponding light emitting portion, and an optical structure is formed between the light incident surface (1a) and the light emitting surface (1f) to enable at least part of the light of the strip-shaped LED to be emitted along a vertical cross section in the extension direction of the receiving groove (1A) away from the main axis of light emission (to emit light laterally or in a horizontal direction), and the thickness of the side wall of the lens body structure (1) is thin at the top and thick at the bottom;

[0087] The lens can allow light emitted by the strip-shaped LED to enter from the light incident surface (1a) when the power is on, wherein a portion of the light can maintain the original light emission spectrum after entering from the side wall light incident surface (1a2) and be emitted divergently away from the light emission main axis perpendicular to the vertical cross section of the extension direction of the receiving groove (1A), and a portion of the light can be directly emitted or transmitted through the lens body through the transparent light-guiding medium (3) in a liquid solidification mode or a molten solidification mode to the long afterglow light-emitting molded body (2) and stimulate the long afterglow light-emitting molded body (2) to emit light, and when the power is off, at least a portion of the light emitted by the long afterglow light-emitting molded body (2) can pass through the transparent light-guiding medium (3) in a liquid solidification mode or a molten solidification mode through the light-guiding coupling surface (1e) to emit light outward from the light emitting surface (1f), and can maintain high afterglow brightness.

[0088] Furthermore, an optical microstructure is provided on the light incident surface (1a) or the bottom surface (1b) of the light-collecting portion or the outer side surface or the light-emitting surface (1f) of the light-collecting portion. The optical microstructure is a microstructure prism unit array or a microstructure lens unit array [such as a scale optical array structure or a pattern optical array structure or a compound eye optical array structure or a microprism reflective array structure, so as to increase the effects of light diffusion, reflection, refraction, and light uniformity: 1. It has a light field distribution effect on the light emitted by the strip LED; 2. When the light is emitted with a long afterglow, a brightening effect of forming a light-emitting contour is formed on the light incident surface (1a), the bottom surface (1b) of the light-collecting portion or the light-emitting surface (1f); 3. Its field of view is expanded, so that the long afterglow The luminous visual effect is better, 4. It has a reflective effect on external incident light, and has a unique effect when used as a luminous sign]; or; or the light incident surface (1a) or the outer side surface of the light-collecting part or the light-emitting surface (1f) is provided with multiple cutting surfaces (similar to diamond cutting surfaces) or prism stripes to increase the refraction or reflection effect; or the lens body structure (1) is provided with a light diffusion microstructure or a light-homogenizing microstructure to prevent the strip LED from glaring or dazzling; or the lens body structure (1) is provided with a reflective layer on the bottom surface of the light-collecting part or the bottom surface of the outer part, preferably a coated reflective layer, to increase the effect of the long afterglow luminous body emitting light outward, thereby further brightening the light.

[0089] Furthermore, a micro-prismatic reflective structure is also provided on the outer side or outer periphery (external extension part, external expansion part) of the middle light distribution optical main body part (11), or a micro-prismatic reflective structure is also provided on the side or side periphery of the side surrounding part (12).

[0090] Preferably, the top light-emitting surface (1f1) of the light-emitting portion of the lens body structure (1) is a plane or a convex surface, the light-collecting portion is a downwardly protruding, upper-large and lower-small strip-shaped structure with a cross section in the shape of an inverted trapezoid or a strip-shaped structure similar to an inverted trapezoid, the top wall light-entering surface (1a1) is a plane or a convex surface or a concave surface, a light-collecting structure or a diverging structure with a vertical cross section along the extension direction of the receiving groove (1A) is formed between the light-entering surface (1a) and the corresponding light-emitting surface (1f), and a strip-shaped receiving groove parallel to the receiving groove (1A) is formed between the outer side surface of the light-collecting portion and the inner side surface of the side surrounding portion (12) (1B), a strip-shaped long afterglow luminous molding (2) is combined on the inner wall of the accommodating groove (1B) by means of a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner; the lens body structure (1) and the long afterglow luminous molding (2) are combined by means of a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner to form an LED long afterglow composite luminous strip lens that can make part of the light emitted by the strip-shaped LED be concentrated or divergently emitted along a vertical cross section in the extension direction of the accommodating groove (1A) according to the original spectrum and has an afterglow luminous function.

[0091] Preferably, Figure 2 As shown, the top surface of the light-emitting portion is a plane or a convex light-collecting free-form surface, the light-collecting portion is a strip-shaped structure that is convex downward, larger at the top and smaller at the bottom, and has a cross-section that is in the shape of an inverted trapezoid or a similar inverted trapezoid, the bottom surface (1b) of the light-collecting portion at the bottom of the light-collecting portion extends outward and upward to form an outer side surface of a convex free-form surface, and at least on the outer side surface close to the bottom surface (1b) of the light-collecting portion, a TIR total reflection surface (1c) that satisfies the condition that part of the incident light emitted by the strip-shaped LED in the receiving groove (1A) is totally reflected (TIR) ​​is formed, the top wall light-entry surface (1a1) is a convex light-collecting free-form surface, and forms a TIR total reflection surface (1c) along the receiving groove (1A) with the corresponding top light-emitting surface (1f1). A light-gathering structure having a vertical cross section in the extending direction of a nanogroove (1A), a strip-shaped receiving groove (1B) is provided between a lighting portion and a side surrounding portion (12), a strip-shaped long afterglow luminous molding (2) is combined on the inner wall of the receiving groove (1B) by means of a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner, the long afterglow luminous molding (2) being a molding formed by pouring a mixed slurry of long afterglow luminous powder and a liquid or molten light-transmitting mixed medium onto the inner wall of the receiving groove (1B) after the lens body structure (1) is turned over, and the long afterglow luminous molding (2) is leveled and solidified, and the height of the long afterglow luminous molding (2) is generally greater than its width.

[0092] The lens can allow light emitted by the strip-shaped LED to enter from the light incident surface (1a) when the power is on, wherein a portion of the light maintains the original light emission spectrum after passing through the lens body and is focused and emitted along a vertical cross section in the extension direction of the receiving groove (1A), and a portion of the light can be transmitted to the long afterglow light-emitting molding (2) through a transparent light-guiding medium (3) in a liquid solidification mode or a molten solidification mode after passing through the lens body and stimulate the long afterglow light-emitting molding (2) to emit light, and when the power is off, at least a portion of the light emitted by the long afterglow light-emitting molding (2) passes through the transparent light-guiding medium (3) in a liquid solidification mode or a molten solidification mode through the light-guiding coupling surface (1e) and emits light outward from the light emitting surface (1f), so that the light can maintain high afterglow brightness.

[0093] like Figure 6 , 7 As shown, the lens can be combined with a strip LED light-emitting element to form a light-emitting device.

[0094] like Figure 8 As shown, the lens units can be arranged in a certain pattern (such as parallel arrangement) to form a lens array, such as Fig. 9 As shown, it has the above-mentioned light splitting and light distribution functions, such as Fig.10 As shown, the lens array can be combined with LED light-emitting components to form a light-emitting device.

[0095] Preferably, Fig.11 As shown, the top of the light-emitting portion is raised as a whole, and the center of the top surface is concave, or the top surface of the light-emitting portion is a plane or a convex free-form surface with a small curvature. The light-collecting portion is a strip-shaped structure with a cross-section of an inverted trapezoid or a similar inverted trapezoid. The top wall light-entering surface (1a1) is a concave free-form surface with a large curvature, and a vertical cross-section along the extension direction of the accommodating groove (1A) is formed with the corresponding top light-emitting surface (1f1) to diverge away from the main axis of the light-emitting. A strip-shaped receiving groove (1B) is provided between the light-collecting portion and the side surrounding portion (12) [it can be set on both sides or on one side, such as Fig. 20 As shown, it can be designed as needed to meet the different requirements of vehicle drivers and pedestrians. The inner wall of the accommodating groove (1B) is combined with a strip-shaped long afterglow luminous molding (2) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner. The long afterglow luminous molding (2) is a molding formed by pouring a mixed slurry of long afterglow luminous powder and a liquid or molten light-transmitting mixed medium onto the inner wall of the accommodating groove (1B) after the lens body structure (1) is turned over and leveled and solidified. The width of the long afterglow luminous molding (2) is generally greater than its height.

[0096] like Fig.12As shown, the LED long afterglow composite light-emitting strip lens can make the light emitted by the strip LED incident from the top wall light incident surface (1a1) or the side wall light incident surface (1a2), wherein a part of the light maintains the original light emission spectrum after passing through the lens body and diverges away from the light emission axis along the vertical cross section of the extension direction of the receiving groove (1A) and emits laterally, and a part of the light can be transmitted to the long afterglow light-emitting molded body (2) through the transparent light-guiding medium (3) in a liquid solidification mode or a molten solidification mode after passing through the lens body and stimulate the long afterglow light-emitting molded body (2) to emit light, and when the power is off, at least a part of the light emitted by the long afterglow light-emitting molded body (2) passes through the transparent light-guiding medium (3) in a liquid solidification mode or a molten solidification mode through the light-guiding coupling surface (1e) and emits light outward from the light exiting surface (1f), so that the high afterglow brightness can be maintained.

[0097] like Fig.13 As shown, the lens can be combined with LED light-emitting components to form a light-emitting device.

[0098] Preferably, Fig.14 As shown, the top light-emitting surface (1f1) of the light-emitting portion of the lens body structure (1) is an outer convex arc surface with a smaller curvature, and the top wall light-entering surface (1a1) is an inner concave arc surface with a larger curvature, and a divergent structure is formed between the two. The side wall of the lens body structure (1) is thin at the top and thick at the bottom, and the bottom of the lighting portion can be provided with a groove or a reflective pattern. The top wall of the receiving groove (1A) is combined with a strip-shaped long afterglow luminous molded body (2) through a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner; the long afterglow luminous molded body (2) is a molded body formed by pouring a liquid mixed slurry of long afterglow luminous powder and a liquid or molten light-transmitting mixed medium into the receiving groove (1A) after the lens body structure (1) is turned over, and then leveling and solidifying;

[0099] like Fig.15 , 16 As shown, the LED long afterglow composite light-emitting strip lens can make a part of the light emitted by the strip LED incident from the side wall light-incoming surface (1a2), and after passing through the lens body, maintain the original spectrum and diverge away from the main light-emitting axis along the vertical section of the extension direction of the receiving groove (1A) (lateral or horizontal emission), and a part of the light is emitted upward into the long afterglow light-emitting molding (2) and stimulates the long afterglow light-emitting molding (2) to emit light, and when the power is off, at least a part of the light emitted by the long afterglow light-emitting molding (2) passes through the transparent light-guiding medium (3) in a liquid solidification mode or a molten solidification mode and passes through the light-guiding coupling surface (1e) to emit light from the light-emitting surface (1f) outward, so that the high afterglow brightness can be maintained. The lens can be combined with LED light-emitting components and the like to form a light-emitting device.

[0100] like Fig.17 As shown, the lens units can be arranged into a lens array module according to a certain rule, such as Fig.18 As shown, it has the above-mentioned light splitting and light distribution functions, such as Fig.19 As shown, the lens array can be combined with LED light-emitting components to form a light-emitting device.

[0101] Preferably, the light-emitting portion of the intermediate light-distributing optical main body (11) bulges upward, and a strip-shaped receiving groove (1A) capable of allowing light from a linear light source to enter is provided at the center of the bottom of the intermediate light-distributing optical main body (11), the top wall light-entering surface (1a1) of the strip-shaped receiving groove (1A) is flat, the top light-emitting surface (1f1) is flat, and a cross-section formed between the side wall light-entering surface (1a2) and the side light-emitting surface (1f2) or the transition surface (1f3) is narrow at the top and wide at the bottom (similar to the refraction of a strip prism), so as to facilitate lateral emission.

[0102] When the strip-shaped LED (5) emits light, the light is mainly divided into two paths. The first path directly irradiates the long afterglow luminous molding (2) at the top of the containing groove (1A), and the light emitted by the long afterglow luminous molding (2) is scattered and emitted from the light emitting surface (1f) after passing through the lens; the second path of light is incident on the side wall light incident surface (1a2), is refracted by the side wall, is displaced upward, and is emitted laterally (horizontally).

[0103] Further, if Figure 6 , 7 As shown, a strip-shaped LED (5) and its circuit board layer (6) and a packaging layer (7) are correspondingly arranged in the receiving groove (1A) of the LED long afterglow composite light-emitting strip lens or below the receiving groove (1A); the circuit board layer (6) is arranged at the bottom of the LED long afterglow composite light-emitting strip lens through a packaging glue or a fitting structure or a fastening structure and forms a sealed air layer with the inner wall of the LED long afterglow composite light-emitting strip lens; the strip-shaped LED (5) is arranged in the above-mentioned air layer without contacting the receiving groove (1A); the circuit board layer (6) is also connected to an external electrical connection line or a connection port (8); the packaging layer (7) is arranged below the circuit board layer (6) to package each component into one body to form a light-emitting body containing the LED lens structure; or a transparent light-guiding medium (3) layer is provided between the circuit board layer (6) and the inner wall of the LED long afterglow composite light-emitting strip lens; the strip-shaped LED (5) is fixed in the receiving groove (1A) by the transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner.

[0104] Furthermore, a reflective layer (preferably a coating layer) or a reflector (preferably a reflective cup or a reflective cup array) is also provided on the circuit board layer (6) to help improve the luminous effect of the strip LED and the luminous effect of the long afterglow luminous body.

[0105] Furthermore, a second light distribution LED is provided between the middle light distribution optical main body (11) and the side surrounding portion (12) of the LED long afterglow composite light-emitting strip lens [the strip LED (5) in or below the receiving groove (1A) that excites the long afterglow light-emitting molded body (2) to emit light can be called the first light distribution LED], which can play a role in brightening or achieving a multi-color light-emitting effect.

[0106] Furthermore, a receiving groove capable of accommodating a strip-shaped LED is provided below the long afterglow luminous molded body (2) on the inner wall of the receiving groove (1B), and a strip-shaped LED (5) is provided in the receiving groove.

[0107] Preferably, the strip LED (5) is a strip LED light source whose luminous spectrum has a wavelength range within the wavelength range of the excitation spectrum of the long afterglow luminous molding (2), or is a strip LED light source that crosses, overlaps or covers the wavelength range of the excitation spectrum of the long afterglow luminous molding (2), or is a strip LED light source that includes at least two or more light-emitting diodes and has two or more main luminous wavelengths, or is a visible light strip LED light source combined with a UV auxiliary light source corresponding to the excitation spectrum of the long afterglow luminous molding (2), or is a strip LED composed of multiple integrated packaged RGB LEDs, or is a strip LED composed of multiple integrated packaged RGBW LEDs, or is a strip LED composed of multiple integrated packaged RGB UV LEDs, or is a strip LED composed of multiple integrated packaged RG UV LEDs, or is a COB packaged two-color or multi-color strip LED light source.

[0108] Furthermore, the circuit board layer (6) is also connected to an external wire or electrode or control circuit; or a bottom bracket or bottom plate is also provided below the circuit board layer (6) for packaging, protection, heat dissipation, installation or fixing; or a bottom bracket or chassis or bracket is also provided below the circuit board layer (6) for packaging, protection, heat dissipation, installation or fixing. The LED lens can be directly packaged with the bottom bracket or chassis by secondary injection molding, or the bottom bracket or chassis or bracket can be fixed at the bottom of the packaged LED lens for installation and fixing.

[0109] Furthermore, the light emitting device containing the LED long afterglow composite light emitting strip lens structure is also provided with a retroreflective material or a retroreflective structure, wherein the retroreflective material is preferably a lattice retroreflective material, and the retroreflective structure is preferably a micro-prism retroreflective structure.

[0110] Furthermore, the strip-shaped LED (5) is controlled to emit light in a stroboscopic manner at a certain period and duty cycle and excite the long afterglow luminous molding (2) to emit light, and the light-emitting device containing the LED long afterglow composite luminous strip-shaped lens structure is a light-emitting device controlled in a stroboscopic light-emitting mode; or the strip-shaped LED (5) is two or more LEDs, which are controlled to emit light in a certain period and duty cycle and in a time sequence and excite the long afterglow luminous molding (2) to emit light, and the light-emitting device containing the LED long afterglow composite luminous strip-shaped lens structure is a light-emitting device controlled in a time sequence light-emitting mode; or the strip-shaped LED (5) is also connected to an energy storage element; or the strip-shaped LED (5) is also connected to a solar photovoltaic device, and the light-emitting device containing the LED long afterglow composite luminous strip-shaped lens structure is a light-emitting device powered by solar energy.

[0111] Lens body structure (1):

[0112] The material of the lens body structure (1) can be organic material or a combination of organic material and inorganic material as required, and can be fully transparent or partially transparent or partially transparent, preferably transparent PC, PMMA or transparent epoxy resin, and adopts extrusion, injection molding or compression molding and other molding processes, mainly playing the role of light transmission, light distribution, protection, support, coating, containment, fixation, circuit connection, installation, etc., and can allocate the light energy proportion of the output light part of the LED light-emitting body and the excitation light part for exciting long afterglow luminescence according to the design requirements, and has a secondary light distribution function for the output light field. Long afterglow luminous molding (2):

[0113] The long afterglow luminescent molded body (2) is a solidified product obtained by mixing a long afterglow luminescent powder with a liquid or molten light-transmitting mixed medium, and then curing by heating or reaction curing or by injection molding or molding. The long afterglow luminescent powder is an energy storage luminescent material, and preferably a rare earth-doped alkaline earth aluminate or silicate with good luminescent performance is selected. For example, Sr4Al 14 O 25 or yellow-green SrAl2O 4， Or a mixture of the two in a certain proportion.

[0114] The long afterglow luminescent molding (2) can be preformed and combined in the cavity of the lens body structure (1) by means of a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner; or the long afterglow luminescent powder can be mixed with a liquid or molten light-transmitting mixed medium and directly poured into the cavity of the lens body structure (1) for solidification.

[0115] Transparent light-guiding medium (3) and light-transmitting mixed medium:

[0116] The transparent light-guiding medium (3) mainly acts as a light-guiding medium or a bonding and curing agent, and is mainly a light-guiding adhesive, and can be used to bond and fix various materials or components, and play a role in guiding light, such as being used to bond the long afterglow luminous molding (2) to the lens body structure (1).

[0117] The light-transmitting mixed medium mainly acts as a solidifying and molding medium mixed with the luminescent powder. It is a transparent or light-transmitting organic medium or inorganic medium that can be in liquid or molten state under certain conditions, can be mixed with solid powder and can be solidified and molded under certain conditions [generally a mixture. Some are liquid at room temperature, and some are solid. The solid liquid or molten transparent light-guiding medium (3) can be converted into a liquid or molten state by heating or other methods. It is generally a liquid transparent adhesive, or a liquid or solid transparent resin, including a main material and its related additives (curing agent, accelerator, flux, dissolving liquid, stabilizer, dispersant, thickener, antioxidant, leveling agent, defoaming agent, etc.), wherein the main material of the organic medium is generally epoxy resin or silicone resin or polyurethane resin or PVC resin or PET resin or acrylic resin or fluorocarbon resin, etc., and the main material of the inorganic medium is generally glass or quartz, etc.].

[0118] The transparent light-guiding medium (3) and the light-transmitting mixed medium are sometimes the same material and can be used in place of each other, and sometimes they are different materials and cannot be used in place of each other. For example, when the long afterglow luminous molding body adopts a liquid casting process, the light-transmitting mixed medium acts as the transparent light-guiding medium (3), and the two are the same material, and when the long afterglow luminous molding body adopts an injection molding process, the light-transmitting mixed medium is a solidified molding medium mixed with luminescent powder, and the transparent light-guiding medium (3) can use a different transparent light-guiding glue, for example, the light-transmitting mixed medium is a transparent PMMA or PC material, and the transparent light-guiding medium (3) can use a transparent epoxy material, and the two are different materials.

[0119] Plug (4):

[0120] Sometimes it is also called end cap, sealing head, cover head, etc. It is combined at both ends of the LED long afterglow composite light-emitting strip lens through a fitting structure, a fastening structure or a packaging glue, and plays the role of packaging, waterproofing, and facilitating the pouring of liquid long afterglow mixed slurry. It can be provided with a threading hole to facilitate electrical connection with the outside world.

[0121] Strip LED(5):

[0122] The strip LED (5) is a linear array LED or LED light bar formed by a plurality of LEDs or LED units, and is a strip LED light source whose wavelength range of the luminous spectrum is within the wavelength range of the excitation spectrum of the long afterglow luminous molding (2), or is a strip LED light source whose wavelength range crosses, overlaps or covers the wavelength range of the excitation spectrum of the long afterglow luminous molding (2), or is a strip LED mixed light bar comprising at least two or more light-emitting diodes and having two or more main luminous wavelengths, or is a visible light strip LED light source combined with a UV auxiliary light source corresponding to the excitation spectrum of the long afterglow luminous molding (2), or is an integrated packaged RGB strip LED light source, RGBW strip LED light source, RGB UV strip LED light source or RG UV strip LED light source, or is a COB packaged two-color or multi-color strip LED light source, which can be a SMD LED or a direct-insert LED arranged in a linear array and soldered on a strip circuit board.

[0123] Circuit board layer (6):

[0124] The circuit board layer (6) may be a flexible or rigid circuit board, and may be connected to external wires or electrodes or control circuits.

[0125] At the simplest level, the circuit board layer (6) can act as the encapsulation layer (7).

[0126] The main advantages of the LED long afterglow composite light-emitting strip lens and the light-emitting device containing the LED long afterglow composite light-emitting strip lens structure of the present invention are:

[0127] 1. The light energy ratio of the emitted light part of the LED luminous body and the excitation light part used to excite the long afterglow luminescence can be allocated according to the design requirements, which can not only fully excite the long afterglow energy, but also avoid the oversaturation of the excitation light energy of the long afterglow luminous body as much as possible, and reduce unnecessary waste of light energy;

[0128] 2. It can perform secondary light distribution on the outgoing light field, which can make the strip LED emit in a directional manner according to the preset light distribution design, and make the long afterglow emit in a non-directional scattered manner according to the preset light distribution design. It can also reduce the negative impact of the long afterglow on the original strip LED light emission through the light field distribution of the outgoing light.

[0129] 3. It can maintain the original luminous properties of LED light-emitting devices to the maximum extent (conventional luminous properties such as luminous wavelength, chromaticity or color temperature), and can also have high-brightness afterglow luminous function and can emit multi-color light.

[0130] 4. Since the volume of LED is relatively small, there will be large errors in the distribution of light sources and the setting of long afterglow illuminants. This can easily lead to unreasonable distribution of light sources, resulting in waste of light energy and failure to achieve the original design purpose. If the long afterglow illuminant is set farther away from the LED illuminant, although the error can be reduced, the long afterglow illuminant cannot be fully excited because the illumination of the excitation light of the LED illuminant decreases with the distance, and the expected long afterglow luminous brightness effect cannot be achieved. The lens body of the present invention uses the long afterglow illuminant as a space carrier and a transmission carrier of the light path. The operation can be simplified and the matching error can be reduced by the proportion of the light path of the long afterglow illuminant on the lens body and the light output area. For example, precise control can be achieved by adjusting the height, width, depth, etc. of the long afterglow illuminant, and it can be well implemented with the help of simulation software such as Lighttools, Solidwork, TracePro, etc.

[0131] 5. The accommodating groove (1B) is in the shape of a strip, which is convenient for pouring and leveling the long afterglow mixed slurry and is simple to manufacture; since the lens and the long afterglow luminous body are integrated into one, the integration is higher and the performance is wider; it can be in the form of modular or standard parts, which can control the performance and quality of the product, reduce the production cost and the use cost, and facilitate the improvement of production efficiency, industrialization and industrialization, and promote the development of the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0132] Figure 1 It is a schematic diagram of the cross-sectional structure of an LED long afterglow composite light-emitting strip lens with a TIR total reflection focusing structure;

[0133] Figure 2 It is a light distribution diagram of an LED long afterglow composite light-emitting strip lens with a TIR total reflection focusing structure;

[0134] Figure 3 This is a schematic diagram of LED light energy distribution;

[0135] Figure 4 A schematic diagram of LED light energy distribution of an LED long afterglow composite light-emitting strip lens with a TIR total reflection focusing structure;

[0136] Figure 5 A schematic diagram of afterglow luminescence of an LED long afterglow composite luminous strip lens with a TIR total reflection focusing structure;

[0137] Figure 6 It is a schematic diagram of a cross-sectional three-dimensional structure of a light-emitting device having a TIR total reflection focusing structure and a LED long afterglow composite light-emitting strip lens combined with an LED;

[0138] Figure 7It is a schematic diagram of the cross-sectional structure of a light-emitting device of an LED long afterglow composite light-emitting strip lens with a TIR total reflection focusing structure and combined with an LED;

[0139] Figure 8 It is a schematic diagram of the cross-sectional structure of a multi-line array LED long afterglow composite light-emitting strip lens module with a TIR total reflection focusing structure;

[0140] Fig. 9 A schematic diagram of the light distribution of a multi-line array LED long afterglow composite light-emitting strip lens module with a TIR total reflection focusing structure;

[0141] Fig.10 It is a schematic diagram of the cross-sectional structure of a multi-line array LED long afterglow composite light-emitting strip lens module with a TIR total reflection focusing structure and a light-emitting device combined with an LED;

[0142] Fig.11 It is a schematic diagram of the cross-sectional structure of an LED long afterglow composite light-emitting strip lens with a divergent structure;

[0143] Fig.12 A schematic diagram of light distribution of a LED long afterglow composite light-emitting strip lens with a divergent structure;

[0144] Fig.13 It is a schematic diagram of the cross-sectional structure of a light-emitting device of a LED long afterglow composite light-emitting strip lens with a divergent structure and combined with an LED;

[0145] Fig.14 It is a schematic diagram of the cross-sectional structure of an LED long afterglow composite light-emitting strip lens with a divergent structure;

[0146] Fig.15 A schematic diagram of light distribution of a LED long afterglow composite light-emitting strip lens with a divergent structure;

[0147] Fig.16 A schematic diagram of afterglow luminescence of an LED long afterglow composite luminescent strip lens with a divergent structure;

[0148] Fig.17 It is a schematic diagram of the cross-sectional structure of a multi-line array LED long afterglow composite light-emitting strip lens module with a divergent structure;

[0149] Fig.18 A schematic diagram of light distribution of a multi-line array LED long afterglow composite light-emitting strip lens module with a divergent structure;

[0150] Fig.19 It is a schematic diagram of the cross-sectional structure of a light-emitting device of a multi-line array LED long afterglow composite light-emitting strip lens module with a divergent structure and combined with LED;

[0151] Fig. 20 It is a cross-sectional structure and light distribution diagram of an LED long afterglow composite light-emitting strip lens with a divergent structure;

[0152] Fig.21 It is a cross-sectional structure and light distribution diagram of an LED long afterglow composite light-emitting strip lens with a polarized structure;

[0153] Fig. 22 It is a schematic diagram of a cross-sectional three-dimensional structure of a light-emitting device of a LED long afterglow composite light-emitting strip lens with a focusing structure and combined with an LED according to the first embodiment;

[0154] Fig.23 This is a schematic diagram of the cross-sectional structure of an LED long afterglow composite light-emitting strip lens with a secondary TIR total reflection surface focusing structure according to Example 1;

[0155] Fig.24 This is a light distribution diagram of an LED long afterglow composite light-emitting strip lens with a secondary TIR total reflection surface focusing structure according to Example 1;

[0156] Fig.25 It is a schematic cross-sectional structure diagram of a light-emitting device of a LED long afterglow composite light-emitting strip lens with a secondary TIR total reflection surface focusing structure and combined with an LED according to the first embodiment;

[0157] Fig.26 This is a schematic diagram of the cross-sectional structure of a multi-line array LED long afterglow composite light-emitting strip lens module with a secondary TIR total reflection surface focusing structure according to Example 1;

[0158] Fig. 27 This is a light distribution diagram of a multi-line array LED long afterglow composite light-emitting strip lens module with a secondary TIR total reflection surface focusing structure according to Example 1;

[0159] Fig.28 It is a schematic cross-sectional structure diagram of a light-emitting device of a multi-line array LED long afterglow composite light-emitting strip lens module combined with an LED and having a secondary TIR total reflection surface focusing structure according to the first embodiment;

[0160] Fig.29 This is a schematic diagram of the cross-sectional structure of an LED long afterglow composite light-emitting strip lens with a divergent structure according to the second embodiment;

[0161] Fig.30 This is a light distribution diagram of an LED long afterglow composite light-emitting strip lens with a divergent structure according to Example 2;

[0162] Fig.31It is a schematic diagram of the cross-sectional structure of a light-emitting device of a second embodiment of a LED long afterglow composite light-emitting strip lens with a divergent structure and combined with an LED;

[0163] Fig.32 This is a schematic diagram of the cross-sectional structure of a multi-line array LED long afterglow composite light-emitting strip lens module with a divergent structure according to the second embodiment;

[0164] Fig.33 This is a light distribution diagram of a multi-line array LED long afterglow composite light-emitting strip lens module with a divergent structure according to the second embodiment;

[0165] Fig.34 It is a schematic cross-sectional structure diagram of a light-emitting device of a multi-line array LED long afterglow composite light-emitting strip lens with a divergent structure and combined with LEDs according to the second embodiment;

[0166] Fig.35 This is a schematic diagram of the cross-sectional structure of an LED long afterglow composite light-emitting strip lens with a TIR total reflection structure combined with a prism directional angle emission structure according to Example 3;

[0167] Fig.36 This is a light distribution diagram of an LED long afterglow composite light-emitting strip lens with a TIR total reflection structure combined with a prism directional angle emission structure according to Example 3;

[0168] Fig.37 It is a schematic cross-sectional structure diagram of a light-emitting device of a LED long afterglow composite light-emitting strip lens with a TIR total reflection structure combined with a prism directional angle emission structure and combined with an LED according to the third embodiment;

[0169] Fig.38 This is a three-dimensional perspective schematic diagram of a strip light with an LED long afterglow composite light-emitting strip lens structure with a focusing structure according to the fourth embodiment;

[0170] Fig.39 This is a schematic diagram of a top perspective structure of a strip light with an LED long afterglow composite light-emitting strip lens structure with a focusing structure according to the fourth embodiment;

[0171] Fig.40 This is a schematic diagram of a three-dimensional perspective structure of a strip light with an LED long afterglow composite light-emitting strip lens structure with a focusing structure according to the fourth embodiment;

[0172] Fig.41 This is a schematic diagram of the cross-sectional structure of a strip light with an LED long afterglow composite light-emitting strip lens structure with a focusing structure according to the fourth embodiment;

[0173] Fig.42This is a schematic diagram of a three-dimensional perspective structure of a strip light with a divergent structure LED long afterglow composite light-emitting strip lens structure according to the fourth embodiment;

[0174] Fig.43 This is a schematic diagram of the A1-A1 cross-sectional structure of a strip light with a divergent structure LED long afterglow composite light-emitting strip lens structure according to the fourth embodiment;

[0175] Fig.44 This is a schematic diagram of a three-dimensional perspective structure of a strip light with an LED long afterglow composite light-emitting strip lens structure with a polarization structure according to the fourth embodiment;

[0176] Fig.45 This is a schematic diagram of the A2-A2 cross-sectional structure of a strip light with an LED long afterglow composite light-emitting strip lens structure with a polarization structure according to the fourth embodiment;

[0177] Fig.46 This is a schematic diagram of a three-dimensional perspective structure of a strip light with an LED long afterglow composite light-emitting strip lens structure with a polarization structure according to the fourth embodiment;

[0178] Fig.47 This is a schematic diagram of the A3-A3 cross-sectional structure of a strip light with an LED long afterglow composite light-emitting strip lens structure with a polarization structure according to the fourth embodiment;

[0179] Fig.48 This is a schematic diagram of the upward-looking structure of a lens of a shaped light-emitting lamp with an LED long afterglow composite light-emitting strip lens structure with a focusing structure according to the fifth embodiment;

[0180] Fig.49 This is a schematic diagram of a top perspective structure of a shaped light-emitting lamp with a LED long afterglow composite light-emitting strip lens structure with a focusing structure according to the fifth embodiment;

[0181] Fig.50 This is a schematic diagram of the A4-A4 cross-sectional structure of a shaped light-emitting lamp with an LED long afterglow composite light-emitting strip lens structure with a focusing structure according to the fifth embodiment;

[0182] Fig.51 This is a schematic diagram of the upward-looking structure of a lens of a shaped light-emitting lamp with a divergent structure LED long afterglow composite light-emitting strip lens structure according to the fifth embodiment;

[0183] Fig.52 This is a top perspective structural schematic diagram of a shaped light-emitting lamp with a divergent structure LED long afterglow composite light-emitting strip lens structure according to the fifth embodiment;

[0184] Fig.53This is a schematic diagram of the A5-A5 cross-sectional structure of a shaped light-emitting lamp with a divergent structure LED long afterglow composite light-emitting strip lens structure according to the fifth embodiment;

[0185] Fig.54 This is a top perspective structural schematic diagram of a shaped light-emitting lamp with a divergent structure LED long afterglow composite light-emitting strip lens structure according to the fifth embodiment;

[0186] Fig.55 This is a schematic diagram of a top-down perspective structure of a signboard with a multi-line array LED long afterglow composite light-emitting strip lens structure with a divergent structure according to Example 6;

[0187] Fig.56 This is a schematic diagram of the main perspective structure of a signboard with a divergent multi-line array LED long afterglow composite light-emitting strip lens structure according to Example 6.

[0188] Fig.57 This is a schematic diagram of a three-dimensional perspective structure of a signboard with an LED long afterglow composite light-emitting strip lens structure with a focusing structure according to Example 6;

[0189] Fig.58 This is a schematic diagram of the top perspective structure of a signboard with an LED long afterglow composite luminous strip lens structure with a focusing structure according to Example 6. DETAILED DESCRIPTION

[0190] Based on the spirit of the present invention and in combination with actual needs, a variety of implementation schemes can be formed in various shapes and structures or through combination or arrangement. The embodiments of this article only cite LED long afterglow composite light-emitting strip lenses and lens modules whose emitted light can be concentrated, divergent or polarized, or lamp housings or devices containing the lens structure and lens module structure, and typical cases of light-emitting equipment using the above-mentioned lens structure or lamp housing combined with strip LEDs, but are not limited to the embodiments of this article. The embodiments of the present invention are described below in conjunction with the drawings.

[0191] Embodiment 1

[0192] Embodiment 1 of the present invention proposes an LED long afterglow composite light-emitting strip lens with a focusing structure, such as Fig. 22As shown, the lens body structure (110) comprises a central optical main body part which is a strip-shaped structure with a cross-section gradually increasing in size from bottom to top, a receiving groove (110A) capable of allowing the strip-shaped light source to enter is provided at the center of the bottom of the central optical main body part, the inner wall of the receiving groove (110A) is a parabolic cylinder, and two sides of the lens body structure (110) are provided with downwardly turned transparent surrounding edges which are connected to the middle light distribution optical main body part (1110) and are arranged in parallel with the middle light distribution optical main body part (1110) to serve as The side surrounding part (1120) is provided with a receiving groove (110B) (which can be set on both sides or one side) along the extension direction of the receiving groove (110A) between the middle light distribution optical main body part (1110) and the side surrounding part (1120). The long afterglow luminescent molded body (120) is formed by turning over the lens body structure (110), and the long afterglow luminescent powder (generally alkaline earth aluminate long afterglow luminescent powder doped with rare earth, such as SrAl2O4 long afterglow luminescent powder emitting yellow-green light or Sr4Al 14 O 25 A liquid mixed slurry of a long afterglow luminescent powder (such as a light-conducting medium) and a light-guiding medium (such as a transparent epoxy resin) is poured into the receiving groove (110B) for leveling and curing. The outer surface of the long afterglow luminescent molding (120) can also be poured and leveled to form a transparent protective layer. The top surface light-emitting surface (110f1) of the lens body structure (110) is generally designed to be a plane. The top surface light-emitting surface (110f1) can also be designed to be a convex arc surface according to the needs of special light concentration. An optical structure is formed between the light-entering surface (110a) and the light-emitting surface (110f1) to enable at least part of the light of the strip-shaped LED in the receiving groove (110A) to be concentrated and emitted along a vertical cross section in the extension direction of the receiving groove (110A);

[0193] The lens can make the light emitted by the strip-shaped LED in the receiving groove (110A) enter from the light incident surface (110a) when the power is on, and part of the light can be emitted from the top light emitting surface (110f1) after passing through the lens body, so that when the strip-shaped LED in the receiving groove (110A) emits light, part of the light can maintain the original spectral characteristics and be concentrated and emitted along the vertical cross section of the extending direction of the receiving groove (110A), and part of the light can be directly emitted or transmitted through the lens body through the liquid or molten transparent light-conducting medium (130) to the long afterglow luminous molding (120) and stimulate the long afterglow luminous molding (120) to emit light, and when the power is off, part of the light emitted by the long afterglow luminous molding (120) in the receiving groove (110B) can be emitted from the light emitting surface (110f), and the strip afterglow brightening effect inside the lens body can be achieved by superimposed light emission;

[0194] Alternatively, after the lens body structure (110) is turned over, a liquid mixed slurry of the long afterglow luminescent powder and the light-guiding medium can be poured onto the inner wall (generally the top wall) of the receiving groove (110A) to a certain depth [so that part of the space of the receiving groove (110A) is left for arranging the strip-shaped LED] and then leveled and cured to form the formed slurry.

[0195] Furthermore, the lens body structure (110) can be a strip-shaped hard lamp shell (hard light strip, generally corresponding to the LED light strip below) extruded from PC or PMA, or a strip-shaped soft lamp shell (soft light strip, generally corresponding to the LED light strip below) extruded from transparent silicone, PU, ​​or PVC, or a lamp shell injection-molded from acrylic or PC.

[0196] The transparent medium of the long afterglow luminescent molding can be selected as needed according to the material of the lens body: if the material of the lens body is flexible, the transparent medium of the long afterglow luminescent molding can be selected so that the long afterglow luminescent molding after curing is also flexible (bendable or foldable), which is conducive to the production of various flexible light-emitting equipment; the transparent medium of the long afterglow luminescent molding can also be selected so that the long afterglow luminescent molding after curing is rigid.

[0197] Preferably, the light incident surface (110a), the bottom surface of the light-collecting portion (110b) of the light-exiting portion, and the light-exiting surface (110f) are provided with optical microstructures, and the optical microstructures are microstructure prism unit arrays or microstructure lens unit arrays (scale optical array structures or pattern optical array structures or compound eye optical array structures or microprism reflective array structures). In this case, the lens body structure (110) is generally formed by injection molding.

[0198] Preferably, the lens body structure (110) is further provided with a structural attachment (1130), wherein the structural attachment (1130) is a limiting support structure (1131) connected to the lens body structure (110) for assembling the strip LED and the circuit board, or an outwardly expanded bottom edge or chassis (1132) connected to the side enclosure (1120) (preferably the bottom) for installation and fixation, or a fastening structure (screw hole, nut, socket or plug) or a fitting structure (undercut or interference fit, etc.) or a waterproof sealing rubber ring structure or a wire outlet groove, or a positioning component (such as a positioning pillar, a positioning step, etc.) or a fitting structure at the bottom of the light-collecting part, or a fitting structure or a fixed structure at the edge of the light-emitting part. It plays the role of fitting (acting as an accessory to facilitate assembly or combination with other components), fixing (facilitating fixation with strip LEDs and circuit boards, or fixing with bases, screw holes or brackets, etc.), packaging [a waterproof structure that facilitates glue filling, sealing rings, waterproofing (circuit boards or wires) and other functions) or installation (later installed and fixed as components or equipment) to form a lens module.

[0199] The circuit board (160) of the strip-shaped LED (150) is fixed to the bottom of the LED long-afterglow composite light-emitting strip-shaped lens via a positioning structure, and a gap between the circuit board (160) and the LED long-afterglow composite light-emitting strip-shaped lens is sealed with a packaging adhesive. The strip-shaped LED (150) is fixed in the air layer of the receiving groove (110A), and then the bottom is sealed with a packaging adhesive to form a light-emitting module.

[0200] Preferably, the strip-shaped LED (150) can be LEDs of different types or specifications, such as a strip-shaped light source formed by 5050 SMD LEDs, or a strip-shaped light source formed by F5 / F8 straw hat lamp beads or imitation lumen lamp beads connected in series or in parallel, or a COB packaged LED strip-shaped light source; the luminous color of the LED can be selected as required, and can be white, so as to effectively stimulate long afterglow luminescence and have high luminous brightness, or a combination of red and blue can be selected, wherein the red light is emitted after being focused by a lens and mainly has a warning effect, while the blue light is mainly used to stimulate long afterglow luminescence.

[0201] Furthermore, the strip LED (150) may be a strip LED composed of a plurality of integrated packaged RGB LEDs, or a strip LED composed of a plurality of integrated packaged RGBW LEDs, or a strip LED composed of a plurality of integrated packaged RGB UV LEDs, or a strip LED composed of a plurality of integrated packaged RG UV LEDs, or a COB packaged bi-color or multi-color strip LED, which can meet the requirements of multi-color light emission.

[0202] Preferably, the middle light distribution optical main body (1110) of the LED long afterglow composite light-emitting strip lens extends in a straight strip shape; or the middle light distribution optical main body (1110) of the LED long afterglow composite light-emitting strip lens extends in a curved strip shape and closes in a ring shape. In this case, 1. the central part surrounded by the middle light distribution optical main body (1110) can be hollow to save materials; 2. a retroreflector can also be provided on the surface of the central part surrounded by the middle light distribution optical main body (1110); 3. a continuous top surface can also be formed on the top surface of the central part surrounded by the middle light distribution optical main body (1110); A light-transmitting plate of the body, under which LEDs of different luminous colors are arranged, so as to realize a combined luminous function; 4. A control circuit or a battery assembly can also be arranged in the inner cavity of the central part surrounded by the middle light-distributing optical main body (1110), and connected to form a circuit with wires, so as to control the strip-shaped LED (150) to emit light in a certain pattern (such as flashing light with a certain period and duty cycle or dynamic light in a time sequence); 5. A light-transmitting plate can also be made into a connected body on the top surface of the central part surrounded by the middle light-distributing optical main body (1110), and a solar photovoltaic device can be arranged under it, so as to have a luminous function powered by solar energy.

[0203] Optimal solution: an LED long afterglow composite light-emitting strip lens with a secondary TIR total reflection surface focusing structure

[0204] like Fig.23 As shown, the outer wall of the lighting portion surrounding the accommodating groove (110A) is provided with secondary TIR total reflection surfaces (110C1) and (110C2) in sequence from the inside to the outside, a first strip groove (110B1) is provided between the first TIR total reflection surface (110C1) and the second TIR total reflection surface (110C2), both sides of the strip central optical main body are downwardly turned transparent surrounding edges as side surrounding parts (110b), a second strip groove (110B2) is provided between the outer wall of the lighting portion and the inner wall of the transparent surrounding edge, and the long afterglow luminescent molded body (120) is formed by turning over the lens body structure (110), and long afterglow luminescent powder (generally rare earth-doped alkaline earth aluminate long afterglow luminescent powder, such as SrAl2O4 long afterglow luminescent powder emitting yellow-green light or Sr4Al 14 O 25 A liquid mixed slurry of a long afterglow luminescent powder (such as a light-guiding medium (130)) (such as a transparent epoxy resin) is poured into the first accommodating groove (110B1) and the second accommodating groove (110B2) respectively for leveling and curing to form a first long afterglow luminescent molding (121) and a second long afterglow luminescent molding (122), and the upper part of the lens body structure (110) is integrally formed.

[0205] Furthermore, the first long afterglow luminescent molded body (121) and the second long afterglow luminescent molded body (122) can emit light in a single color or in a combination of two colors.

[0206] Preferably, a downward convex sun-skinning arc surface is provided on the top inner wall of the containing groove (110A).

[0207] Preferably, the first-stage TIR total reflection surface (110C1) is a spline curve extended arc surface or a cylindrical surface formed by the common extension of multiple tangent arcs.

[0208] When the lens is used in LED lighting equipment, Fig.25 As shown, the strip-shaped LED (150) is arranged at the lower end of the receiving groove (110A), preferably a linear array LED light source, fixed to the bottom of the LED long afterglow composite light-emitting strip lens through a positioning structure, and the gap between it and the LED long afterglow composite light-emitting strip lens is sealed with a packaging glue, and then the bottom is sealed with a packaging glue; as shown Fig.24As shown, the light of the strip-shaped LED (150) is mainly divided into five paths: the first path of light directly irradiates the lower part of the inner side wall of the receiving groove (110A), irradiates the first-level TIR total reflection surface (110C1) after being refracted by the inner side wall of the receiving groove (110A), and is emitted from the light exit surface (110f) of the lens after being reflected by the first-level TIR total reflection surface (110C1); the second path of light directly irradiates the upper part of the inner top side wall of the receiving groove (110A), and irradiates the lens after being refracted. The light emitting surface (110f) is formed by a light emitting device, and then a part of the light passes through the light emitting surface (110f) and is emitted upward, and a part of the light is reflected to the light coupling surface located above and adjacent to the second-level TIR total reflection surface (110C2), and is transmitted to the long afterglow luminous molding (122) in the accommodating groove (110B2) through the liquid or molten transparent light-guiding medium (130) and stimulates the long afterglow luminous molding (122) to emit light, and a part of the light is reflected to the second-level TIR total reflection surface (110C2) ), after being reflected by the second-stage TIR total reflection surface (110C2), it passes through the light-emitting surface (110f) and is emitted upward; the third light path is directly irradiated on the textured arc surface at the top of the receiving groove (110A), and after being refracted by the textured arc surface, it is directly emitted from the light-emitting surface (110f) of the lens body; the fourth light path is also directly irradiated on the textured arc surface at the top of the receiving groove (110A), and then reflected to the upper part of the inner side wall of the receiving groove (110A), and then along a path similar to that of the second light path The fifth path of light is directly irradiated on the middle part of the inner side wall of the receiving groove (110A), and after being refracted by the inner side wall of the receiving groove (110A), it is irradiated on the light coupling surface located above and adjacent to the first-level TIR total reflection surface (110C1), and is transmitted through the liquid or molten transparent light-guiding medium (130) to the long afterglow luminous molded body (121) in the receiving groove (110B1) and stimulates the long afterglow luminous molded body (121) to emit light. The reflectivity of the grained arc surface treated with graining is increased, which can increase the amount of the fourth path of light, thereby increasing the brightness of the light emitted at the edge of the lens light-emitting surface, avoiding the light from being concentrated in the center of the aperture, and is conducive to improving the quality of lighting. Benefiting from the multi-level reflection structure used to realize the second path of light and the fourth path of light in the present invention, the lens in the present invention can be made very thin when the diameter of the lens light-emitting surface (110f) remains unchanged, thereby reducing the weight of the lens.

[0209] like Fig.26 As shown, the lens units can be arranged into a lens array module according to a certain rule (such as multiple parallel straight strips), such as Fig. 27 As shown, it has the above-mentioned light splitting and light distribution functions, such as Fig.28 As shown, the lens array can be combined with LED light-emitting components to form a light-emitting device.

[0210] The LED long afterglow composite light-emitting strip lens with a focusing structure of the present invention has the strip LED focusing function and the long afterglow light-emitting function, and can meet the emphasis required for actual light emission by selectively allocating the light energy ratio of the excitation light and the output light; it can serve as a light distribution component or a light distribution assembly or a light-emitting component or a light-emitting assembly for making various strip light-emitting equipment, and can also be combined with other optical components or light-emitting components as a local structure to design and make various light-emitting devices, components or equipment, such as LED light strips, text or letter or symbol light-emitting modules, multi-functional lamps, light-emitting signboards, outline lights or outline marks, ground lamps, etc., which have both conventional lighting uses and the long afterglow light-emitting function, and have a wider range of applications.

[0211] Embodiment 2

[0212] Embodiment 2 of the present invention provides a LED long afterglow composite light-emitting strip lens with a divergent structure, such as Fig.29 As shown, it includes a lens body structure (210), the edge of the lens body structure (210) has an upturned transparent border serving as a side surrounding portion (2120), the cross-section of the central optical main body (2110) is in the shape of a raised arch, and a receiving groove (210A) capable of allowing light from a strip light source to enter is arranged at the center of the bottom of the central optical main body (2110), the top wall light incident surface (210a1) of the receiving groove (210A) is in the shape of an upward concave arc surface, and the curvature of the top wall light incident surface (210a1) is greater than the curvature of the corresponding portion of the light emitting surface (210f), and an accommodating groove (210B) parallel to the accommodating groove (210A) is arranged between the middle light distribution optical main body (2110) and the side surrounding portion (2120), and the long afterglow luminescent molding (220) is formed by pouring a liquid mixed slurry of long afterglow luminescent powder and a light-guiding medium into the accommodating groove (210B) for leveling and curing. The outer surface of the long afterglow luminous molding (220) may also be cast and leveled with a transparent protective layer (230).

[0213] Furthermore, the radial cross-section of the receiving groove (210A) is circular, and the diameter of the cross-section in the direction from the bottom surface to the top surface gradually decreases until it shrinks to the top end to form the vertex of the receiving groove (210A), and the side wall light entrance surface (210a2), the top wall light entrance surface (210a1) and the light exit surface (210f) cooperate with each other to adjust the light exit angle.

[0214] Preferably, the bottom surface (210b) of the lighting portion is provided with a reflective or diffusing structure.

[0215] When the present invention is used in LED lighting equipment, Fig.31As shown, the strip-shaped LED (250) is arranged at the lower end of the receiving groove (210A), preferably a linear array LED light source, fixed to the bottom of the LED long afterglow composite light-emitting strip lens through a positioning structure, and the gap between it and the LED long afterglow composite light-emitting strip lens is sealed with a packaging glue, and then the bottom is sealed with a packaging glue; the light of the strip-shaped LED (250) is mainly divided into three paths, such as Fig.30 As shown in the figure: the first path of light directly irradiates the lower part of the inner wall of the receiving groove (210A), irradiates the light coupling surface (210e1) after being refracted by the inner wall of the receiving groove (210A), and is transmitted to the long afterglow luminous molded body (220) in the receiving groove (210B) through the liquid or molten transparent light-guiding medium (230) and stimulates the long afterglow luminous molded body (220) to emit light; the second path of light directly irradiates the light incident surface (210a1) of the top wall of the receiving groove (210A), and is directly emitted from the light emitting surface (210f) of the lens body; the third path of light directly irradiates the inner wall of the receiving groove (210A); The upper part is refracted by the inner wall of the receiving groove (210A) and irradiated onto the light-emitting surface (210f) of the lens, and then part of the light passes through the light-emitting surface (210f) and is emitted upward, and part of the light is reflected to the bottom surface (210b) of the lighting portion, and after being reflected by the bottom surface (210b) of the lighting portion, part of the light is irradiated onto the optical coupling surface (210e1), and is transmitted through the liquid or molten transparent light-guiding medium (230) to the long afterglow luminous molding (220) in the receiving groove (210B) and stimulates the long afterglow luminous molding (220) to emit light, and part of the light passes through the light-emitting surface (210f) and is emitted upward.

[0216] like Fig.32 As shown, the lens units can be arranged in a certain pattern (such as multiple parallel straight strips) to form a lens array module, such as Fig.33 As shown, it has the above-mentioned light splitting and light distribution functions, such as Fig.34 As shown, the lens array can be combined with LED light-emitting components to form a light-emitting device.

[0217] The LED long afterglow composite light-emitting strip lens with a divergent structure of the present invention has a strip LED divergence function and a long afterglow light-emitting function, and can meet the emphasis required for actual light emission by selectively allocating the light energy ratio of the excitation light and the output light; it can serve as a light distribution component or a light distribution assembly or a light-emitting component or a light-emitting assembly for making various strip light-emitting equipment, and can also be combined with other optical components or light-emitting components as a local structure to design and make various light-emitting devices, components or equipment, such as LED light strips, text or letter or symbol light-emitting modules, multi-functional lamps, light-emitting signboards, outline lights or outline marks, ground lamps, etc., which have both conventional lighting uses and a long afterglow light-emitting function, and have a wider range of applications.

[0218] Embodiment 3

[0219] Embodiment 3 of the present invention provides an LED long afterglow composite light-emitting strip lens with a TIR total reflection structure combined with a prism directional angle emission structure, such as Fig.35 As shown, the lens body structure (310) comprises a strip-shaped lens body structure (310), wherein the lens body structure (310) is a strip-shaped structure with a transparent surrounding edge, wherein the size of the central optical main body gradually increases from bottom to top, and a receiving groove (310A) capable of allowing the strip-shaped light source to enter is arranged at the center of the bottom of the central optical main body, and transparent surrounding edges (310A) connected to the middle light distribution optical main body (3110) and arranged in parallel with the middle light distribution optical main body (3110) are arranged on both sides of the lens body structure (310) and turned down to serve as side surrounding parts (3110). 20), an accommodating groove (310B) (which can be set on both sides or one side) is provided between the middle light distribution optical main body (3110) and the side surrounding part (3120) along the extension direction of the accommodating groove (310A), and the long afterglow luminous molding (320) is formed by pouring a liquid mixed slurry of long afterglow luminous powder and light-guiding medium into the accommodating groove (310B) after turning over the lens body structure (310), and leveling and curing, and the outer surface of the long afterglow luminous molding (320) can also be cast and leveled with a transparent protective layer. The upper part of the lens body structure (310) is integrally formed, and a plurality of mutually parallel and inclined strips are provided on its light emitting surface (310f), and polarized light emission is achieved by providing the inclined strips.

[0220] Preferably, the angle between the plane where the stripes are located and the horizontal plane is 10° to 80°. In other words, the stripes are not parallel to the horizontal plane, but are at an acute angle. This inclined structure can achieve focused polarized light emission. Different angles result in different polarization angles, and the required angle can be set according to actual needs.

[0221] Adjacent stripes are connected by a connecting surface, and the angle between the connecting surface and the plane where the stripes are located is 10° to 80°. Because the stripes are inclined and the adjacent stripes do not share edges with each other, a connecting surface is needed to connect the adjacent stripes. The angle between the connecting surface and the plane where the stripes are located is an acute angle because if it is an obtuse angle, there will be a blank area without stripes in the top view, which is not conducive to improving the utilization rate of light.

[0222] In the vertical direction, the ends of the stripes in the length direction have the same height, that is, the stripes are not inclined from one end in the length direction to the other end, but from one end in the width direction to the other end.

[0223] Each stripe is provided with a plurality of mutually parallel arc-shaped arches, which are long strips, and the curvature of the cross section is 0.45 to 1.20.

[0224] The connecting surface is a smooth plane to simplify the processing procedure and reduce the processing cost.

[0225] Preferably, the top inner wall of the containing groove (310A) is flat, and a total reflection surface (310c) is provided on the outer side wall of the lighting portion surrounding the containing groove (310A).

[0226] In summary, the present invention can achieve polarization at a larger angle by setting a plurality of mutually parallel inclined strips on the light-emitting surface (310f), thereby improving the utilization rate of light and making it possible for LED light-emitting equipment to achieve a good light distribution effect without adding an elevation angle, thus simplifying the structure and reducing costs.

[0227] When the present invention is used in LED lighting equipment, Fig.37 As shown, the strip-shaped LED (350) is arranged at the lower end of the receiving groove (310A), preferably a linear array LED light source, fixed to the bottom of the LED long afterglow composite light-emitting strip lens through a positioning structure, and the gap between it and the LED long afterglow composite light-emitting strip lens is sealed with a packaging glue, and then the bottom is sealed with a packaging glue; the light of the strip-shaped LED (350) is mainly divided into three paths, such as Fig.36 As shown in the figure, the first path of light is directly irradiated on the lower part of the inner wall of the receiving groove (310A), irradiated on the total reflection surface (310c) after being refracted by the inner wall of the receiving groove (310A), and after being reflected by the total reflection surface (310c), it is polarized and emitted from the light emitting surface (310f) of the lens; the second path of light is directly irradiated on the light incident surface (310a1) of the top wall of the receiving groove (310A), and after passing through the lens, it is polarized and emitted from the light emitting surface (310f). The third path of light directly irradiates the upper part of the inner wall of the receiving groove (310A), and after being refracted by the inner wall of the receiving groove (310A), irradiates the light coupling surface (310e1) located above and adjacent to the total reflection surface (310c), and is transmitted through the liquid or molten transparent light-guiding medium (330) to the long afterglow luminous molding (320) in the receiving groove (310B) and excites the long afterglow luminous molding (320) to emit light.

[0228] The LED long afterglow composite light-emitting strip lens with a TIR total reflection structure combined with a prism directional angle emission structure of the present invention has the functions of strip LED focusing and polarization, and long afterglow light-emitting function, and can meet the emphasis required for actual light emission by selectively allocating the light energy ratio of the excitation light and the emission light; it can serve as a light distribution component or a light distribution assembly or a light-emitting component or a light-emitting assembly for making various strip-shaped light-emitting equipment, and can also be used as a local structure in combination with other optical components or light-emitting components for designing and making various light-emitting devices, components or equipment, such as LED light strips, text or letter or symbol light-emitting modules, multi-functional lamps, light-emitting signboards, outline lights or outline marks, floor lamps, etc., which have both conventional lighting uses and long afterglow light-emitting function, and have a wider range of applications.

[0229] Embodiment 4

[0230] Embodiment 4 of the present invention provides a strip light with an LED long afterglow composite light-emitting strip lens structure, wherein the lens structure is a strip hard lamp shell (hard light strip, generally corresponding to the LED light strip below) extruded from PC or PMA, or a strip soft lamp shell (soft light strip, generally corresponding to the LED light strip below) extruded from transparent silicone, PU, ​​or PVC, or an acrylic or PC injection-molded lamp shell, wherein the middle light distribution optical main body is a single strip extending in a straight line, and the bottom of the middle light distribution optical main body is provided with a linear receiving groove that is concave inward and opens downward and is provided with a strip LED, and its outer The cross section of the side wall is parabolic and acts as a total reflection surface. Its corresponding light incident surface is a downward convex arc surface, and the light emitting surface is a plane. An optical structure with a focusing lens function is formed between the light incident surface and the light emitting surface. Both sides of the middle light distribution optical main body are provided with surrounding edges connected to the middle light distribution optical main body and parallel to the extension direction of the receiving groove to serve as side surrounding parts. A linear receiving groove arranged in parallel with the receiving groove is provided between the middle light distribution optical main body and the side surrounding parts. After the long afterglow luminous molding (420) and the light guiding medium (430) are mixed, they are reversely poured into the linear receiving groove and leveled and solidified to form a linear long afterglow luminous molding.

[0231] When making strip lights, Fig.38 As shown in FIG. 41 , the strip-shaped LED (450) adopts a linear array LED light source, and the linear array LED is fixed to the bottom of the LED long afterglow composite light-emitting strip lens by a positioning buckle, and the gap between the linear array LED and the LED long afterglow composite light-emitting strip lens is sealed with a packaging glue, and then sealed with plugs (440) at both ends, and sealed with a packaging glue at the bottom.

[0232] The light of the strip-shaped LED (450) is mainly divided into three paths: the first path of light directly irradiates the lower part of the inner side wall of the receiving groove, irradiates the total reflection surface after being refracted by the inner side wall of the receiving groove, and is emitted from the light emitting surface of the lens after being reflected by the total reflection surface; the second path of light directly irradiates the light incident surface of the top wall, and is emitted from the light emitting surface of the lens body after being focused by the lens; the third path of light directly irradiates the upper part of the inner side wall of the receiving groove, irradiates the light coupling surface located above the total reflection surface and adjacent to the light coupling surface after being refracted by the inner side wall of the receiving groove, and is transmitted to the long afterglow light-emitting molded body (420) in the receiving groove through the liquid or molten transparent light-guiding medium (430) and stimulates the long afterglow light-emitting molded body (420) to emit light. The height of the top of the strip-shaped LED (450) from the top wall of the receiving groove can be adjusted as needed to achieve the desired light-emitting effect.

[0233] The lens structure of the second or third embodiment can also be used to manufacture a strip light with a divergent or deflecting structure. Fig.42 , 43 As shown, a strip light with a divergent structure of LED long afterglow composite luminous strip lens structure, wherein the LED long afterglow composite luminous strip lens is a strip hard lamp shell (hard light strip, generally corresponding to the LED light strip below) extruded from PC or PMA, or a strip soft lamp shell (soft light strip, generally corresponding to the LED light strip below) extruded from transparent silicone, PU, ​​PVC, or a lamp shell injection-molded from acrylic or PC, wherein the intermediate light distribution optical main body is a single strip extending in a straight line, the light emitting portion protrudes upward, and a light collecting portion connected to the light emitting portion and extending in a strip along the receiving groove is correspondingly provided below the protruding portion of the light emitting portion, and a receiving groove that is concave upward and opens downward and is used to receive the strip LED is provided at the center of the bottom of the light collecting portion, and the long afterglow luminous molding (420) is mixed with the light-guiding medium (430) and then poured into the receiving groove to a suitable depth and leveled and cured to form a strip long afterglow luminous molding;

[0234] The curvature of the light incident surface of the top wall is greater than the curvature of the light emitting surface of the corresponding light emitting portion, and an optical structure is formed between the light incident surface and the light emitting surface to allow at least part of the light of the strip-shaped LED to be divergent and emitted, and the thickness of the side wall of the lens body structure (410) is thin at the top and thick at the bottom;

[0235] When the strip-shaped LED is powered on, the emitted light is incident from the light incident surface, and part of the light is incident from the side wall light incident surface and can be emitted from the light emitting surface, so that when the strip-shaped LED emits light, part of the light can maintain the original light emission spectrum and diverge perpendicularly to the extension direction of the receiving groove and emit laterally, and part of the light can be directly emitted or transmitted through the lens body through the liquid or molten transparent light-guiding medium (430) to the long afterglow light-emitting molded body (420) and stimulate the long afterglow light-emitting molded body (420) to emit light. When the power is turned off, at least part of the light emitted by the long afterglow light-emitting molded body (420) passes through the liquid or molten transparent light-guiding medium (430) and the light-guiding coupling surface to emit light outward from the light emitting surface, so that the long afterglow light-emitting molded body (420) can maintain high afterglow brightness.

[0236] The middle light distribution optical main body of the LED long afterglow composite light-emitting strip lens can also be a single strip-shaped extending straight line, the top light-emitting surface of the light-emitting part is raised as a whole, and the center of the top is relatively concave inward, and the bottom center of the lighting part is provided with an upwardly concave, downwardly opening accommodating groove for accommodating the strip-shaped LED, and the light-entering surface of the top wall is an inwardly concave arc surface, and a divergent structure is formed between the corresponding light-emitting surface, and both sides of the central optical main body have downward-turned transparent surrounding edges serving as side surrounding parts, and a accommodating groove is provided between the lighting part and the side surrounding parts, which can be set on both sides or on one side, such as Figures 44-47 As shown, it can be designed as needed to meet the different emphasis requirements of vehicle drivers and pedestrians.

[0237] When making a strip light, the strip LED (450) adopts a linear array LED light source, fixes the linear array LED to the bottom of the LED long afterglow composite light-emitting strip lens through a positioning buckle, and seals the gap between the linear array LED and the LED long afterglow composite light-emitting strip lens with a sealing glue; finally, seals the bottom with a sealing glue, such as Fig.46 or seal with plugs (440) at both ends, such as Fig.44 As shown, finally, the bottom is sealed with packaging glue.

[0238] The strip light can also be fixed in a metal shell (such as an aluminum alloy shell) with a strip cavity, and a light-transmitting tempered glass (for light transmission and protection) is arranged on its light-emitting surface (generally the top surface) to make a strip light with a metal shell.

[0239] Furthermore, the circuit board can be connected to external wires or electrodes, or connected to a control circuit, and the strip LED (450) can be preset to flash with a certain period and duty cycle, or each LED can be illuminated in a certain period and duty cycle in a time sequence. A heat sink is also provided below the circuit board layer, and when the strip light is fixed in the metal shell, the metal shell acts as a heat sink.

[0240] The strip light has both the conventional strip LED emission function and the long afterglow emission function. It can selectively allocate the proportion of light energy of the excitation light and the emission light to meet the focus required for actual lighting. It can be used as a linear strip light, as a traffic, fire, emergency sign, etc., and can also be used as a landscape decorative light.

[0241] Embodiment 5

[0242] The fifth embodiment of the present invention provides a shaped light-emitting lamp with an LED long afterglow composite light-emitting strip lens structure, wherein the lamp housing is a lamp panel housing formed by injection molding of a transparent epoxy resin, wherein the intermediate light distribution optical main body can adopt the lens structure with a focusing function of the first embodiment as required, and is a strip (curve or broken line) extending and connecting end to end to form a ring, such as a circular ring, a square ring or a polygonal ring (such as a hexagonal ring, see Fig.48 —50), the bottom of the middle light distribution optical main body is provided with a strip receiving groove which is inwardly concave and downwardly opened and is used to set the strip LED, the cross section of the outer wall of which is parabolic and acts as a total reflection surface, the corresponding light incident surface is a downward convex arc surface, and the light emitting surface is a plane, and an optical structure with a focusing lens function is formed between the light incident surface and the light emitting surface, and the two sides of the middle light distribution optical main body are provided with a surrounding edge which is connected to the middle light distribution optical main body and parallel to the extension direction of the receiving groove and acts as a side surrounding portion, and an annular receiving groove which is arranged in parallel with the receiving groove is provided between the middle light distribution optical main body and the side surrounding portion (one side such as the outer side, or both sides), and the long afterglow luminous molding (520) is mixed with the light guiding medium (530) and then poured into the strip receiving groove in reverse and leveled and solidified to form an annular long afterglow luminous molding;

[0243] When manufacturing a modeling light-emitting lamp, the strip-shaped LED (550) adopts a ring-shaped LED light source (a strip-shaped LED light source can be wound into a ring, or multiple strip-shaped or strip-shaped LED light sources can be spliced ​​end to end into a ring), the ring-shaped LED light source is fixed to the bottom of the lamp housing lens structure by a positioning buckle, and the gap between the ring-shaped LED light source and the lamp housing lens structure is sealed with a sealing glue, and the bottom is sealed with a sealing glue.

[0244] The lens structure with divergence function of the second embodiment can also be used, and extended in strips (curves or broken lines) and connected end to end to form various closed rings, so as to make Fig.51 —The circular ring-shaped light-emitting lamp shown in FIG53; or the lens structure with polarizing function of Example 3.

[0245] The central part surrounded by the middle light distribution optical main body can be hollow to save materials; a retroreflector can also be arranged on the surface of the central part surrounded by the middle light distribution optical main body; a light-transmitting plate can also be made into a connected light-transmitting plate on the top surface of the central part surrounded by the middle light distribution optical main body, and an LED array surface light source or a COB surface light source with different luminous colors can be arranged below it to serve as the second light distribution LED (552), and the ring-shaped LED light source in or below the receiving groove can serve as the strip LED (551) to achieve a combined lighting function; a control circuit or a battery assembly can also be arranged in the inner cavity of the central part surrounded by the middle light distribution optical main body and connected to form a circuit with wires to control the LED to emit light in a certain pattern (such as flashing light with a certain period and duty cycle or dynamically emitting light in a time sequence); a light-transmitting plate can also be made into a connected light-transmitting plate on the top surface of the central part surrounded by the middle light distribution optical main body, and a solar photovoltaic device can be arranged below it, such as Fig.54 As shown, it has a solar-powered lighting function.

[0246] The shaped light-emitting lamp with an LED long afterglow composite light-emitting strip lens structure of the present invention has both the conventional strip LED emission function and the long afterglow light-emitting function, and can meet the emphasis required for actual light emission by selectively allocating the light energy ratio of the excitation light and the emission light; it can be made into various shapes as required, and can be used to make text or letter or symbol light-emitting modules, multi-functional lamps, light-emitting signboards, outline lamps or outline markers, ground lamps, etc., and has a wide range of applications.

[0247] Embodiment 6

[0248] Embodiment 6 of the present invention provides a signboard with a light-gathering structure LED long afterglow composite light-emitting strip lens structure, the waterproof strip lights of embodiment 3 can be perforated and implanted into the substrate as needed, or can be embedded or fixed on the surface of the substrate with a structural member, and the tops of the strip lights protrude from the surface of the substrate and are arranged in a certain shape, such as a straight line [such as Fig.55 , 56 As shown, each strip light may be provided with a strip long afterglow luminous forming body (620), or may be provided with a strip long afterglow luminous forming body (620) at intervals to achieve a mixed luminous effect, or may be in an arrow shape (such as Fig.57 , 58 As shown), each strip light is electrically connected to the outside through a wire from the bottom, and the rest of the surface of the metal substrate can be affixed with a reflective film.

[0249] The waterproof strip light can be packaged and then implanted into the substrate, or the strip lens body structure (610) can be implanted into the substrate, and then the strip LED (651) (652) (light bar or light belt) is installed below it and sealed with a base plate and packaging glue.

[0250] The signboard with an LED long afterglow composite luminous strip lens structure with a focusing structure of the present invention can be used as a traffic luminous signboard, such as being installed as an arrow sign on a road or facade (such as a tunnel side wall or the wall of an underground parking lot) facing the direction of travel of vehicles or pedestrians. It not only retains the original luminous quality of a conventional arrow sign and can achieve a conventional luminous effect, but also has the luminous function of a long afterglow luminous body and a retroreflective function, can take into account the respective needs of vehicles and pedestrians, and has good practical value.

[0251] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. All modifications, variations, combinations, superpositions, equivalent substitutions, etc. made within the spirit and principles of the present invention, or the application of this technology to related and similar technical fields, should be included in the protection scope of the present invention.

Claims

1. An LED long afterglow composite light-emitting strip lens, comprising a lens body structure (1), and a long afterglow light-emitting molding (2) bonded to the lens body structure (1) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner, characterized in that: The lens body structure (1) comprises a transparent middle light distribution optical main body (11) extending in a certain direction into a strip shape with the same cross-sectional shape, and a side surrounding part (12) arranged on both sides of the middle light distribution optical main body (11) and connected to the outer side thereof, which is used to adjust the light energy distribution ratio of the LED output light and the excitation light of the long afterglow luminous molding (2), and plays an optical coupling role with the long afterglow luminous molding (2) and performs a secondary light distribution role on the LED output light, and plays an optical main body structure role. The middle light distribution optical main body (11) is provided with an inwardly concave, downwardly opening accommodating groove (12) capable of accommodating the strip-shaped LED in the middle part of the bottom or near the middle part of the middle light distribution optical main body (11). 1A), a receiving groove (1B) or a fitting structure for combining with a long afterglow luminous molding (2) is provided on the lens body structure (1) according to the location, and the long afterglow luminous molding (2) is a strip-shaped solidified molding formed by mixing long afterglow luminous powder and a light-transmitting mixed medium in proportion and forming by liquid molding or molten state, and is combined with the side wall of the containing groove (1A) and the side surrounding part (12) or combined with the side surrounding part (12) or combined with the top of the containing groove (1A) through the receiving groove (1B) or the fitting structure, wherein a transparent light-guiding medium (3) is provided on the combining surface of the lens body structure (1) and the long afterglow luminous molding (2), and the combining surface is a light-guiding coupling surface (1e); The bottom of the intermediate light distribution optical main body (11) with the receiving groove (1A) is a light-collecting part, and the bottom of the light-collecting part is provided with a bottom surface (1b) of the light-collecting part arranged in parallel on both sides of the receiving groove (1A), and the upper part of the corresponding light-collecting part is a light-emitting part; the inner wall of the receiving groove (1A) of the light-collecting part is a light-entering surface (1a), and the top surface of the light-emitting part or / and the outer side surface of the side surrounding part (12) connected to the light-emitting part are light-emitting surfaces (1f), and at least a part of each of the light-entering surface (1a) and the light-emitting surface (1f) forms a light-emitting channel between the light-entering surface (1a) and the light-emitting surface (1f) correspondingly, which can make a part of the light beam emitted by the strip-shaped LED in the receiving groove (1A) or below it pass through the light-entering surface (1a) and be refracted or reflected in the lens body structure (1) without passing through the light-guiding coupling surface (1e), and be transmitted from the light-emitting surface (1f) to the outside with the original light-emitting spectrum of the strip-shaped LED, and make the part of the light emitted by the strip-shaped LED have a light-emitting spectrum along the light-entering surface (1a) and the light-emitting surface (1f) correspondingly. An optical structure with a light distribution and emission function in a vertical section in the extending direction of the receiving groove (1A); a light excitation channel is formed between the light incident surface (1a) and the long afterglow luminous molding (2) so that the light emitted by the strip-shaped LED can be transmitted to the long afterglow luminous molding (2); a light emission channel is formed between the long afterglow luminous molding (2) and the light emission surface (1f) so that when the strip-shaped LED emits light, the stimulated light of the long afterglow luminous molding (2) can be refracted or reflected from the light emission surface (1f) to emit light outward; and a light emission channel is formed so that after the strip-shaped LED is extinguished, a part of the afterglow light can be refracted or reflected from the light emission surface (1f) to emit light outward; and an LED long afterglow composite luminous strip lens with a strip-shaped long afterglow luminous molding (2) locally provided, at least the middle light distribution optical main body (11) being a transparent body, and having the functions of strip-shaped LED light distribution and long afterglow luminescence is formed.

2. The LED long afterglow composite light-emitting strip lens according to claim 1, characterized in that: An inwardly recessed receiving groove (1B) having a certain shape and being used to combine with the strip-shaped long afterglow luminous molding (2) and being parallel to the receiving groove (1A) is provided between the intermediate light distribution optical main body (11) and the side surrounding part (12); or a strip-shaped receiving groove (1B) having a certain shape and being used to combine with the strip-shaped long afterglow luminous molding (2) and being parallel to the receiving groove (1A) is provided at the top of the receiving groove (1A); The long afterglow luminescent molding (2) is a strip-shaped solidified molding formed by directly pouring the long afterglow luminescent powder and the liquid light-transmitting mixed medium into the receiving groove (1B) for leveling and solidification. The strip-shaped long afterglow luminescent molding (2) is combined on the inner wall of the receiving groove (1B) in a complementary shape to form the two sides of the receiving groove (1A) or the top of the receiving groove (1A) is provided with an overall structure, and its casting contact surface is a light-guiding coupling surface (1e).

3. The LED long afterglow composite light-emitting strip lens according to claim 1, characterized in that: The lens body structure (1) and / or the long afterglow luminous molding (2) are provided with a fitting structure for combining the two; The long afterglow luminescent molded body (2) is a strip-shaped preformed body formed by mixing long afterglow luminescent powder and a molten light-transmitting mixed medium in proportion and then solidifying through a mold. It is bonded and solidified on the lens body structure (1) in a matching manner according to the corresponding position and with the help of a transparent light-guiding medium (3) to form an overall structure of the strip-shaped long afterglow luminescent molded body (2) on both sides of the receiving groove (1A) or on the top of the receiving groove (1A); a transparent light-guiding medium (3) is provided on the bonding surface of the matching part where the matching structure is located to form a light-guiding coupling surface (1e).

4. The LED long afterglow composite light-emitting strip lens according to any one of claims 1 to 3, characterized in that: The light energy of the emitted light of the strip LED accounts for between 15% and 85%, or the total projection area of ​​the long afterglow luminous molding (2) in the vertical direction accounts for between 15% and 85% of the projection area of ​​the entire lens, or the area of ​​the light guide coupling surface (1e) accounts for between 15% and 100% of the outer surface area of ​​the lens body structure (1), or the thickness of the long afterglow luminous molding (2) accounts for between 15% and 85% of the height of the entire lens.

5. The LED long afterglow composite light-emitting strip lens according to any one of claims 1 to 3, characterized in that: The long afterglow luminescent molded body (2) is a mixed solidified molded body of yellow-green or blue-green aluminate type long afterglow luminescent powder represented by SrAl2O4 type long afterglow luminescent powder or Sr4Al14O25 type long afterglow luminescent powder, or red or near-red long afterglow luminescent powder represented by sulfide or nitride, and a liquid or molten light-transmitting mixed medium, or the long afterglow luminescent molded body (2) is a combination of two or more long afterglow luminescent bodies with different main excitation wavelengths or different main luminescent wavelengths, or the particle size of the long afterglow luminescent powder of the long afterglow luminescent molded body (2) is between 5μm and 200μm, or the proportion of the long afterglow luminescent powder in the long afterglow luminescent molded body (2) is between 20% and 60%, or the thickness of the preform of the long afterglow luminescent molded body (2) is between 1.5mm and 10mm.

6. The LED long afterglow composite light-emitting strip lens according to claim 1, characterized in that: The light incident surface (1a) is asymmetrical, or the light emitting surface (1f) is asymmetrical, or the receiving groove (1A) is asymmetrical, or the long afterglow luminous molding (2) is an asymmetrical body, or the optical main body (11) is an asymmetrical structure, or the side surrounding part (12) is an asymmetrical structure.

7. The LED long afterglow composite light-emitting strip lens according to any one of claims 1 to 3, characterized in that: The lens body structure (1) is made of PC, acrylic, PMMA, PS, epoxy resin or glass with a refractive index n1 between 1.4 and 2.2, and the liquid or molten transparent light-guiding medium (3) is made of epoxy resin, silicone or PU with a refractive index n2 between 1.4 and 2.

2.

8. The LED long afterglow composite light-emitting strip lens according to any one of claims 1 to 3, characterized in that: The lens body structure (1) is integrally formed or formed by combining separate parts or forming in stages; or the light emitting portion, the light collecting portion, and the side surrounding portion (12) of the lens body structure (1) are integrally formed; Alternatively, the light emitting portion and the light collecting portion of the lens body structure (1) are integrally formed, and are glued together with the side surrounding portion (12) connected to the transparent top cover by means of a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner; Alternatively, the light emitting portion and the side surrounding portion (12) of the lens body structure (1) are integrally formed, and are glued together with the light collecting portion by means of a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner; Alternatively, the height of the bottom surface of the side surrounding portion (12) is higher than the height of the bottom surface (1b) of the light collecting portion at the bottom of the light collecting portion, or the height of the bottom surface of the side surrounding portion (12) is lower than the height of the bottom surface (1b) of the light collecting portion at the bottom of the light collecting portion.

9. The LED long afterglow composite light-emitting strip lens according to any one of claims 1 to 3, characterized in that: The top of the lens body structure (1) is also provided with a transparent top cover or a transparent protective layer; Alternatively, a transparent protective layer is provided on or above the outer surface of the long afterglow luminescent molding (2); or a light-transmitting diffusion layer, a light-guiding layer or a reflective layer is provided on the surface of the long afterglow luminescent molding (2).

10. The LED long afterglow composite light-emitting strip lens according to any one of claims 1 to 3, characterized in that: The lens body structure (1) is also provided with a structural accessory (13); the structural accessory (13) is a limiting support structure (131) connected to the lens body structure (1) for assembling LEDs and circuit boards, or an outwardly expanded bottom edge (132) connected to the side surrounding portion (12) for installation and fixation, or a fastening structure or a fitting structure, or a waterproof sealing rubber ring structure (134), or a wire outlet groove (135), or a positioning component or a fitting structure or a support component on the bottom surface (1b) of the lighting portion at the bottom of the lighting portion, or a fitting structure or a fixing structure at the edge of the light emitting portion.

11. The LED long afterglow composite light-emitting strip lens according to any one of claims 1 to 3, characterized in that: Both ends of the LED long afterglow composite light-emitting strip lens are also provided with plugs (4); the lens body structure (1) and the plugs (4) are integrally formed or separately combined and formed.

12. The LED long afterglow composite light-emitting strip lens according to any one of claims 1 to 3, characterized in that: The light incident surface (1a) and the light exit surface (1f) form an optical structure of a cylindrical lens or a partial cylindrical lens, a non-cylindrical lens or a partial non-cylindrical lens, a total reflection lens or a partial total reflection lens, a prism or a partial prism, or a combination of two or more of the above.

13. The LED long afterglow composite light-emitting strip lens according to any one of claims 1 to 3, characterized in that: The inner wall of the receiving groove (1A) of the lens body structure (1) is a light incident surface (1a); wherein the top wall of the receiving groove (1A) is a top wall light incident surface (1a1), and the side wall of the receiving groove (1A) is a side wall light incident surface (1a2); the top wall light incident surface (1a1) and the side wall light incident surface (1a2) are connected as one.

14. The LED long afterglow composite light-emitting strip lens according to any one of claims 1 to 3, characterized in that: The top surface of the light emitting portion of the lens body structure (1) or / and the outer side surface of the side surrounding portion (12) connected to the light emitting portion is the light emitting surface (1f); wherein the top surface of the light emitting portion is the top light emitting surface (1f1), the outer side surface of the side surrounding portion (12) is the side light emitting surface (1f2), and the top light emitting surface (1f1) and the side light emitting surface (1f2) are connected as a whole; or, wherein the top surface of the light emitting portion is the top light emitting surface (1f1), the outer side surface of the side surrounding portion (12) is the side light emitting surface (1f2), the top light emitting surface (1f1) and the side light emitting surface (1f2) are connected as a whole, and a transition surface (1f3) is further provided between the top light emitting surface (1f1) and the side light emitting surface (1f2).

15. The LED long afterglow composite light-emitting strip lens according to claim 1, characterized in that: An optical structure is formed between the light incident surface (1a) and the light emitting surface (1f), such as a convex lens or a partially convex lens or a convex lens-like structure that is thick in the middle and thin around the periphery or a partially convex lens-like structure that is thick in the middle and thin around the periphery, which can focus at least part of the light of the strip-shaped LED in the receiving groove (1A) along a vertical cross section in the extending direction of the receiving groove (1A) for emission, or a coated reflective layer having a focusing function along a vertical cross section in the extending direction of the receiving groove (1A) is provided below the light collecting portion.

16. The LED long afterglow composite light-emitting strip lens according to claim 1, characterized in that: A concave lens or a partially concave lens or a thin middle and thick peripheral similar concave lens or a partially thin middle and thick peripheral similar concave lens is formed between the light entrance surface (1a) and the light exit surface (1f), which satisfies the requirement that at least part of the light from the strip-shaped LED in the receiving groove (1A) is emitted away from the main light-emitting axis along a vertical cross section in the extension direction of the receiving groove (1A).

17. The LED long afterglow composite light-emitting strip lens according to any one of claims 1 to 3, characterized in that: An optical microstructure is provided on the light incident surface (1a) or the bottom surface (1b) of the light-collecting portion or the outer side surface or light-emitting surface (1f) of the light-collecting portion, and the optical microstructure is an array composed of a plurality of microstructure prism units or an array composed of a plurality of microstructure lens units; or a plurality of cutting surfaces or prism stripes are provided on the light incident surface (1a) or the outer side surface or light-emitting surface (1f); or a light diffusion microstructure or a light uniforming microstructure is provided on the lens body structure (1); or a reflective layer is provided on the bottom surface (1b) of the light-collecting portion or the bottom surface of the peripheral portion of the lens body structure (1).

18. The LED long afterglow composite light-emitting strip lens according to any one of claims 1 to 3, characterized in that: The outer side or outer periphery of the intermediate light distribution optical main body (11) is also provided with a micro-prismatic reflective structure, or the side side or side periphery of the side surrounding part (12) is also provided with a micro-prismatic reflective structure.

19. The LED long afterglow composite light-emitting strip lens according to claim 2, characterized in that: The LED long afterglow composite light strip lens comprises an intermediate light distribution optical main body (11) extending in a straight line in a vertical direction with the same cross-sectional shape, and the bottom of the lighting part of the intermediate light distribution optical main body (11) is provided with a straight-line receiving groove (1A) which is concave inward and opens downward and can accommodate the strip LED, and its corresponding light incident surface (1a) and light emitting surface (1f) are cylindrical surfaces, and an optical structure having the function of a secondary light distribution strip lens is formed between the two along the vertical cross-section of the extending direction of the receiving groove (1A), wherein the intermediate light distribution optical main body (11) is provided with a straight-line receiving groove (1A) which is concave inward and opens downward and can accommodate the strip LED, and the corresponding light incident surface (1a) and light emitting surface (1f) are cylindrical surfaces, and the optical structure having the function of a secondary light distribution strip lens is formed between the two. Side surrounding parts (12) connected to the middle light distribution optical main body (11) are provided on both sides of the middle light distribution optical main body (11); a linear receiving groove (1B) arranged in parallel with the linear receiving groove (1A) is provided between the middle light distribution optical main body (11) and the side surrounding parts (12); a long afterglow luminous molding (2) is combined in whole or in sections on the inner wall of the linear receiving groove (1B) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner to form a linear LED long afterglow composite luminous strip lens.

20. The LED long afterglow composite light-emitting strip lens according to claim 2, characterized in that: The LED long afterglow composite light strip lens comprises an intermediate light distribution optical main body (11) extending in a non-vertical direction or deflected at a certain angle in a curve or a broken line shape with the same cross-sectional shape, and the bottom of the lighting part of the intermediate light distribution optical main body (11) is provided with a curved or broken line accommodating groove (1A) which is concave inwards and opens downward and can accommodate the strip LED, and an optical structure having a secondary light distribution strip lens function is formed between the corresponding light incident surface (1a) and the light emitting surface (1f) in a vertical cross section along the extension direction of the accommodating groove (1A). Side surrounding parts (12) connected to the middle light distribution optical main body (11) are provided on both sides of the middle light distribution optical main body (11); a curved or broken line accommodating groove (1B) arranged in parallel with the accommodating groove (1A) is provided between the middle light distribution optical main body (11) and the side surrounding parts (12); a long afterglow luminous molding (2) is combined in whole or in sections on the inner wall of the curved or broken line accommodating groove (1B) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner to form a curved or broken line LED long afterglow composite luminous strip lens.

21. The LED long afterglow composite light-emitting strip lens according to claim 2, characterized in that: The LED long afterglow composite light-emitting strip lens comprises a plurality of parallel arranged strip-shaped intermediate light distribution optical main body parts (11), wherein the receiving groove (1A) and the receiving groove (1B) are arranged in parallel with the intermediate light distribution optical main body part (11), and the long afterglow light-emitting molding (2) is combined with the inner wall of the receiving groove (1B) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner to form a corresponding strip shape.

22. The LED long afterglow composite light-emitting strip lens according to claim 2, characterized in that: The total projection area of ​​the long afterglow luminous molding (2) in the vertical direction accounts for 50% to 85% of the projection area of ​​the entire lens, or the combined surface area of ​​the long afterglow luminous molding (2) and the accommodating groove (1B) accounts for 50% to 100% of the surface area of ​​the inner wall of the accommodating groove (1B), or the thickness of the long afterglow luminous molding (2) accounts for 50% to 85% of the height of the entire lens, or the vertical cumulative height of the long afterglow luminous molding (2) accounts for 50% to 100% of the vertical depth of the accommodating groove (1B), or the angle between any point in the spatial position of the accommodating groove (1B) and the line connecting the center position for setting the strip LED and the central vertical axis of the accommodating groove (1A) is between 0° and 45°; or The total projection area of ​​the long afterglow luminous molding (2) in the vertical direction accounts for 15% to 50% of the projection area of ​​the entire lens, or the combined surface area of ​​the long afterglow luminous molding (2) and the accommodating groove (1B) accounts for 15% to 50% of the surface area of ​​the inner wall of the accommodating groove (1B), or the thickness of the long afterglow luminous molding (2) accounts for 15% to 50% of the height of the entire lens, or the vertical cumulative height of the long afterglow luminous molding (2) accounts for 10% to 50% of the vertical depth of the accommodating groove (1B), or the angle between any point in the spatial location of the accommodating groove (1B) and the line connecting the center position of the strip LED and the central vertical axis of the accommodating groove (1A) is between 45° and 90°.

23. The LED long afterglow composite light-emitting strip lens according to claim 2, characterized in that: The long afterglow luminous molding (2) is combined with the inner wall of the strip-shaped receiving groove (1B) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner to form a connected strip-shaped long afterglow luminous molding; or the receiving groove (1B) is a strip-shaped receiving groove (1B) separated by a transparent body, and the long afterglow luminous molding (2) is combined with the inner wall of the receiving groove (1B) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner to form a segmented strip-shaped long afterglow luminous molding (2); Alternatively, the lens body structure (1) is provided with two or more parallel strip-shaped accommodation grooves (1B), and the inner wall of each accommodation groove (1B) is combined with a strip-shaped long afterglow luminous molding (2) through a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner; Or the accommodating groove (1B) is narrow at the top and wide at the bottom; or the side wall light incident surface (1a2) is a cylinder; or the cross section of the accommodating groove (1B) is U-shaped, V-shaped or W-shaped; or the cross section of the light-guiding coupling surface (1e) is U-shaped, V-shaped or W-shaped.

24. The LED long afterglow composite light-emitting strip lens according to claim 2, characterized in that: The lens body structure (1) is a linear LED long afterglow composite light-emitting strip lens that is symmetrical along the vertical plane of the bottom surface passing through the central axis of the receiving groove (1A). The strip-shaped receiving groove (1B) is symmetrically arranged on the left and right sides of the receiving groove (1A). The strip-shaped long afterglow light-emitting molding (2) is symmetrically combined with the inner walls of the strip-shaped receiving groove (1B) on both sides of the receiving groove (1A) through a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner.

25. The LED long afterglow composite light-emitting strip lens according to claim 2, characterized in that: The light-emitting portion is an upwardly protruding strip-shaped light-emitting portion, and a strip-shaped daylighting portion connected thereto is correspondingly provided below the upwardly protruding portion of the light-emitting portion, and a strip-shaped receiving groove (1A) which is recessed upward and opens downward and is used to receive the strip-shaped LED is provided at the center of the bottom of the daylighting portion; the side surrounding portion (12) is turned upward, and a strip-shaped receiving groove (1B) which is open upward is formed between the outer side walls of the light-emitting portion and the inner side walls of the side surrounding portion (12); the strip-shaped long afterglow luminous molding (2) is combined with the inner wall of the receiving groove (1B) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner.

26. The LED long afterglow composite light-emitting strip lens according to claim 2, characterized in that: The lighting part is a downwardly protruding strip lighting part, and a strip accommodating groove (1A) is provided at the center of its bottom, which is concave upward and opens downward and is used to accommodate the strip LED, and its inner wall is a light incident surface, wherein the top wall forms a top wall light incident surface (1a1), and the side wall forms a side wall light incident surface (1a2) connected to the top wall light incident surface (1a1); the side surrounding part (12) is turned down, and a strip accommodating groove (1B) open downward is formed between the outer side walls of the lighting part and the inner side walls of the side surrounding part (12); the strip long afterglow luminous molding (2) The transparent light-guiding medium (3) is combined with the inner wall of the accommodating groove (1B) in a liquid solidification manner or a molten solidification manner.

27. The LED long afterglow composite light-emitting strip lens according to claim 2, characterized in that: The accommodating groove (1A) is combined with a strip-shaped long afterglow luminous molding (2) by means of a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner; or the light-emitting portion is provided with a strip-shaped receiving groove (1B), and the inner wall of the strip-shaped receiving groove (1B) is combined with a strip-shaped long afterglow luminous molding (2) by means of a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner; or the lens body structure (1) is provided with two or more strip-shaped receiving grooves (1B), and the inner wall of each accommodating groove (1B) is combined with a strip-shaped long afterglow luminous molding (2) by means of a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner.

28. The LED long afterglow composite light-emitting strip lens according to claim 2, characterized in that: The top light-emitting surface (1f1) of the light-emitting portion of the lens body structure (1) is a plane or a convex surface, the light-collecting portion is a downwardly protruding, upper-large and lower-small strip-shaped structure with a cross section in the shape of an inverted trapezoid or a strip-shaped structure similar to an inverted trapezoid, the top wall light-entering surface (1a1) is a plane or a convex surface or a concave surface, a light-collecting structure or a diverging structure with a vertical cross section along the extension direction of the receiving groove (1A) is formed between the light-entering surface (1a) and the corresponding light-emitting surface (1f), and a strip-shaped receiving groove parallel to the receiving groove (1A) is formed between the outer side surface of the light-collecting portion and the inner side surface of the side surrounding portion (12) (1B), a strip-shaped long afterglow luminous molding (2) is combined on the inner wall of the accommodating groove (1B) by means of a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner; the lens body structure (1) and the long afterglow luminous molding (2) are combined by means of a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner to form an LED long afterglow composite luminous strip lens that can make part of the light emitted by the strip-shaped LED be concentrated or divergently emitted along a vertical cross section in the extension direction of the accommodating groove (1A) according to the original spectrum and has an afterglow luminous function.

29. The LED long afterglow composite light-emitting strip lens according to claim 2, characterized in that: The top light-emitting surface (1f1) of the light-emitting portion is a plane or a convex light-collecting free-form surface, the light-collecting portion is a strip-shaped structure that is convex downward, larger at the top and smaller at the bottom, and has a cross-section that is an inverted trapezoid or a strip-shaped structure similar to an inverted trapezoid, the bottom surface (1b) of the light-collecting portion at the bottom of the light-collecting portion extends outward and upward to form an outer side surface of a convex free-form surface, and at least on the outer side surface close to the bottom surface (1b) of the light-collecting portion, a total reflection surface (1c) is formed that satisfies the condition that part of the incident light emitted by the strip-shaped LED in the accommodating groove (1A) can be totally reflected (TIR), the top wall light-entry surface (1a1) is a convex light-collecting free-form surface, and is aligned with the corresponding top surface (1a1). A light-gathering structure with a vertical cross section along the extension direction of the receiving groove (1A) is formed between the light-emitting surface (1f1) and the side surrounding portion (12); a strip-shaped receiving groove (1B) is provided between the lighting portion and the side surrounding portion (12); a strip-shaped long afterglow luminous molding (2) is combined on the inner wall of the receiving groove (1B) through a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner; the long afterglow luminous molding (2) is a molding formed by pouring a mixed slurry of long afterglow luminous powder and a liquid or molten light-transmitting mixed medium onto the inner wall of the receiving groove (1B) after the lens body structure (1) is turned over, and then leveling and solidifying.

30. The LED long afterglow composite light-emitting strip lens according to claim 2, characterized in that: The top of the light-emitting portion is raised as a whole, and the center of the top surface is concave, or the top light-emitting surface (1f1) of the light-emitting portion is a plane or a convex free-form surface with a small curvature. The light-collecting portion is a strip-shaped structure with a cross-section in an inverted trapezoid or a similar inverted trapezoid. The top wall light-entering surface (1a1) is an inwardly concave free-form surface with a large curvature, and a vertical cross-section along the extension direction of the receiving groove (1A) is formed between the light-collecting portion and the corresponding top light-emitting surface (1f1) and diverges away from the main axis of the light-emitting. A strip-shaped receiving groove (1B) is provided between the light-collecting portion and the side surrounding portion (12). A strip-shaped long afterglow luminous molding (2) is combined with a transparent light-guiding medium (3) on the inner wall of the receiving groove (1B) in a liquid solidification manner or a molten solidification manner. The long afterglow luminous molding (2) is a molding formed by pouring a mixed slurry of long afterglow luminescent powder and a liquid or molten light-transmitting mixed medium onto the inner wall of the receiving groove (1B) after the lens body structure (1) is turned over and then leveling and solidifying.

31. The LED long afterglow composite light-emitting strip lens according to claim 6, characterized in that: The light-emitting surface (1f) is an inclined surface with a certain inclination angle, or a free-form surface with a certain inclination angle and a central convex portion, or a plurality of inclined refractive surfaces are provided on the light-emitting surface (1f); at least a portion between the light-entering surface (1a) and the light-emitting surface (1f) forms an optical structure that enables the main light beam emitted by the strip-shaped LED in the receiving groove (1A) to be emitted in an acute angle direction with respect to the main light-emitting axis.

32. The LED long afterglow composite light-emitting strip lens according to claim 15, characterized in that: The middle parts of the light incident surface (1a) and the light emitting surface (1f) are respectively a plane and an outward convex light-gathering free-curve surface, or are respectively a double convex light-gathering free-curve surface, or the light emitting surface (1f) is provided with an upper convex light-gathering free-curve surface, or the top wall of the accommodating groove (1A) is the top wall light incident surface (1a1), and the top wall light incident surface (1a1) is a lower convex light-gathering free-curve surface.

33. The LED long afterglow composite light-emitting strip lens according to claim 15, characterized in that: The lighting portion protrudes downward, and the bottom surface (1b) of the lighting portion at the bottom of the lighting portion extends outward and upward to form an outer side surface, and at least on the outer side surface close to the bottom surface (1b) of the lighting portion, a TIR total reflection surface (1c) is formed to satisfy the condition that part of the incident light emitted by the strip-shaped LED in the receiving groove (1A) is totally reflected toward the inside of the lens or toward the upper side along the vertical section of the extending direction of the receiving groove (1A).

34. The LED long afterglow composite light-emitting strip lens according to claim 16, characterized in that: The middle parts of the light incident surface (1a) and the light emitting surface (1f) are respectively a plane and a concave divergent free-form surface, or are respectively a double concave divergent free-form surface, or the light emitting surface (1f) corresponding to the light incident surface (1a) above is a centrally concave free-form surface.

35. The LED long afterglow composite light-emitting strip lens according to claim 16, characterized in that: The light emitting surface (1f) is provided with an optical structure that satisfies the condition that part of the light from the strip-shaped LED in the receiving groove (1A) satisfies the total reflection condition toward the bottom of the lens or the side below.

36. The LED long afterglow composite light-emitting strip lens according to claim 16, characterized in that: The light-emitting portion is protruding upwards, and a strip-shaped light-collecting portion connected to the light-emitting portion and parallel to the receiving groove (1A) is correspondingly provided below the protruding portion of the light-emitting portion. A strip-shaped receiving groove (1A) which is concave upwards and opens downwards and is used to receive a strip-shaped LED is provided at the center of the bottom of the light-collecting portion. Both sides of the bottom of the light-collecting portion are provided with strip-shaped receiving grooves (1B) which are concave upwards, parallel to the receiving groove (1A), open downwards and are used to receive a strip-shaped long afterglow luminous molding (2); the strip-shaped long afterglow luminous molding (2) is combined with the inner wall of the receiving groove (1B) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner; The top wall of the receiving groove (1A) is a top wall light-entering surface (1a1), the curvature of the top wall light-entering surface (1a1) is greater than the curvature of the corresponding top light-emitting surface (1f1), and at least a portion between the light-entering surface (1a) and the light-emitting surface (1f) forms an optical structure that satisfies the requirement that at least part of the light of the strip-shaped LED in the receiving groove (1A) is emitted away from the main light-emitting axis along a vertical cross section in the extension direction of the receiving groove (1A).

37. The LED long afterglow composite light-emitting strip lens according to claim 16, characterized in that: The light-emitting portion is protruding upwards, and a strip-shaped lighting portion connected to the light-emitting portion and parallel to the receiving groove (1A) is provided below the protruding portion of the light-emitting portion. A strip-shaped receiving groove (1A) is provided at the center of the bottom of the lighting portion. The strip-shaped long afterglow light-emitting molding (2) is combined with the inner wall of the top of the receiving groove (1A) by a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner; The top wall of the receiving groove (1A) is a top wall light-entering surface (1a1); the curvature of the top wall light-entering surface (1a1) is greater than the curvature of the corresponding top light-emitting surface (1f1); at least a portion between the light-entering surface (1a) and the light-emitting surface (1f) forms an optical structure that satisfies the requirement that at least part of the light of the strip-shaped LED in the receiving groove (1A) is emitted away from the main light-emitting axis along a vertical cross section in the extension direction of the receiving groove (1A); and the thickness of the side wall of the lens body structure (1) is thin at the top and thick at the bottom.

38. The LED long afterglow composite light-emitting strip lens according to claim 33, characterized in that: An optical microstructure is provided on the TIR total reflection surface (1c), and the optical microstructure is a microstructure prism unit array or a microstructure lens unit array.

39. The LED long afterglow composite light-emitting strip lens according to claim 33, characterized in that: The TIR total reflection surface (1c) is provided with a secondary or more TIR structure; or the TIR total reflection surface (1c) is provided with a secondary or more TIR structure, a strip-shaped placement groove (1B) is provided between two adjacent TIR structures, and a strip-shaped long afterglow luminous molding (2) is combined on the inner wall of the strip-shaped placement groove (1B) through a transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner.

40. The LED long afterglow composite light-emitting strip lens according to claim 34, characterized in that: The top wall of the receiving groove (1A) is a top wall light incident surface (1a1), the curvature of the top wall light incident surface (1a1) is greater than the curvature of the side wall light incident surface (1a2), and the curvature of the top wall light incident surface (1a1) is greater than the curvature of the corresponding top light emitting surface (1f1); or the side wall cross section where the side light emitting surface (1f2) or the transition surface (1f3) is located is narrow at the top and wide at the bottom; or the top wall light incident surface (1a1) is convex downward, and the convex body is provided with a scattering microstructure.

41. A lighting device comprising the LED long afterglow composite light-emitting strip lens structure according to claim 1, characterized in that: A strip LED (5), a circuit board layer (6) and a packaging layer (7) are correspondingly arranged in the receiving groove (1A) of the LED long afterglow composite light-emitting strip lens or below the receiving groove (1A); the circuit board layer (6) is arranged at the bottom of the LED long afterglow composite light-emitting strip lens through a packaging glue or a fitting structure or a fastening structure and forms a sealed air layer with the inner wall of the LED long afterglow composite light-emitting strip lens; the strip LED (5) is arranged in the above-mentioned air layer without contacting the receiving groove (1A); the circuit board layer (6) is also connected to an external electrical connection line or a connection port (8); the packaging layer (7) is arranged below the circuit board layer (6) to package each component into one body to form a light-emitting body containing the LED lens structure; or a transparent light-guiding medium (3) layer is provided between the circuit board layer (6) and the inner wall of the LED long afterglow composite light-emitting strip lens; the strip LED (5) is fixed in the receiving groove (1A) by the transparent light-guiding medium (3) in a liquid solidification manner or a molten solidification manner.

42. The lighting device according to claim 41, characterized in that: A reflective layer or a reflector is also provided on the circuit board layer (6).

43. The lighting device according to claim 41, characterized in that: A second light distribution LED is also provided between the middle light distribution optical main body part (11) and the side surrounding part (12) of the LED long afterglow composite light emitting strip lens.

44. The lighting device according to claim 41, characterized in that: An accommodating groove capable of accommodating a strip-shaped LED is also provided below the long afterglow luminous molding (2) on the inner wall of the accommodating groove (1B), and a strip-shaped LED (5) is provided in the accommodating groove.

45. The lighting device according to claim 41, characterized in that: The strip LED (5) is a strip LED light source whose luminous spectrum has a wavelength range within the wavelength range of the excitation spectrum of the long afterglow luminous molding (2), or is a strip LED light source that crosses, overlaps or covers the wavelength range of the excitation spectrum of the long afterglow luminous molding (2), or is a strip LED light source that includes at least two or more light-emitting diodes and has two or more main luminous wavelengths, or is a visible light strip LED light source combined with a UV auxiliary light source corresponding to the excitation spectrum of the long afterglow luminous molding (2), or is a strip LED composed of multiple integrated packaged RGB LEDs, or is a strip LED composed of multiple integrated packaged RGBW LEDs, or is a strip LED composed of multiple integrated packaged RGB UV LEDs, or is a strip LED composed of multiple integrated packaged RG UV LEDs, or is a COB packaged two-color or multi-color strip LED luminous body.

46. ​​The lighting device according to claim 41, characterized in that: The circuit board layer (6) is also connected to an external wire or an electrode or a control circuit, or a chassis or a bracket is also provided below the circuit board layer (6).

47. The lighting device according to claim 41, characterized in that: The light emitting device of the LED long afterglow composite light emitting strip lens structure is also provided with a retroreflective material or a retroreflective structure.

48. The lighting device according to claim 41, characterized in that: The strip-shaped LED (5) is controlled to emit light in a stroboscopic manner at a certain period and duty cycle and excite the long afterglow luminous body (2) to emit light, and the light-emitting device is a light-emitting device controlled in a stroboscopic light-emitting mode; or the strip-shaped LED (5) includes two or more LEDs, which are controlled to emit light in a certain period and duty cycle and in a time sequence and excite the long afterglow luminous body (2) to emit light, and the light-emitting device is a light-emitting device controlled in a time sequence light-emitting mode; or the strip-shaped LED (5) is also connected to an energy storage element; or the strip-shaped LED (5) is also connected to a solar photovoltaic device, and the light-emitting device is a light-emitting device powered by solar energy.

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