Optical system

Abstract

The invention discloses an optical system which comprises a light-emitting element, a light conductor and a lens, the light-emitting element and the light conductor are of an integrated structure, the light-emitting element is used for emitting light in the first direction, and the light conductor at least covers the light-emitting side of the light-emitting element in the first direction; the lens is arranged on the side, facing the first direction, of the optical conductor. Wherein a light diffusion agent is added into a forming material of the light conductor. According to the optical system, the light-emitting element and the light conductor are designed into an integrated structure, so that the problem of assembly errors caused by split design is effectively avoided, the stability of light path coupling is improved, and the risk of reduction of the lighting effect is reduced; moreover, the light guide body covers the light-emitting side of the light-emitting element, so that the light emitted by the light-emitting element can be gathered, the angle of the light is narrowed, the light is directionally propagated in a more concentrated manner, the mixing effect of the light with different colors is improved, and the problems of non-uniform color distribution and brightness fluctuation are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of light display, and in particular to an optical system. Background Art

[0002] In the application of SMD multi-color light sources (such as RGBYAW combination), due to the difference in the emitting angles and physical position offset of chips of different colors, problems such as uneven color distribution and brightness fluctuations in different directions are prone to occur when light is mixed. To improve the color mixing effect, conventional solutions need to rely on long-distance optical conductors or complex splitting systems to achieve uniform light diffusion through multiple total reflections.

[0003] In the prior art, light sources and optical conductors are mostly designed in a split type, for example, light-emitting elements and optical conductors are indirectly connected through optical fibers, light guides or lens assemblies. Split optical path coupling is prone to reduced light efficiency and insufficient stability due to assembly errors. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an optical system to solve the technical problems that the light source and the optical conductor in the prior art mostly adopt a split design, and the split optical path coupling is prone to assembly errors, resulting in reduced light efficiency and insufficient stability.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] The present invention provides an optical system, comprising a light-emitting element, a light conductor and a lens, wherein the light-emitting element and the light conductor are an integrated structure, the light-emitting element is used to emit light in a first direction, and the light conductor at least covers the light-emitting side of the light-emitting element in the first direction; the lens is arranged on the side of the light conductor facing the first direction; wherein a light diffusing agent is added to the molding material of the light conductor.

[0007] Furthermore, the lens includes a light incident side surface and a light emitting side surface, and a length of the light emitting side surface from the light incident side surface gradually decreases along the second direction.

[0008] Furthermore, the thickness of the lens gradually decreases along the second direction.

[0009] Furthermore, the distance between the lens and the light emitting element is in the range of [3mm, 15mm].

[0010] Furthermore, the light diffuser includes one or more of silicon dioxide, polysiloxane particles, aluminum oxide, and borosilicate glass.

[0011] Furthermore, the optical conductor includes a first curved surface structure, and the first curved surface structure is used to narrow the angle of light emitted by the light emitting element; the cross-sectional area of ​​the first curved surface structure along the first direction remains unchanged or gradually decreases.

[0012] Furthermore, the first curved surface structure includes a first light guide portion disposed at an end of the first direction, and a cross-sectional area of ​​the first light guide portion gradually decreases along the first direction.

[0013] Further, the length of the first curved surface structure along the first direction is in the range of [1 mm, 20 mm];

[0014] And / or, a cross-sectional diameter of the first curved surface structure along the first direction is in the range of [2 mm, 50 mm].

[0015] Furthermore, the optical conductor and the light emitting element are formed into an integrated structure by a molding process.

[0016] Furthermore, the light emitting angle of the light emitting element is in the range of [90°, 130°];

[0017] And / or, the luminous angle of the light emitted by the light emitting element after passing through the optical waveguide is within the range of [30°, 60°].

[0018] The optical system of the present invention effectively avoids the assembly error problem caused by the split design by designing the light-emitting element and the optical conductor into an integrated structure, improves the stability of the optical path coupling, and reduces the risk of reduced light efficiency; and the optical conductor covers the light-emitting side of the light-emitting element, which can gather the light emitted by the light-emitting element, narrow the angle of the light, and allow the light to propagate more concentratedly and directionally, thereby improving the mixing effect of light of different colors and reducing the problems of uneven color distribution and brightness fluctuation.

[0019] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of the integrated structure of the light-emitting element and the light-conducting body of the optical system according to an embodiment of the present invention;

[0021] Figure 2 It is a front view of the integrated structure of the light emitting element and the light conductor of the optical system according to an embodiment of the present invention;

[0022] Figure 3 is a stereogram of an optical system according to an embodiment of the present invention;

[0023] Figure 4 is a front view of an optical system according to an embodiment of the present invention;

[0024] Figure 5 for Figure 4 A magnified view of part A;

[0025] Figure 6 for Figure 4 A magnified view of part B;

[0026] Figure 7 A light simulation diagram of an optical system according to an embodiment of the present invention;

[0027] Figure 8 Schematic diagram of the internal structure of the optical system according to an embodiment of the present invention.

[0028] Description of the symbols in the figure:

[0029] 10. Light-emitting element; 11. Light conductor; 111. First curved surface structure; 1111. First light-guiding portion; 12. First mounting seat; 13. First threaded rod; 14. First bearing; 15. First guide rod; 20. First substrate; 30. Lens; 301. Light-emitting side; 302. Light-entering side; 31. First sliding member; 32. Second sliding member; 40. First slideway; 50. Second slideway; 60. Translucent cover; 70. Cooling fan. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “resin”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0037] See also Figure 1 and Figure 2The embodiment of the present invention provides an optical system, including a light emitting element 10 and a light conductor 11. The light emitting element 10 and the light conductor 11 are an integrated structure. The light emitting element 10 is used to emit light in a first direction. The light conductor 11 at least covers the light emitting side of the light emitting element 10 in the first direction. The light conductor 11 includes a first curved surface structure 111, and the first curved surface structure 111 is used to gather the angle of the light emitted by the light emitting element 10. Optionally, the light emitting element 10 includes a lamp bead, and the lamp bead includes light emitting chips of one or more colors. For example, the lamp bead includes one or more of red, green, blue, yellow, amber and white chips. For another example, the lamp bead includes red, green and blue chips. The combination of light emitting chips included in the lamp bead is not described in detail here.

[0038] It is understandable that by designing the light-emitting element 10 and the optical conductor 11 into an integrated structure, the assembly error problem caused by the split design is effectively avoided, the stability of the optical path coupling is improved, and the risk of reduced light efficiency is reduced; and the optical conductor 11 covers the light-emitting side of the light-emitting element 10, which can play a role in gathering the light emitted by the light-emitting element 10, narrowing the angle of the light, allowing the light to propagate more concentratedly and directionally, improving the mixing effect of light of different colors, and reducing the problems of uneven color distribution and brightness fluctuation. It should be explained that the first curved surface structure 111 in this embodiment is not only used to gather the angle of the light emitted by the light-emitting element 10, but also used to provide a carrier for multiple reflections and refractions for the incident light from the light-emitting element 10, so that the light of different colors is mixed more evenly in the optical conductor 11, and the color of the light emitted through the optical conductor 11 is more uniform.

[0039] In a feasible implementation process, the light emitting element 10 emits light in a first direction, and the light first enters the optical conductor 11 connected thereto; inside the optical conductor 11, the light is gradually uniformized after multiple reflections and refractions, and light of different colors is fully mixed in this process; the first curved surface structure 111 of the optical conductor 11 gathers the light, narrows the angle of the light, and propagates forward more concentratedly; the light processed by the optical conductor 11 is finally emitted to form a relatively uniform light beam, avoiding the problems of uneven color distribution and brightness fluctuation in different directions.

[0040] Furthermore, the cross-sectional area of ​​the first curved surface structure 111 along the first direction remains unchanged or gradually decreases. It should be explained that, in order to achieve better light control and color mixing effect, by controlling the change of the cross-sectional area of ​​the first curved surface structure 111 along the first direction, the reflection, refraction and diffusion behavior of the light in the optical conductor 11 can be affected, thereby optimizing the output characteristics of the light, making it more uniform and concentrated, further improving the color mixing effect of the multi-color light source, and reducing problems such as uneven color distribution and brightness fluctuation. In this embodiment, when the cross-sectional area of ​​the first curved surface structure 111 remains unchanged, the light will propagate therein according to a fixed reflection and refraction law, maintain a relatively stable beam width and angle, gradually propagate forward and be evenly mixed. When the cross-sectional area of ​​the first curved surface structure 111 gradually decreases, the light will continuously encounter the gradually narrowing curved surface during the propagation process, and will be guided to the center each time it is reflected, the angle of the light will gradually decrease, the light beam will gradually narrow, and finally form a more concentrated and narrow light beam when it is output from the optical conductor 11, and lights of different colors are also better mixed in this process.

[0041] In some embodiments, the first curved surface structure 111 includes a first light guide portion 1111 disposed at the end of the first direction, and the cross-sectional area of ​​the first light guide portion 1111 gradually decreases along the first direction. It can be understood that by disposing the first light guide portion 1111 with a gradually decreasing cross-sectional area at the end of the first direction, that is, disposing the first light guide portion 1111 with a gradually decreasing cross-sectional area at the position where the light is about to leave the optical conductor 11, the light can be more concentrated and directed when output, thereby improving the brightness and color mixing effect of the optical system, reducing the scattering and energy loss of light, and improving the overall optical performance.

[0042] In a feasible implementation process, the light emitted by the light-emitting element 10 first enters the first curved surface structure 111 of the optical conductor 11. As the light propagates, it will reach the first light guide portion 1111 at the end of the first direction of the optical conductor 11. In the first light guide portion 1111, due to the gradual decrease in cross-sectional area, the light will be further gathered and the divergence angle will be further reduced. Finally, the light processed by the first light guide portion 1111 will be output from the optical conductor 11 in the form of a more concentrated and narrow light beam, thereby achieving better light control and output effects.

[0043] In some embodiments, the first curved structure 111 includes a second light guide portion disposed between the first light guide portion 1111 and the light emitting element 10, and the cross-sectional area of ​​the second light guide portion along the first direction remains unchanged. It is understandable that by disposing a second light guide portion with a constant cross-sectional area between the first light guide portion 1111 and the light emitting element 10, a stable propagation environment can be provided for the light, avoiding excessive divergence or uneven distribution of the light before entering the first light guide portion 1111, thereby improving the utilization rate of the light and the color mixing effect, and reducing the loss and unevenness of the light.

[0044] In a feasible implementation process, after the light is emitted from the light-emitting element 10, it first enters the second light guide portion. Since the cross-sectional area of ​​the second light guide portion remains unchanged along the first direction, the light will propagate therein according to relatively stable reflection and refraction laws, and there will be no changes in light convergence or divergence caused by changes in the cross-sectional area. Therefore, the light can maintain a relatively uniform distribution and a stable propagation direction before entering the first light guide portion 1111, providing a good foundation for the subsequent further gathering and concentration of the light by the first light guide portion 1111.

[0045] In some embodiments, the second light guide portion may be a cylinder or a prism.

[0046] In some embodiments, the length of the first curved surface structure 111 along the first direction is in the range of [1 mm, 20 mm]; and / or the cross-sectional diameter of the first curved surface structure 111 along the first direction is in the range of [2 mm, 50 mm].

[0047] Furthermore, a light diffuser is added to the molding material of the light conductor 11. It is understandable that the function of the light diffuser is to disperse the light, making it softer and more uniform, and avoiding the light being too glaring or uneven in brightness. Specifically, the light diffuser is a microsphere product, which is added to the molding material of the light conductor 11. When the light passes through the light conductor 11, optical phenomena such as refraction, reflection and scattering will occur on the surface of the microspheres of the light diffuser, making the output light more uniform, avoiding the phenomenon of local overbrightness or overdarkness, and improving the quality of the lighting effect.

[0048] It should be explained that the length of the light guide column in the prior art is usually long, because the light is fully reflected and refracted by using a long optical path propagation path, so that the light is fully mixed after multiple reflections and refractions; however, the long light guide column will increase the attenuation and loss during the light transmission process, making the lighting effect worse, and the long light guide column will also increase the volume and cost of the module, and the assembly complexity will also increase accordingly. In view of this, in this embodiment, the length of the first curved surface structure 111 along the first direction is within the range of [1mm, 20mm], which fully reduces the length of the light conductor 11, but the means to achieve this effect is to add a light diffuser to the light conductor 11, so that the light can achieve better diffusion and uniform mixing effects in a shorter optical path, so that the color of the light emitted by the shorter light conductor 11 of this embodiment can be mixed evenly. With the optical system of this embodiment, the shorter length and smaller cross-sectional diameter of the light conductor 11 bring about a smaller volume, which makes the assembly of the entire optical system easier, improves production efficiency and product reliability, and helps to reduce the overall volume of the optical system, reduce material and production costs, and make the product more competitive in the market.

[0049] In some embodiments, the light diffuser includes one or more of silicon dioxide, polysiloxane particles, aluminum oxide, and borosilicate glass. It should be explained that silicon dioxide, polysiloxane particles, aluminum oxide, and borosilicate glass can effectively scatter and refract light inside the optical conductor 11, so that the light is more evenly distributed, thereby improving the uniformity and softness of the lighting effect. Among them, silicon dioxide is an inorganic light diffuser, and its particles can scatter and refract light to make the light distribution more uniform. Polysiloxane particles belong to organic light diffusers, and light will be refracted multiple times when passing through it, achieving light diffusion while maintaining a high light transmittance. Aluminum oxide has good optical properties and chemical stability, and can be used as a light diffuser to improve the haze and light diffusion effect of the material. Borosilicate glass has good heat resistance and chemical stability, and its particles can effectively scatter and refract light to achieve uniform distribution of light.

[0050] In a feasible implementation process, the optical conductor 11 is made of resin or other light-transmitting materials as a base material, and one or more of silica, polysiloxane particles, aluminum oxide, and borosilicate glass are added as light diffusers during the casting process of the optical conductor 11. When light enters the optical conductor 11, it will encounter these light diffuser particles. The light treated with the light diffuser is output from the optical conductor 11 to form a softer and more uniform light beam, avoiding the problems of glare and uneven brightness.

[0051] In some embodiments, the optical conductor 11 and the light emitting element 10 are formed into an integrated structure by a molding process. It should be explained that the molding process is a high-precision processing technology, which is to directly mold and form optical parts that meet the use requirements by placing softened transparent materials such as glass, resin or plastic into a high-precision mold, heating, pressurizing and treating in an oxygen-free environment. In the integrated structure of the optical conductor 11 and the light emitting element 10 of this embodiment, the molding process can accurately control the relative position and shape of the optical conductor 11 and the light emitting element 10, ensure that the optical conductor 11 effectively gathers and controls the light emitted by the light emitting element 10, and at the same time improve the bonding strength and stability of the two, reduce assembly errors, and improve the accuracy and stability of optical path coupling, thereby improving the performance and reliability of the optical system.

[0052] In a feasible implementation process, the optical system in this embodiment includes a first substrate 20, which serves as a mounting carrier for the light-emitting element 10, can provide a mounting surface for the combined structure of the light-emitting element 10 and the optical conductor 11, and provide power for the light-emitting element 10. The first substrate 20 can be a circuit board, and the light-emitting element 10 can be directly soldered on the first substrate 20 using electronic circuit surface mounting technology (Surface Mount Technology, SMT).

[0053] In a feasible implementation process, the first substrate 20 with the light-emitting element 10 installed is placed in a molding mold, and a molding cavity for molding the light conductor 11 is provided in the molding mold. The light-emitting element 10 installed on the first substrate 20 is placed in the molding cavity. The main body of the light conductor 11 is formed by injecting softened transparent materials such as glass, resin or plastic into the molding cavity, and one or more of silica, polysiloxane particles, aluminum oxide, and borosilicate glass are added as light diffusers. Finally, after waiting for cooling, molding and demolding, an integrated structure of the light conductor 11 and the light-emitting element 10 is obtained. The light conductor 11 is tightly bonded to the light-emitting element 10, which reduces assembly errors, improves the accuracy and stability of optical path coupling, and thus improves the performance and reliability of the optical system.

[0054] In some embodiments, the light emitting angle of the light emitting element 10 is in the range of [90°, 130°]; and / or, the light emitting angle of the light emitted by the light emitting element 10 after passing through the optical conductor 11 is in the range of [30°, 60°]. It should be explained that the light emitting angle is also called the power angle. Usually we use the half-power angle, that is, the angle of 50% luminous intensity. Taking the light emitting element 10 as an example, taking the brightest light beam emitted by the light emitting element 10 as the center line, if the maximum angle to the light beam with 50% of its luminous intensity is 60° and -60°, the light emitting angle of the light emitting element 10 is considered to be 120°. It should be noted that the above are only a limited number of examples, and the definition and measurement of the light emitting angle will not be repeated here.

[0055] In this embodiment, the light emitting angle of the light emitting element 10 is within the range of [90°, 130°], which means that the light emitted by it is relatively scattered in the initial stage. Such a design can ensure that the light has sufficient light coverage after entering the optical conductor 11, providing a basis for the subsequent light gathering and mixing. Through the action of the optical conductor 11, the scattered light emitted by the light emitting element 10 is gathered, mixed and diffused, and finally the light emitting angle of the light emitted by the light emitting element 10 after passing through the optical conductor 11 is controlled within the range of [30°, 60°]. Such an angle range can ensure that the output light is both concentrated and uniform, and avoid poor lighting effects caused by excessive dispersion or concentration of light.

[0056] See also Figures 3 to 6, the present invention further includes a lens 30, which is arranged on one side of the optical conductor 11 facing the first direction. It can be understood that the addition of the lens 30 and its spacing on one side of the optical conductor 11 is to further optimize the distribution and control of the light, wherein the lens 30 can focus, diverge or deflect the light, so as to meet the requirements of light shape, angle and intensity in different application scenarios, and improve the flexibility and adaptability of the optical system. Specifically, the lens 30 is an element that uses optical principles to control light. When the light passes through the lens 30, the propagation direction of the light changes due to the refraction of the lens 30. According to the design of the lens 30, the light can be focused to a smaller area, or diverged to a larger area, or deflected to a specific direction. The addition of the lens 30 enables the optical system to control the light more accurately, achieve the expected beam shape, angle and intensity distribution, and meet the lighting needs in different application scenarios.

[0057] In some embodiments, the lens 30 includes a light incident side surface 302 and a light emitting side surface 301 , and the length of the light emitting side surface 301 from the light incident side surface 302 gradually decreases along the second direction.

[0058] In some embodiments, the thickness of the lens 30 gradually decreases along the second direction.

[0059] Optionally, the second direction is a vertically downward direction. It is understandable that, taking the second direction as an example of a vertically downward direction, the length of the light-emitting side surface 301 from the light-entering side surface 302 gradually decreases along the second direction, and the thickness of the lens 30 gradually decreases along the second direction. This thick-on-top-thin-on-bottom structural design causes the propagation path of the light inside the lens 30 to change due to the thickness difference at different positions when the light passes through the lens 30. Specifically, the light first emits from the light-emitting element 10, and after being gathered and preliminarily adjusted by the optical conductor 11, it enters the light-entering side surface 302 of the lens 30; inside the lens 30, the light is refracted and the propagation direction changes according to the thickness change at different positions. Since the thickness of the lens 30 gradually decreases along the second direction, the propagation direction of the light gradually deflects toward the second direction during the process of passing through the lens 30; finally, the light is emitted from the light-emitting side surface 301 of the lens 30, forming a more concentrated light beam that is biased toward the second direction, reducing the scattering of the light in other directions and reducing light waste.

[0060] In some embodiments, the distance between the lens 30 and the light emitting element 10 is in the range of [3 mm, 15 mm].

[0061] It can be understood that by controlling the distance between the lens 30 and the light-emitting element 10 within the range of [3mm, 15mm], the optical system structure of the present invention is more compact, the volume is reduced, and the weight is reduced, meeting the market demand for lightweight products; and this distance design also helps to improve the lighting efficiency and reduce the energy loss of light during the propagation process, thereby achieving higher brightness and better optical performance, avoiding the problems of light loss and large product thickness caused by excessive distance.

[0062] See also Figure 7 In some embodiments, the lens 30 is used to make the light passing through the lens 30 deflect to the second direction, and the second direction is perpendicular to the first direction; and / or, the lens 30 is used to make the luminous angle of the light passing through the lens 30 be a preset angle in the third direction, and the third direction is perpendicular to the first direction. Optionally, the first direction and the third direction are both horizontal directions, and the second direction is a vertical direction. Optionally, the lens 30 is used to make the luminous angle of the light passing through the lens 30 in the third direction be a preset angle, and the preset angle is in the range of [20°, 50°]. For example, the preset angle can be 30°, that is, the optical system takes itself as the zero point, and the angle at which the luminous intensity in the third direction is greater than 50% of the luminous intensity is -15° to 15°.

[0063] Optionally, the optical system in this embodiment can be applied to road indicator lights. Taking the road indicator lights on a highway where vehicles are traveling as an example, the first direction is a first horizontal direction corresponding to the direction of vehicle travel, the second direction is a vertical direction pointing downward, and the third direction is a second horizontal direction perpendicular to the direction of vehicle travel. It can be understood that the light emitted along the first direction can enable the vehicle driver to observe the indication information of the road indicator light more clearly; the light shifting to the second direction can reduce the loss of light in the empty direction that is not observable by the vehicle driver, so that the light is concentrated in the lower area that can be observed by the vehicle driver; the light emission angle of the light in the third direction determines the number of lanes that the light can fully display, so that the vehicle driver on the lane that needs to be indicated can more clearly observe the indication information of the road indicator light. It should be explained that only the effective number of road indicator lights is used as an example here. The optical system in this embodiment can also be applied to various lighting application scenarios such as indoor lights and stage lights, which will not be repeated here.

[0064] Please refer to Figures 3 to 6In some embodiments, an unlimited number of light-emitting elements 10 are mounted on the same side of the first substrate 20 in a preset arrangement. Preferably, all the light-emitting elements 10 are arranged in a matrix on the same side of the first substrate 20, and each light-emitting element 10 and a light conductor 11 form an integrated structure. The first substrate 20 is electrically connected to a power supply or an external power supply disposed thereon, and the light-emitting element 10 is electrically connected to the first substrate 20, so that the first substrate 20 provides a current path between the light-emitting element 10 and the power supply. It can be understood that by arranging a plurality of light-emitting elements 10 in a matrix, the optical system can be compactly integrated, the space can be effectively utilized, and the entire optical system can be made more compact and lightweight. If more light-emitting elements 10 need to be added, it is only necessary to add new light-emitting elements 10 to the first substrate 20, without large-scale changes to the entire system, thereby improving the scalability and flexibility of the system.

[0065] Furthermore, each light emitting element 10 is provided with a corresponding lens 30, and in the first direction, the light emitting element 10 and the optical conductor 11 formed integrally therewith are located between the first substrate 20 and the corresponding lens 30. It can be understood that each light emitting element 10 corresponds to a lens 30, which can improve the control accuracy of the entire optical system on light.

[0066] In some embodiments, the first substrate 20 is provided with a plurality of first through holes having the same number as the light-emitting elements 10, and the plurality of first through holes are arranged in a matrix on the first substrate 20, and the light-emitting elements 10 are assembled with the corresponding first through holes through the corresponding first connecting components. Specifically, the first connecting component includes a first threaded rod 13 and a first mounting seat 12, an internal thread is provided in the first through hole, an external thread is provided on the outer side of the first threaded rod 13, and the first threaded rod 13 is threadedly matched with the first through hole; the first mounting seat 12 is provided at one end of the first threaded rod 13 facing the first direction, and the first mounting seat 12 is parallel to the first substrate 20; the light-emitting element 10 is installed on the side of the first mounting seat 12 away from the first substrate 20, and the position adjustment of the light-emitting element 10 and the optical conductor 11 can be achieved by adjusting the first threaded rod 13, so that the light-emitting element 10 is close to or away from its corresponding lens 30, so as to adjust the light-emitting angle of the light emitted through the lens 30. It is understandable that as the light emitting element 10 and the optical conductor 11 age or the lens 30 ages, the light emission angle of the light emitting element 10 or the optical performance of the lens 30 may change compared to the factory settings. Through the adjustable threaded connection, the relative positions of the light emitting element 10 and the optical conductor 11 and the lens 30 can be readjusted when necessary to compensate for these changes and maintain the optical performance of the system stable.

[0067] Optionally, the first connection assembly further includes at least two first guide rods 15, and the first through hole is provided with a first guide hole corresponding to the first guide rod 15, one end of the first guide rod 15 is connected to the first mounting seat 12, and the other end passes through the first guide hole; the first mounting seat 12 is provided with a first bearing 14 on the side close to the first substrate 20, the inner ring of the first bearing 14 is connected to the first threaded rod 13, and the outer ring of the first bearing 14 is connected to the first mounting seat 12, and there is no direct connection between the first threaded rod 13 and the first mounting seat 12. Therefore, when the position of the light-emitting element 10 is adjusted by adjusting the first threaded rod 13, the light-emitting element 10 will not rotate with the rotation of the first threaded rod 13, and will only move closer to or away from its corresponding lens 30 with the movement of the first mounting seat 12. It is understandable that during the installation and adjustment of the light-emitting element 10, it is necessary to ensure that the light-emitting element 10 and the optical conductor 11 can move accurately in a straight line direction to adjust the distance between them and the lens 30, thereby optimizing the light emission angle; at the same time, it is necessary to avoid rotation of the module during movement to avoid affecting the propagation direction of the light and the stability of the optical system. In this embodiment, by adding the structure of the first guide rod 15 and the first bearing 14, the integrated structure composed of the light-emitting element 10 and the optical conductor 11 can be moved accurately in a straight line direction, thereby improving the adjustment accuracy and reliability of the system.

[0068] In some embodiments, the integrated structure composed of a plurality of light emitting elements 10 and a light conductor 11 is arranged in a matrix on the first substrate 20, and a first slide 40 and a second slide 50 are provided on both sides of each row of light emitting elements 10 in the second direction, and the lens 30 corresponding to each integrated structure composed of a light emitting element 10 and a light conductor 11 is slidably mounted on the first slide 40 of the corresponding row through a first sliding assembly, and is slidably mounted on the second slide 50 of the corresponding row through a second sliding assembly. Thus, each lens 30 can move along the first slide 40 and the second slide 50 in the second direction to change its relative position with the integrated structure composed of the corresponding light emitting element 10 and the light conductor 11 in the second direction, thereby changing the deviation angle of the light emitted by the corresponding optical system 10 to the second direction after refraction. It can be understood that the lens 30 is installed on the first slide 40 and the second slide 50 through the first sliding assembly and the second sliding assembly, and can move freely along the second direction. The first slide 40 and the second slide 50 provide guidance and restriction for the movement of the lens 30 to ensure its movement along the path in the second direction. When the relative position of the integrated structure composed of the lens 30, the light emitting element 10 and the optical conductor 11 changes, the refraction path of the light after passing through the lens 30 will also change accordingly, thereby adjusting the offset angle of the light. By flexibly adjusting the position of the lens 30, fine-tuning can be performed during the use of the system to compensate for the degradation of optical performance due to aging of components or environmental changes, thereby extending the service life of the system.

[0069] In some embodiments, the first sliding assembly includes a first sliding member 31, a first connecting member, and a second bearing. The first sliding member 31 is slidably matched with the first slideway 40. Two second through holes are provided on the side of the lens 30 corresponding to the first sliding member 31. The inner side of the second through hole is provided with an internal thread. The outer side of the first connecting member is provided with an external thread. The two first connecting members are respectively threadedly matched with the two second through holes. One end of the first connecting member passes through the corresponding second through hole and is connected to the corresponding inner ring of the second bearing. The outer ring of the second bearing is connected to the first sliding member 31. Preferably, the first connecting member, the second through hole, and the second bearing correspond in the first direction. The second sliding assembly includes a second sliding member 32, a second connecting member, and a third bearing. The second sliding member 32 is slidably matched with the second slideway 50. Two third through holes are provided on the side of the lens 30 corresponding to the second sliding member 32. The inner side of the third through hole is provided with an internal thread. The outer side of the second connecting member is provided with an external thread. The two second connecting members are respectively threadedly matched with the two third through holes. One end of the second connecting member passes through the corresponding third through hole and is connected to the corresponding inner ring of the third bearing. The outer ring of the third bearing is connected to the second sliding member 32. Preferably, the second connector, the third through hole, and the third bearing correspond in the first direction. Preferably, the projection of the lens 30 in the first direction is a rectangle, and the two second through holes and the two fourth through holes are respectively located at the four corners of the projection of the lens 30 in the first direction, so that the inclination of the lens 30 relative to the integrated structure composed of the light-emitting element 10 and the optical conductor 11 can be adjusted by regulating the two first connectors and the two second connectors. It can be understood that by flexibly adjusting the position and inclination of the lens 30, fine-tuning can be performed during the use of the system to compensate for the degradation of optical performance caused by component aging or environmental changes, thereby extending the service life of the system.

[0070] Optionally, the first sliding member 31 and the second sliding member 32 include a semiconductor refrigeration plate, the cold end of the semiconductor refrigeration plate faces a side close to the integrated structure composed of the light-emitting element 10 and the optical conductor 11, and the hot end faces a side away from the integrated structure composed of the light-emitting element 10 and the optical conductor 11.

[0071] In some embodiments, Figure 8 As shown, the invention also includes a light-transmitting cover 60, which is disposed on the first substrate 20, and the light-emitting element 10, the light conductor 11 and the lens 30 are enclosed between the light-transmitting cover 60 and the first substrate 20. Among them, cooling fans 70 are respectively installed on both sides of the enclosed space of the first substrate 20 and the light-transmitting cover 60 in the second direction, and the wind directions of the two cooling fans 70 are the same, both facing the direction opposite to the second direction, that is, one cooling fan 70 blows air toward the light-emitting element 10, the light conductor 11 and the lens 30, and the other cooling fan 70 draws air from the position where the light-emitting element 10, the light conductor 11 and the lens 30 are disposed and blows it outward. Specifically, the two cooling fans 70 are both electrically connected to the first substrate 20.

[0072] It can be understood that the light-transmitting cover 60 and the first substrate 20 form a relatively closed space, in which the optical components are placed, and the material properties of the light-transmitting cover 60 are used to ensure the normal transmission of light while blocking the interference of the external environment on the internal components. Furthermore, a cooling fan 70 blows air into the optical system, and another one draws air from the optical system, forming a complete air convection cycle, in which hot air is drawn out and cold air is introduced, thereby achieving effective heat dissipation of the optical system.

[0073] The above examples are only used to further illustrate the technical content of the present invention, so that readers can understand it more easily, but they do not mean that the implementation of the present invention is limited to this. Any technical extension or re-creation made according to the present invention is protected by the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. An optical system, characterized in that: It includes a light-emitting element, a light conductor and a lens, wherein the light-emitting element and the light conductor are an integrated structure, the light-emitting element is used to emit light in a first direction, and the light conductor at least covers the light-emitting side of the light-emitting element in the first direction; the lens is arranged on the side of the light conductor facing the first direction; wherein a light diffusing agent is added to the molding material of the light conductor.

2. The optical system according to claim 1, characterized in that: The lens comprises a light incident side surface and a light emitting side surface, and a length of the light emitting side surface from the light incident side surface gradually decreases along the second direction.

3. The optical system according to claim 1, characterized in that: The thickness of the lens gradually decreases along the second direction.

4. The optical system according to claim 1, characterized in that: The distance between the lens and the light emitting element is in the range of [3mm, 15mm].

5. An optical system according to claim 1, characterized in that: The light diffuser includes one or more of silicon dioxide, polysiloxane particles, aluminum oxide, and borosilicate glass.

6. An optical system according to claim 1, characterized in that: The optical conductor includes a first curved surface structure, and the first curved surface structure is used to narrow the angle of light emitted by the light emitting element; the cross-sectional area of ​​the first curved surface structure along the first direction remains unchanged or gradually decreases.

7. An optical system according to claim 6, characterized in that: The first curved surface structure includes a first light guide portion disposed at an end of the first direction, and a cross-sectional area of ​​the first light guide portion gradually decreases along the first direction.

8. An optical system according to claim 6, characterized in that: The length of the first curved surface structure along the first direction is in the range of [1 mm, 20 mm]; And / or, a cross-sectional diameter of the first curved surface structure along the first direction is in the range of [2 mm, 50 mm].

9. An optical system according to claim 1, characterized in that: The optical conductor and the light emitting element are formed into an integrated structure by a molding process.

10. An optical system according to claim 1, characterized in that: The light emitting angle of the light emitting element is in the range of [90°, 130°]; And / or, the luminous angle of the light emitted by the light emitting element after passing through the optical waveguide is within the range of [30°, 60°].

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