Optical lens and lamp

Abstract

The utility model provides an optical lens and a lamp, and relates to the field of lighting appliances. The optical lens is provided with an optical axis, the optical lens comprises a light-in part and a light-out part which are connected with each other, the light-in part and the light-out part are sequentially arranged along the optical axis, the light-in part is used for converging light, and the light-out part comprises a first light-out surface and a second light-out surface. The first light-emitting surface is arranged on the side, away from the light-in part, of the light-emitting part, the optical axis penetrates through the first light-emitting surface, and light rays can form a first illumination range after being emitted through the first light-emitting surface. The second light-emitting surface faces the side deviating from the optical axis and is spaced from the optical axis, and light rays can form a second illumination range after being emitted through the second light-emitting surface. By arranging the optical lens, light of the lamp can be emitted from the first light-emitting surface and the second light-emitting surface at the same time to form a first illumination range and a second illumination range, the light-emitting range is relatively large, and two different light-emitting light effects can be formed.

Description

Technical Field

[0001] This application relates to the field of lighting fixtures, and more particularly to an optical lens and a lamp. Background Technology

[0002] With the continuous progress and development of the modern lighting industry, spatial lighting has become an indispensable part, and consumers and designers have diversified requirements for the light distribution of lighting fixtures. When existing lighting fixtures use optical lenses to emit light, the light usually comes out from the end face of the optical lens, resulting in a small light emission area and a single light emission effect. Utility Model Content

[0003] In view of this, embodiments of this application provide an optical lens and a lamp to solve the above-mentioned technical problems.

[0004] According to a first aspect of this application, an embodiment of this application provides an optical lens having an optical axis. The optical lens includes an incident light portion and an exiting light portion connected to each other, arranged sequentially along the optical axis, with the incident light portion used to converge light rays. The exiting light portion includes a first exiting surface and a second exiting surface, with the first exiting surface disposed on a side of the exiting light portion opposite to the incident light portion. The optical axis passes through the first exiting surface, and light rays emitted through the first exiting surface can form a first illumination range. The second exiting surface extends along the direction of the optical axis and is spaced from the optical axis, and light rays emitted through the second exiting surface can form a second illumination range, the second illumination range and the first illumination range at least partially not overlapping.

[0005] In some embodiments, the second light-emitting surface is the outer peripheral wall of the light-emitting part, and the second light-emitting surface surrounds the outer periphery of the optical axis.

[0006] In some embodiments, the first light-emitting surface is the end face of the light-emitting part that is opposite to the light-incident part. The optical lens also includes a mounting part, which is disposed between the first light-emitting surface and the second light-emitting surface. The mounting part is used to mount a light-shielding component.

[0007] In some embodiments, the first light-emitting surface is provided with a first optical microstructure for light mixing, the first optical microstructure including at least one of the following structures: bead structure, stripe structure.

[0008] In some embodiments, the first light-emitting surface includes an arc-shaped portion through which the optical axis passes, and the arc-shaped portion protrudes toward the side opposite to the light-incident portion.

[0009] In some embodiments, the first light-emitting surface further includes a connecting face that surrounds the outer periphery of the curved face.

[0010] In some embodiments, the connecting face is connected to the periphery of the curved face, the angle between the connecting face and the optical axis is acute, and the connecting face and the curved face together define the recessed structure.

[0011] In some embodiments, a light-incident groove is provided on the side of the light-incident section away from the light-outceasing section. The light-incident groove is used to accommodate the light source module, and the bottom wall of the light-incident groove is opposite to the first light-outceasing surface and protrudes in a direction away from the first light-outceasing surface.

[0012] In some embodiments, the light-incident portion further includes a reflective surface. The reflective surface is the outer peripheral wall of the light-incident portion and is adjacent to the second light-exiting surface. After some light rays enter the optical lens through the light-incident slot, they are reflected by the reflective surface to the first light-exiting surface.

[0013] In some embodiments, the reflective surface is provided with a second optical microstructure for reflecting light, the second optical microstructure including at least one of the following structures: stripe structure, scale structure.

[0014] In some implementations, the reflecting surface is a total reflection surface.

[0015] According to a second aspect of this application, an embodiment of this application provides a lighting fixture, which includes a light source module and an optical lens of any of the aforementioned types. The light source module is used to emit light, and the optical lens is located in the optical path of the light source module forming a pair.

[0016] Compared to existing technologies, this application provides an optical lens with an optical axis and an input and output light sections connected to each other. The input and output light sections are arranged sequentially along the optical axis, ensuring that light can enter from the input light section and exit from the output light section. In this embodiment, the light rays converged by the input light section are emitted directly from the first output light surface along the direction of the optical axis, forming a first output light area on the light receiving surface. This allows the light to be concentrated in a specific area, contributing to uniform and concentrated illumination. Furthermore, while maintaining a compact optical lens structure, the output light section also includes a second output light surface. The second output light surface extends along the direction of the optical axis and is spaced a certain distance from the optical axis, meaning the light rays exit at a certain angle, forming a second output light area on the light receiving surface. This helps to expand the illumination range and is suitable for wide-angle illumination, such as background lighting and ambient lighting. Furthermore, it improves light utilization and, in conjunction with the first output light surface, creates two different light emission effects. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the structure of a lamp provided in one embodiment of this application.

[0019] Figure 2 yes Figure 1 The diagram shows an exploded view of the lamp's structure.

[0020] Figure 3 yes Figure 1 A longitudinal cross-sectional structural schematic diagram of one embodiment of the optical lens of the lamp shown.

[0021] Figure 4 yes Figure 3 The diagram shows the optical path of the optical lens.

[0022] Figure 5 yes Figure 1 A longitudinal cross-sectional view of another embodiment of the optical lens of the lamp shown.

[0023] Figure 6 yes Figure 1 A longitudinal cross-sectional view of another embodiment of the optical lens of the lamp shown. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] It should be noted that when a component / part is said to be "fixed to" another component / part, it can be directly on the other component / part or there may be an intermediate component / part. When a component / part is considered to be "connected to" another component / part, it can be directly connected to the other component / part or there may be an intermediate component / part present; also, when a component / part is considered to be "connected to" another component / part, it can be integrally formed or assembled with the other component / part. When a component / part is considered to be "set on" another component / part, it can be directly set on the other component / part or there may be an intermediate component / part present.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please see Figure 1 This application provides a lamp 100 and an optical lens 10. In this embodiment, the lamp 100 is used to provide illumination or emit light to a light-receiving surface. The lamp 100 may include an optical lens 10, which is used to configure the light and enable the light to exit to the light-receiving surface or a specific illumination range. The illumination range can be understood as some illuminated areas on the light-receiving surface, or it can be understood as a spatial range. The optical lens 10 may include a first light-emitting surface 11 and a second light-emitting surface 12, through which the light is emitted to the light-receiving surface. The lamp 100 can be a lighting lamp or an ambient lamp. The light-receiving surface may include any one or more of the following, such as a ceiling, wall, floor, etc., and this embodiment does not specifically limit this.

[0028] As a specific installation example, the luminaire 100 can be a wall washer light. The luminaire 100 is mounted on the wall via hinges or brackets, allowing it to rotate relative to the wall. This means the orientation of the luminaire 100 can be freely adjusted, creating a larger lighting range and adapting to adjustable multi-angle lighting, thus improving its ease of use. Specifically, the luminaire 100 can be tilted relative to the wall, creating an angle between the optical axis O1 and the wall. In this case, the first light-emitting surface 11 can face the ceiling, while the second light-emitting surface 12 faces the wall, allowing the luminaire 100 to illuminate both the ceiling and the wall simultaneously. It can be understood that when the optical axis O1 is perpendicular to the mounting wall, the first light-emitting surface 11 can face the area in front of the wall, while the second light-emitting surface 12 faces both the ground and the ceiling, creating multi-directional lighting. Of course, the installation method and corresponding lighting effects of the luminaire 100 are not limited to the above example and can be configured according to actual needs.

[0029] Please see Figure 2 In this embodiment, the lamp 100 further includes a housing 101, which has an opening 102 and a receiving space 103. The receiving space 103 is used to accommodate components, such as optical lenses 10, heat sinks, and light source modules 20, and provides protection and storage for the optical components, light source modules 20, or other parts. The opening 102 connects the receiving space 103 to the outside, allowing emitted light to exit from the housing 101. The opening 102 can also be used to install lamp shades or other devices; this embodiment does not limit this use.

[0030] A light source module 20 is used to emit light and is disposed in a receiving space 103. An optical lens 10 is disposed in the light path formed by the light source module 20. The light source module 20 may include a light-emitting unit 21 and a circuit board 22. The circuit board 22 and the light-emitting unit 21 are electrically connected, and the circuit board 22 provides power to the light-emitting unit 21. In this embodiment, the optical lens 10 is connected to the circuit board 22 and covers the light-emitting unit 21, so that the light generated by the light-emitting unit 21 can be directly transmitted through the optical lens 10, thereby reducing light loss. The circuit board 22 is elongated, and the light-emitting unit 21 is detachably mounted on the circuit board 22. This embodiment does not limit the specific number or type of the light-emitting unit 21. For example, the number of light-emitting units 21 can be one or more, and the circuit board 22 can be a printed circuit board 22 or a flexible circuit board 22. The light-emitting unit 21 can be an incoherent light source or a coherent light source. It should be noted that when the light-emitting unit 21 is a laser light source, a diffusion structure needs to be provided between the optical lens 10 or the optical lens 10 and the light-emitting unit 21 to disperse the collimated light and form scattered light.

[0031] As an example, the light-emitting unit 21 is an incoherent light source, such as a halogen lamp, a UHP (ultra-high pressure mercury lamp), an UHE (ultra-high pressure mercury lamp), or an LED light source. Specifically, the light-emitting unit 21 can be an LED light source, which improves the efficiency of converting electrical energy into light energy, thereby reducing energy waste. At the same time, LED light sources generate less heat during illumination, thus contributing to energy conservation and environmental protection. Furthermore, LED light sources have a long lifespan and are safe, reducing damage to the human eye and decreasing the frequency of light source replacement, thereby lowering operating costs.

[0032] Please see Figure 3 In this embodiment, the optical lens 10 has an optical axis O1. The optical lens 10 includes an input light portion 13 and an output light portion 14 connected to each other. The input light portion 13 and the output light portion 14 are arranged sequentially along the optical axis O1. The input light portion 13 is used to introduce light. The output light portion 14 includes the aforementioned first output light surface 11 and second output light surface 12. The first output light surface 11 is disposed on the side of the output light portion 14 opposite to the input light portion 13. The optical axis O1 passes through the first output light surface 11, and the light emitted through the first output light surface 11 can form a first illumination range. Specifically, the optical axis O1 may have an angle with the normal of the first output light surface 11, or it may be perpendicular to the first output light surface 11. This embodiment does not impose a specific limitation on this. As an example, the optical axis O1 is perpendicular to the first output light surface 11. The second output light surface 12 extends along the direction of the optical axis O1 and is spaced apart from the optical axis O1. The light emitted through the second output light surface 12 can form a second illumination range.

[0033] By providing the aforementioned interconnected light-inlet section 13 and light-outlet section 14, it is ensured that light can enter from the light-inlet section 13 and exit from the light-outlet section 14. In this embodiment, the light rays converged by the light-inlet section 13 are emitted directly from the first light-outlet surface 11 along the optical axis O1, forming a first illumination range. This allows the light to be concentrated in a specific area, contributing to uniform and concentrated illumination. Furthermore, while ensuring a compact structure for the optical lens 10, the light-outlet section 14 is also provided with a second light-outlet surface 12. The second light-outlet surface 12 is arranged along the optical axis O1 and spaced a certain distance from the optical axis O1, meaning the light rays exit at a certain angle, forming a second illumination range. The second illumination range and the first illumination range at least partially do not overlap. This helps to expand the illumination range and is suitable for wide-angle illumination, such as background lighting and ambient lighting. On the other hand, it improves the utilization rate of light and, in conjunction with the first light-outlet surface 11, creates two different light-out effects.

[0034] The specific structure of the optical lens 10 will be described in detail below.

[0035] As an example, the optical lens 10 is specifically a total internal reflection (TIR) ​​lens, which can precisely control the direction of light propagation, allowing the light to be distributed according to a designed shape and angle. A TIR lens typically has an entrance portion 13 and an exit portion 14 connected to each other. There may be no clear boundary between the exit portion 14 and the entrance portion 13, allowing the optical lens 10 to control the path of light as a whole, maintaining the continuity of light propagation, reducing light loss, and improving light extraction efficiency.

[0036] Please see Figure 3 and Figure 4 In this embodiment, the light-incident section 13 and the light-exiting section 14 are arranged sequentially along the optical axis O1 of the optical lens 10. The light-incident section 13 is used to converge light rays. It is connected to the circuit board 22 to facilitate the fixing of the optical lens 10 and to allow the light rays generated by the light source module 20 to enter the light-exiting section 14 with a shorter path, thereby reducing light energy loss. Specifically, the light-incident section 13 has an incident surface 131. The light rays generated by the light source module 20 enter the interior of the optical lens 10 through the incident surface 131. The incident surface 131 may be defined by the wall of the light-incident groove 1311. As an example, the light-incident section 13 is provided with a light-incident groove 1311, which is located on the side of the optical lens 10 opposite to the light-exiting section 14. The light-incident groove 1311 is used to accommodate the light source module 20. The incident surface 131 is the bottom wall of the light inlet groove 1311. When the light source module 20 is installed in the lamp 100, the light source module 20 is at least partially housed in the light inlet groove 1311. The bottom wall of the groove is opposite to the first light emitting surface and protrudes in a direction away from the first light emitting surface, so that the emitted light generated by the light-emitting unit 21 can be concentrated in the light inlet groove 1311, thereby improving the light utilization rate.

[0037] The bottom wall (i.e., incident surface 131) of the light entrance slot 1311 specifically includes a top wall 1312 and a peripheral wall 1313. The top wall 1312 is located at the top of the light entrance slot 1311 and is a curved surface recessed towards the light emitting part 14 to collect most of the light emitted by the light-emitting unit 21. The peripheral wall 1313 is arranged around the periphery of the top wall 1312. The top wall 1312 is used to collect part of the light from the light-emitting unit 21, specifically light that is approximately perpendicular to the optical axis O1. After the light enters the optical lens 10 through the top wall 1312 and the peripheral wall 1313, it is emitted through the first light emitting surface 11 and the second light emitting surface 12. In this embodiment, the top wall 1312 protrudes towards the light-emitting unit 21, and the peripheral walls 1313 on both sides of the top wall 1312 are curved surfaces facing the circuit board 22. By setting the top wall 1312 and the peripheral wall 1313, the emitted light from the light-emitting unit 21 can be collected from various angles, improving the uniformity of light emission and creating more light emission angles. It can be understood that the top wall 1312 acts as a focusing lens, converging the light and focusing most of the light from the light-emitting unit 21 within a specific area of ​​the light-emitting section 14 (i.e., the first light-emitting surface 11). This allows for the formation of a brighter first illumination area on the light-receiving surface, improving the light emission effect.

[0038] In some embodiments, the center point of the top wall 1312 of the light inlet groove 1311 is directly opposite the light-emitting unit 21, and there is a protrusion at the center point facing the light-emitting unit 21, while the two sides of the protrusion are curved surfaces facing the circuit board 22, so that the top wall 1312 is approximately C-shaped. This embodiment does not impose specific limitations on the distance between the light inlet groove 1311 and the light source module 20. It can be understood that the distance between the light inlet groove 1311 and the light-emitting unit 21 can be small, so that the structure of the light inlet part 13 can be compact, thereby reducing the volume of the optical lens 10, making the lamp 100 suitable for a smaller installation area and applicable to more usage scenarios; on the other hand, it is convenient to shorten the light output path of the light-emitting unit 21, and improve the light output brightness and light output efficiency.

[0039] In this embodiment, the light-incident section 13 further includes a reflective surface 132, which is connected between the peripheral wall 1313 and the second light-emitting surface 12. The reflective surface 132 reflects light incident through the peripheral wall 1313 to the first light-emitting surface 11, thereby improving light utilization and further increasing the brightness of the first illumination range. In this embodiment, the reflective surface 132 is an arc surface, with the concave direction facing the side where the light-emitting unit 21 is located; that is, the reflective surface 132 is a convex surface forming the outer contour of the optical lens 10. The arc surface can be a sphere, a quasi-spherical surface, an ellipsoid, a freeform surface, or other aspherical surface; this embodiment does not limit this. The arc surface allows multiple beams of light generated by the light-emitting unit 21 that are incident through the peripheral wall 1313 to be reflected by different areas of the reflective surface 132 to different positions on the first light-emitting surface 11, thereby forming a light beam with a relatively uniform brightness distribution at the first light-emitting surface 11 and increasing the light emission range of the lamp 100. In addition, the curved surface also has a light-focusing effect, which can concentrate the light generated by the light-emitting unit 21 onto the reflective surface 132, thereby improving the light utilization rate. In some other embodiments, the reflective surface 132 may also be composed of multiple curved surface segments connected together. The radii of curvature of adjacent curved surface segments may be the same or different, so that surface segments at different positions can reflect the received light to different areas of the first light-emitting surface 11, thereby increasing the light-emitting range and light-emitting effect.

[0040] In other embodiments, the reflective surface 132 may also be a plane or composed of multiple connecting surface segments. As an example, the reflective surface 132 is a plane, which is inclined relative to the optical axis O1 of the optical lens 10, so that part of the light generated by the light-emitting unit 21 can be reflected by the reflective surface 132 to the first light-emitting surface 11, thereby increasing the brightness and light emission effect of the lamp 100 on the first light-emitting surface 11. This embodiment does not impose a specific limitation on the included angle between the reflective surface 132 and the optical axis O1, for example, it can be 15°, 30°, 45°, 60°, etc., and can be set according to actual application requirements to obtain different light emission effects.

[0041] As another example, the reflective surface 132 includes multiple planar segments connected in sequence. The multiple planar segments are connected sequentially along the light emission direction. Adjacent two planar segments are arranged at an angle (the angle between them is less than 180°), so that planar segments at different positions can receive light emitted from the light-emitting unit 21 at different angles, thereby increasing the light emission range and brightness of the first light-emitting surface 11, and ensuring that all light incident on the planar segments is reflected, thus guaranteeing the reflectivity of the reflective surface.

[0042] In some embodiments, a second optical microstructure 1321 may be provided on the reflective surface 132. The second optical microstructure 1321 is used to improve the reflection efficiency of the reflective surface 132. The second optical microstructure 1321 is also used to change the reflection direction of light and carry a textured shape to form different light emission effects. Specifically, the second optical microstructure 1321 may include at least one structure selected from stripe structure, scale-like structure, and corrugated structure. As an example, the second optical microstructure 1321 is a scale-like structure, roughly scale-shaped. When light from different optical paths passes through the reflective surface 132, it can be reflected to the first light-emitting surface 11 under the action of the second optical microstructure 1321. In addition, when the light-emitting unit 21 can generate light of multiple different colors, the second optical microstructure 1321 is also used to fully mix the light to avoid color difference or layering of the emitted light, thereby achieving a good light emission effect.

[0043] It should be noted that the second optical microstructure 1321 can be at least partially disposed on the reflective surface 132 or can be distributed all over the reflective surface 132. The specific shape and size of the second optical microstructure 1321 disposed in different areas of the reflective surface 132 can be the same or different, and this embodiment does not impose specific limitations on this. As an example, the reflective surface 132 has a striped structure on the side near the first light-emitting surface 11, and a scale structure on the side of the reflective surface 132 near the circuit board 22. The wavy structure can be disposed between the striped structure and the scale structure, so that light propagating to different areas of the reflective surface 132 can carry different texture information or form different reflection speeds, thereby forming a variety of different light-emitting effects on the first light-emitting surface 11.

[0044] In other embodiments, to further improve light utilization, the reflecting surface 132 is a total internal reflection surface, used to cause total internal reflection of light. Specifically, the optical lens 10 has a refractive index greater than 1, and the angle of incidence of light exiting the optical lens 10 onto the reflecting surface 132 is greater than the critical angle at which the outgoing light is reflected from the reflecting surface 132 to the outside air, so that total internal reflection occurs on the reflecting surface 132, thereby improving light utilization and reflection efficiency. The aforementioned "critical angle" should be understood as the angle of incidence corresponding to a refraction angle of 90° when light enters a less optically denser medium from an optically less dense medium. Simultaneously, an anti-reflection coating can be provided on the reflecting surface 132 to enhance the total internal reflection effect.

[0045] In this embodiment, the light-emitting section 14 is a structure in the optical lens 10 used for emitting light. It is disposed on the side opposite to the light-incident section 13 and is directed toward the light-receiving surface. The light-emitting section 14 includes the aforementioned first light-emitting surface 11 and second light-emitting surface 12. Light rays incident through the light-incident section 13 are emitted through the first light-emitting surface 11 and the second light-emitting surface 12, respectively forming a first illumination range and a second illumination range. The first illumination range and the second illumination range do not overlap at least partially, thereby enabling the lamp 100 to form a large illumination range. The first illumination range and the second illumination range may be completely separated from each other or partially separated; this embodiment is symmetrical and not limited.

[0046] In this embodiment, the first light-emitting surface 11 is disposed on the side of the light-emitting portion 14 away from the light-receiving portion 13. The optical axis O1 passes through the first light-emitting surface 11, and the first light-emitting surface 11 correspondingly forms a first illumination range. The second light-emitting surface 12 is spaced apart from the optical axis O1, specifically it can be disposed parallel to the optical axis O1 and facing the side away from the optical axis O1, and the second light-emitting surface 12 correspondingly forms a second illumination range. Part of the light is emitted directly from the first light-emitting surface 11 along the optical axis O1, while another part of the light is deviated from the optical axis O1 and emitted from the second light-emitting surface 12, which can provide illumination light or ambient light in two different directions on the light receiving surface, thereby forming two different light emission effects. Specifically, when the lamp 100 is installed on the wall, the first light-emitting surface 11 can be disposed facing the ceiling, and the second light-emitting surface 12 can be disposed parallel to the wall, so that the lamp 100 can simultaneously project light onto the ceiling and the wall, which can improve the light emission brightness and form two light emission effects.

[0047] In this embodiment, the second light-emitting surface 12 can specifically be the outer peripheral wall of the light-emitting part 14, which can surround the outer periphery of the optical axis O1. The first light-emitting surface 11 is the end face of the light-emitting part 14 that faces away from the light-incident part 13, so that the second light-emitting surface 12 is arranged approximately perpendicular to the first light-emitting surface 11, forming a ring-shaped illumination effect. That is, the second illumination area is arranged around the first illumination area, which can achieve 360° all-round light emission and further improve the illumination range. It should be noted that the second light-emitting surface 12 can be the closed ring surface mentioned above, or it can be an open surface segment. For example, the second light-emitting surface 12 can be a plurality of spaced surface segments, which are arranged along the circumference of the optical lens 10. Of course, the second light-emitting surface 12 can also be a single surface segment, and this embodiment does not impose a specific limitation on this.

[0048] To further improve the light emission effect, in this embodiment, the light emission area of ​​the first light-emitting surface 11 is larger than that of the second light-emitting surface 12. Since the first light-emitting surface 11 is directly opposite the light-emitting unit 21 and perpendicular to the optical axis O1, the first illumination range forms the main illumination area, and the second illumination range forms the secondary illumination area. At this time, the first illumination range can be used for concentrated light emission, while the second illumination range can be used for ambient or environmental light emission, which can increase the sense of layering between different illumination areas and further improve the lighting effect. It is understood that the light emission area of ​​the first light-emitting surface 11 can also be less than or equal to the light emission area of ​​the second light-emitting surface 12; this embodiment does not impose specific limitations on this.

[0049] In some embodiments, a first optical microstructure 111 is provided on the first light-emitting surface 11. The first optical microstructure 111 is used for light mixing to improve the uniformity of the emitted light. Specifically, the first optical microstructure 111 may include at least one structure such as a striped structure or a beaded structure. As an example, the first optical microstructure 111 is a beaded structure, which is approximately hexagonal in shape. When light rays from different optical paths pass through the first light-emitting surface 11, they are mixed under the action of the first optical microstructure 111 and emitted to the light-receiving surface. In addition, the first optical microstructure 111 is also used to reflect part of the light rays. The part of the light rays reflected by the first optical microstructure 111 is compensated to the second light-emitting surface 12 to improve the brightness of the second light-emitting surface 12. In some embodiments, the first optical microstructure may also be other structures used for light mixing, and this embodiment does not impose specific limitations on this.

[0050] In other embodiments, a third optical microstructure (not shown in the figure) may also be provided on the second light-emitting surface 12 to improve the uniformity of light emitted through the second light-emitting surface 12. The third optical microstructure may include at least one structure such as a striped structure or a beaded structure. The third optical microstructure may be the same as or different from the first optical microstructure 111. This embodiment does not impose specific limitations on this.

[0051] It should be noted that the first optical microstructure 111 and / or the second optical microstructure 1321 can be at least disposed on a corresponding portion of the first light-emitting surface 11 and / or the second light-emitting surface 12, or they can be distributed all over the first light-emitting surface 11 and / or the second light-emitting surface 12. The specific shape and size of the first optical microstructure 111 and the third optical microstructure disposed in different areas of the first light-emitting surface 11 and / or the second light-emitting surface 12 can be the same or different, and this embodiment does not impose specific limitations on this. By setting different optical microstructures in different areas, light can carry different texture information or form different reflection speeds when it propagates to different areas, thereby forming a variety of light-emitting effects on the light-receiving surface.

[0052] In this embodiment, the light-emitting portion 14 is generally an annular or circular surface to match the shape of the housing 101. The first light-emitting surface 11 can be a plane or a curved surface; this embodiment does not impose specific limitations on this. Please refer to... Figure 5 As an example, the first light-emitting surface 11 includes an arcuate portion 112. The arcuate portion 112 is used to focus light to improve the brightness of the emitted light, to scatter light to increase the light emission range, or to shape the light beam to achieve a specific lighting effect. There is one arcuate portion 112, and the periphery of the second light-emitting surface 12 is connected to the arcuate portion 112 to form the outer contour of the light-emitting section 14. The arcuate portion 112 can be a concave surface recessed relative to the light-incident section 13 or a convex surface relative to the light-incident section 13; this embodiment does not impose a specific limitation on this. By providing the arcuate portion 112, the converging or diffusing effect of light is improved, causing the light emitted through the arcuate portion 112 to undergo a slight deflection on the surface of the arcuate portion 112, forming a larger light emission range. In other embodiments, there can be multiple arcuate portions 112, which are sequentially arranged and connected to form the first light-emitting surface 11. The curvature of adjacent arcuate portions 112 can be the same or different, so that light can be emitted to different positions on the light-receiving surface via different arcuate portions 112, thereby increasing the light emission range.

[0053] Please refer to it again. Figure 3 and Figure 4 As another example, the first light-emitting surface 11 may include connecting faces 113, which are generally planar to maintain the consistency of light propagation and reduce light distortion. The number of connecting faces 113 can be one or more; this embodiment does not impose a specific limitation. For example, the periphery of one connecting face 113 is connected to the second light-emitting surface 12 to form the outer contour of the light-emitting portion 14. As another example, multiple connecting faces 113 are sequentially connected to form the first light-emitting surface 11, with an included angle between adjacent connecting faces 113. Thus, the first light-emitting surface 11 formed by connecting multiple connecting faces 113 is generally serrated, allowing light to exit through different connecting faces 113 and reach different positions on the light-receiving surface, thereby increasing the light emission range.

[0054] Please see Figure 6As another example, the first light-emitting surface 11 may also include a connecting surface 113 and an arcuate surface 112. Specifically, the arcuate surface 112 is located at the center of the first light-emitting surface 11, the optical axis O1 passes through the arcuate surface 112, and the arcuate surface 112 protrudes towards the side opposite to the light-incident portion 13. By providing the aforementioned arcuate surface 112, the focusing ability of the light can be enhanced. Since the optical axis O1 passes through the arcuate surface 112, it helps the light to produce continuous refraction when passing through the light-emitting portion 14, allowing the light to be more concentrated towards a specific area. The connecting surface 113 surrounds the outer periphery of the arcuate surface 112. In this case, the connecting surface 113 helps to stabilize and distribute the light focused by the arcuate surface 112, providing a uniform light distribution and reducing the problem of uneven light or light spot caused by curved surface focusing. The connecting surface 113 may be connected to the arcuate surface 112 or spaced apart from the arcuate surface 112; this embodiment does not impose specific limitations on this.

[0055] Furthermore, to reduce the overall volume of the optical lens 10, in some embodiments, the connecting face 113 may also be inclined relative to the curved face 112. Specifically, the connecting face 113 may be generally curved, specifically a conical surface or a truncated ring (e.g., a conical shape) surrounding the outer periphery of the curved face 112, with the truncated ring having a recessed portion facing the curved face 112. The connecting face 113 is connected to the periphery of the curved face 112. When the optical lens is sectioned along the optical axis O1, the angle between the straight line containing the cross-sectional profile of the connecting face 113 and the optical axis O1 in the longitudinal section along the optical axis O1 is an acute angle, thereby the connecting face 113 and the end of the curved face 112 on the light-emitting portion 14 away from the light-incident portion 13 jointly define the recessed structure. The recessed structure reduces the volume occupied by the inclined connecting face 113 relative to the horizontally positioned connecting face 113. At the same time, the recessed structure further enhances the directionality of light, making light more inclined to propagate along the curved face 112. This embodiment does not limit the specific angle between the face 113 and the optical axis O1. It can be 20°, 25°, 30°, 45°, etc., and can be set according to actual usage requirements.

[0056] Please refer to it again. Figure 2In some embodiments, to create a clear interval between the first illumination range and the second illumination range, thereby increasing the sense of layering in the light emission effect, the optical lens 10 further includes a mounting portion 30 for mounting a light-shielding member. The mounting portion 30 is disposed between the first light-emitting surface 11 and the second light-emitting surface 12. It is used to restrict light propagation between the first light-emitting surface 11 and the second light-emitting surface 12 by mounting the light-shielding member, thereby preventing the first illumination range and the second illumination range from overlapping and improving the clarity of the first illumination range and the second illumination range. Simultaneously, the mounting portion 30 and the light-shielding member also help to form specific light patterns, such as confining the bright spot formed by the second light-emitting surface 12 to the periphery of the optical lens 10, and cooperating with the bright spot formed by the first illumination to form a main illumination area and a secondary illumination area, further improving the light emission effect. In this embodiment, the mounting portion 30 is disposed at the connection between the first light-emitting surface 11 and the second light-emitting surface 12, so that the mounted light-shielding member can space the first light-emitting surface and the second light-emitting surface. This embodiment does not limit the specific structure of the mounting portion. As an example, the mounting portion 30 may be arranged in a ring shape to match the contour of the optical lens 10, and a light-shielding member may be attached to the mounting portion. For example, the light-shielding member may be a light-shielding paper that adheres to the surface of the mounting portion. As another example, the mounting portion may be a ring-shaped groove structure, and the light-shielding member may be a ring-shaped light-shielding structure that matches the mounting portion, so that the light-shielding member can be embedded in the groove structure to form an integral part with the optical lens. It is understood that the light-shielding member 30 may also be other structures used to separate the first light-emitting surface 11 and the second light-emitting surface 12, and this embodiment does not impose specific limitations on them.

[0057] In summary, this application provides an optical lens 10, which has an optical axis O1 and a light-incident portion 13 and a light-exit portion 14 connected to each other. The light-incident portion 13 and the light-exit portion 14 are arranged sequentially along the optical axis O1, ensuring that light can enter from the light-incident portion 13 and exit from the light-exit portion 14. In this embodiment, the light rays converged by the light-incident portion 13 are emitted directly from the first light-exiting surface 11 along the direction of the optical axis O1 and form a first illumination range, allowing the light to be concentrated in a specific area, which helps to achieve uniform and concentrated illumination. Furthermore, while ensuring the compact structure of the optical lens 10, the light-exiting portion 14 is also provided with a second light-exiting surface 12. The second light-exiting surface 12 extends along the direction of the optical axis O1 and is spaced a certain distance from the optical axis O1, that is, the light rays are emitted at a certain angle and form a second illumination range. The second illumination range and the first illumination range do not overlap at least partially. This helps to expand the illumination range and is suitable for wide-angle illumination, such as background lighting and ambient lighting. On the other hand, it can improve the utilization rate of light and work in conjunction with the first light-emitting surface 11 to form two different light-emitting effects.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An optical lens, characterized in that, The optical lens has an optical axis and includes an input light portion and an output light portion connected to each other. The input light portion and the output light portion are arranged sequentially along the optical axis. The input light portion is used to converge light rays, and the output light portion includes: A first light-emitting surface is disposed on the side of the light-emitting portion opposite to the light-incident portion; the optical axis passes through the first light-emitting surface, and light rays emitted through the first light-emitting surface can form a first illumination range; and The second light-emitting surface extends along the direction of the optical axis and is spaced apart from the optical axis; light emitted through the second light-emitting surface can form a second illumination range, and the second illumination range and the first illumination range do not overlap at least partially.

2. The optical lens as described in claim 1, characterized in that, The second light-emitting surface is the outer peripheral wall of the light-emitting part, and the second light-emitting surface surrounds the outer periphery of the optical axis.

3. The optical lens as described in claim 2, characterized in that, The first light-emitting surface is the end face of the light-emitting part that is opposite to the light-incident part. The optical lens also includes a mounting part, which is disposed between the first light-emitting surface and the second light-emitting surface. The mounting part is used to mount a light-shielding component.

4. The optical lens as described in claim 1, characterized in that, The first light-emitting surface is provided with a first optical microstructure for light mixing, and the first optical microstructure includes at least one of the following structures: bead structure and stripe structure.

5. The optical lens as described in claim 1, characterized in that, The first light-emitting surface includes an arc-shaped portion, through which the optical axis passes, and the arc-shaped portion protrudes toward the side opposite to the light-incident portion.

6. The optical lens as described in claim 5, characterized in that, The first light-emitting surface also includes a connecting face.

7. The optical lens as described in claim 6, characterized in that, The connecting facet is connected to the periphery of the curved facet; when the optical lens is sectioned along the optical axis, the straight line containing the cross-sectional profile of the connecting facet forms an acute angle with the optical axis, and the connecting facet and the curved facet together form a concave structure.

8. The optical lens according to any one of claims 1 to 7, characterized in that, The light-inlet section has a light-inlet groove on the side opposite to the light-outlet section, and the light-inlet groove is used to accommodate the light source module; the bottom wall of the light-inlet groove is opposite to the first light-outlet surface and protrudes in the direction away from the first light-outlet surface.

9. The optical lens as described in claim 8, characterized in that, The light-incident portion further includes a reflective surface, which is the outer peripheral wall of the light-incident portion and is adjacent to the second light-outceasing surface. Part of the light rays are incident into the optical lens through the light-incident groove and then reflected by the reflective surface to the first light-outceasing surface.

10. The optical lens as claimed in claim 9, characterized in that, The reflective surface is provided with a second optical microstructure for reflecting light, the second optical microstructure including at least one of the following structures: stripe structure, scale structure; Alternatively, the reflecting surface may be a total reflection surface.

11. A lamp, characterized in that, include: The light source module is used to emit light. The optical lens as described in any one of claims 1 to 10; The optical lens is located on the optical path formed by the light source module.

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