Optical assembly and lamp
By designing optical components for light guides and light emitters, and combining them with light-transmitting covers and reflective surfaces, the problems of small light-emitting area and limited light output of lamps have been solved, resulting in compact lamp structure and diverse light output effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN INTELLIROCKS TECH CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-01
AI Technical Summary
Existing lighting fixtures, when using optical lenses to emit light, have a small light-emitting area and a limited range of light output effects, which cannot meet diverse lighting needs.
Design an optical component including a light guide and a light emitter, which are arranged sequentially along the optical axis. The light emitter has first and second light emitting parts from which light can be emitted. Combined with a light-transmitting cover, a reflective surface and a light-diffusing structure, it ensures effective light propagation and expands the light emission range.
This achieves a compact structure for optical components, reducing the size and weight of the lamp body, enabling it to adapt to various light output needs and scenarios, and improving the flexibility and light output effect of the lamp.
Smart Images
Figure CN224188454U_ABST
Abstract
Description
Optical components and lighting fixtures Technical Field
[0001] This application relates to the field of lighting fixtures, and more particularly to an optical component and a luminaire. 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, they often have a single light-emitting section. The light usually exits from the end face of the optical lens, resulting in a small light-emitting area and a single light emission effect. Summary of the Invention
[0003] In view of this, embodiments of this application provide an optical component 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 component applied to a lamp having a light source module. The optical component has an optical axis and includes a light guide and a light emitting component, which are sequentially arranged along the optical axis. The light emitting component has an incident light side, through which light is transmitted to the light emitting component. The light emitting component includes a first light emitting portion and a second light emitting portion, with the optical axis passing through the first light emitting portion. The second light emitting portion extends along the direction of the optical axis and is spaced apart from it. The light guide is disposed between the incident light side and the light source module, guiding light to the light emitting component and then emitting it through the first and second light emitting portions.
[0005] In some embodiments, the second light-emitting part is the outer peripheral wall surface of the light-emitting element, and the second light-emitting part surrounds the outer periphery of the optical axis.
[0006] In some embodiments, the light-emitting element is provided with a light-transmitting hole, the axis of which is parallel to or coincides with the optical axis, and the first light-emitting part is located at one end of the light-transmitting hole.
[0007] In some embodiments, the optical component further includes a light-transmitting cover disposed on the side of the light-emitting element opposite to the light guide element. The light-transmitting cover includes a light-shielding portion and a light-transmitting portion. The light-shielding portion surrounds the outer periphery of the light-transmitting portion and is disposed between the second light-emitting portion and the first light-emitting portion. The light-transmitting portion and the first light-emitting portion are opposite to each other to allow light emitted through the first light-emitting portion to be emitted to the light-receiving surface. The light-transmitting portion is a light-transmitting solid or a through hole.
[0008] In some embodiments, the light guide is an optical lens, and the light-incident side of the optical lens has a light-incident cavity for accommodating the light source module. After the light from the light source module enters the interior of the optical lens through the light-incident cavity, it is emitted through the first light-emitting part and the second light-emitting part.
[0009] In some embodiments, the optical lens further includes a first reflecting surface, which is the outer peripheral wall of the optical lens. After some light rays enter the interior of the optical lens through the light entrance cavity, they are reflected by the first reflecting surface to the light entrance side.
[0010] In some embodiments, the light guide includes a reflector and a light guide plate, with the reflector and light guide arranged sequentially along the optical axis, and the light guide plate located between the light-incident side and the reflector. The reflector has a mixing cavity for accommodating the light source module. The reflector also includes a second reflective surface, which forms the sidewall of the mixing cavity, and some of the light from the light source module is reflected to the light-incident side via the second reflective surface.
[0011] In some embodiments, the optical component further includes a light diffusion structure disposed between the light guide and the light emitting component. The light diffusion structure allows a portion of the light emitted via the incident light side to diffuse to the first light emitting part and the second light emitting part.
[0012] In some embodiments, the light diffusion structure includes a diffuser sheet stacked on the incident light side.
[0013] In some embodiments, the light diffusion structure includes an optical microstructure disposed on the light-incident side and / or on the side of the light guide facing the light-incident side.
[0014] 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 component of any of the aforementioned methods. The light source module is used to emit light, and the optical component is located in the optical path of the light source module forming a pair.
[0015] Compared to existing technologies, this application provides an optical component with an optical axis. The light guide and light emitter of the optical component are sequentially arranged along the optical axis, ensuring that light can effectively propagate from the light guide to the light emitter and making the entire optical component compact, thus reducing the size and weight of the luminaire. In this embodiment, the light emitter includes a first light emitter and a second light emitter, allowing light to be emitted from both to expand the light emission range. Furthermore, the optical axis passes through the first light emitter, and the second light emitter extends along the direction of the optical axis and is spaced apart from it. This means that light can be emitted in two different directions, allowing the luminaire to adapt to various light emission needs and scenarios, such as concentrated or uniform light emission, improving the flexibility and light emission effect of the luminaire. Attached Figure Description
[0016] 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.
[0017] Figure 1 is a schematic diagram of the structure of a lamp provided in an embodiment of this application.
[0018] Figure 2 is an exploded view of the structure of the lamp shown in Figure 1.
[0019] Figure 3 is a longitudinal cross-sectional structural schematic diagram of one embodiment of the optical lens of the lamp shown in Figure 1.
[0020] Figure 4 is a schematic diagram of the optical path of the optical lens shown in Figure 3.
[0021] Figure 5 is a longitudinal cross-sectional structural schematic diagram of another embodiment of the optical lens of the lamp shown in Figure 1. Detailed Implementation
[0022] 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.
[0023] 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.
[0024] 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.
[0025] Please refer to Figure 1. This application provides a lamp 100. In this embodiment, the lamp 100 is used to provide illumination or emit light towards a light-receiving surface. It may include an optical component 10, which is used to configure the light and enable the light to be emitted to the outside. The lamp 100 can be a lighting lamp or an ambient lamp. The lamp 100 can project light onto a ceiling, wall, floor, etc., and this embodiment does not impose specific limitations on this. As a specific installation example, the lamp 100 is a wall washer lamp. The lamp 100 is mounted on the wall via hinges or brackets and can emit light towards the ceiling and wall.
[0026] Referring to Figures 1 and 2, in this embodiment, the lamp 100 further includes a housing 101, which has an opening 1102 and a receiving space 103. The receiving space 103 is used to accommodate components, such as optical components 10, heat sinks, and light source modules 20, and provides protection and storage for the optical components 10, light source modules 20, or other components. The opening 1102 connects the receiving space 103 to the outside, allowing emitted light to exit from the housing 101. The opening 1102 can also be used to install lamp shades or other devices; this embodiment does not limit this use.
[0027] A light source module 20, used to emit light, is disposed in a receiving space 103. An optical component 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 is electrically connected to the light-emitting unit 21 and provides power to the light-emitting unit 21. In this embodiment, the optical component 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 component 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 or a flexible circuit board. 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, the optical component 10 needs to be provided with a diffusion structure to disperse the collimated light into scattered light.
[0028] 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), a 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, thus reducing energy waste. At the same time, LED light sources generate less heat during illumination, 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.
[0029] In this embodiment, the optical component 10 has an optical axis O1. The optical component 10 includes a light guide 11 and a light emitting component 12, which are arranged sequentially along the optical axis O1. The light guide 11 has a first light emitting side 1102 and a first light incident side 1101 that are opposite to each other. The first light incident side 1101 is used to face the light source module 20, and the first light emitting side 1101 is used to be adjacent to the light emitting component 12 so that light can be transmitted from the light guide 11 to the light emitting component 12. In this embodiment, the light emitting component 12 has a light incident side 1201, which is adjacent to the first light emitting side 1102. The light incident side 1201 can specifically be the surface of the light emitting component 12 facing the light guide 11. In this embodiment, the light emitting component 12 includes a first light emitting portion 111 through which the optical axis O1 passes. Part of the light from the light source module 20 is transmitted through the first light emitting portion 111 to form a first illumination range. The optical axis O1 can be at an angle to the normal of the first light-emitting part 111, or it can be perpendicular to the first light-emitting part 111. This embodiment does not impose any specific limitations on this. As an example, the optical axis O1 is perpendicular to the first light-emitting part 111. The light-emitting member 12 includes a second light-emitting part 121, which is arranged along the extension direction of the optical axis O1 and spaced apart from the optical axis O1. Part of the light from the light source module 20 is emitted through the second light-emitting part 121 and forms a second illumination range. The first illumination range and the second illumination range do not overlap at least partially, so that the lamp 100 can form a larger illumination range. The first illumination range and the second illumination range can be completely separated from each other or partially separated. This embodiment does not impose any limitations on this.
[0030] By setting the light guide 11 and light emitter 12 sequentially as described above, it is ensured that light can effectively propagate from the light guide 11 to the light emitter 12, and the entire optical assembly 10 has a compact structure, which helps to reduce the size and weight of the lamp 100. In this embodiment, the light emitter 12 includes a first light emitter 111 and a second light emitter 121. The light emitted from the first light emitter 111 and the second light emitter 121 can expand the light emission range. Furthermore, the optical axis O1 passes through the first light emitter 111, and the second light emitter 121 extends along the direction of the optical axis O1 and is spaced apart from the optical axis O1. That is, the light can be emitted in two different directions, so that the lamp 100 can adapt to various light emission needs and scenarios, such as concentrated light emission or uniform light emission, which can improve the flexibility of use and the light emission effect of the lamp 100.
[0031] The specific composition and structure of the optical component 10 will be introduced one by one in the following sections.
[0032] Referring to Figures 2 and 3, in this embodiment, the light guide 11 and the light emitter 12 are arranged sequentially along the optical axis O1 of the optical assembly 10. The optical axis O1 is the main direction of light propagation, and it can coincide with the center line of symmetry of either the light guide 11 or the light emitter 12. In this embodiment, the light emitter 12 is stacked on top of the light guide 11 and is coaxially arranged with it. The optical axis O1 passes through both the light emitter 12 and the light guide 11 and coincides with the center line of symmetry of both.
[0033] The light guide 11 is used to converge light and conduct it to the light emitting element 12. The light guide 11 has a first light-incident side 1101 and a first light-emitting side 1102 facing away from each other. The first light-incident side 1101 is located on the side of the light guide 11 opposite to the light source module 20, and it is used to receive light from the light source module 20. The first light-emitting side 1102 is disposed on the side of the light guide 11 facing the light emitting element 12, that is, the first light-emitting side 1102 is close to the light-incident side 1201 of the light emitting element 12, and it is used to conduct the light in the light guide 11 to the light emitting element 12. The light guide 11 is connected to the circuit board 22 to fix the optical component 10 so that the light generated by the light source module 20 can enter the light emitting element 12 with a shorter path to reduce light energy loss. The specific structure of the light guide 11 can be a reflector or an optical lens, and this embodiment does not impose specific limitations.
[0034] As an example, the light guide 11 can be an optical lens 112, specifically a total internal reflection (TIR) lens, which can precisely control the propagation direction of light, allowing the light to be distributed according to a designed shape and angle. The optical lens 112 has an incident surface 113 and an incident cavity 1131. Light generated by the light source module 20 enters the interior of the optical lens 112 via the incident surface 113, which is defined by the inner wall of the incident cavity 1131. The incident cavity 1131 is located on the side of the optical lens 112 opposite to the light emitting element 12, and is used to accommodate the light source module 20. The incident surface 113 is the inner wall surface of the light-incident cavity 1131. 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-incident cavity 1131, so that the emitted light generated by the light-emitting unit 21 can be concentrated in the light-incident cavity 1131 and emitted from the first light-emitting part 111 and the second light-emitting part 121 with a shorter path, thereby improving the light utilization rate and emission efficiency.
[0035] Please refer to Figures 3 and 4. The inner wall surface (i.e., incident surface 113) of the light-incident cavity 1131 includes a top wall 1132 and a peripheral wall 1133. The top wall 1132 is located at the top of the light-incident cavity 1131 and is a curved surface protruding towards the light source module 20 to collect most of the light emitted by the light-emitting unit 21. The peripheral wall 1133 is arranged around the periphery of the top wall 1132. The top wall 1132 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 112 through the top wall 1132 and the peripheral wall 1133, it is emitted from the first light-emitting side 1102, enters the light-emitting member 12 through the light-incident side 1201, and finally is emitted through the first light-emitting part 111 and the second light-emitting part 121. In this embodiment, the top wall 1132 protrudes towards the light-emitting unit 21, and the peripheral walls on both sides of the top wall 1132 are curved surfaces facing the circuit board 22. By setting the top wall 1132 and the peripheral walls, the emitted light from the light-emitting unit 21 from various angles can be collected, improving the uniformity of light emission and forming more light emission angles. It can be understood that the top wall 1132 is equivalent to a focusing lens, which can converge the light, focusing the light from the light-emitting unit 21 within a specific range of the light guide 11 (i.e., the first light-emitting side 1102), thereby improving the light emission brightness and light emission effect of the light-emitting component 12.
[0036] In some embodiments, the center point of the top wall 1132 of the light-incident cavity 1131 is directly opposite the light-emitting unit 21, and there is a protrusion at the center point facing the light-emitting unit 21. The two sides of the protrusion are curved surfaces facing the circuit board 22, so that the top wall 1132 is approximately C-shaped. This embodiment does not impose specific limitations on the distance between the light-incident cavity 1131 and the light source module 20. It can be understood that the distance between the light-incident cavity 1131 and the light-emitting unit 21 can be small, thereby making the structure of the light guide 11 compact, thereby reducing the volume of the optical lens 112, making the lamp 100 suitable for a smaller installation area and applicable to more usage scenarios. At the same time, it also facilitates shortening the light path emitted by the light-emitting unit 21, improving the light output brightness and light output efficiency.
[0037] In this embodiment, the optical lens 112 further includes a first reflecting surface 1121, which is connected to the peripheral wall 1133. The first reflecting surface 1121 forms the outer contour of the optical lens 112 and is used to reflect light incident through the peripheral wall 1133 to the first light-emitting side 1102, so that light can be emitted from the first light-emitting part 111 and the second light-emitting part 121, thereby improving the utilization rate and brightness of the light. In this embodiment, the first reflecting surface 1121 is an arc surface, and the concave direction of the arc surface faces the side where the light-emitting unit 21 is located. That is, the first reflecting surface 1121 is a convex surface that forms the outer contour of the optical lens 112. The arc surface can be a sphere, a quasi-spherical surface, an ellipsoidal surface, a freeform surface, or other aspherical surface. This embodiment does not limit this. The curved surface allows multiple beams of light generated by the light-emitting unit 21, incident through the peripheral wall, to be reflected by different areas of the first reflective surface 1121 to different positions on the light-incident side 1201. This results in a uniform light beam at the first light-emitting section 111 and the second light-emitting section, increasing the light emission range of the lamp 100. Furthermore, the curved surface also has a light-focusing effect, converging the light generated by the light-emitting unit 21 onto the first reflective surface 1121, improving light utilization. In other embodiments, the first reflective surface 1121 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, allowing different segments to reflect the received light to different areas of the light-incident side 1201, increasing the light emission range and light emission effect.
[0038] In other embodiments, the first reflective surface 1121 may also be a plane or a combination of plane segments. The first reflective surface 1121, formed by connecting plane segments or a combination of plane segments, is inclined relative to the optical axis O1, allowing some of the light generated by the light-emitting unit 21 to be reflected by the first reflective surface 1121 to the light-incident side 1201. The light diffuses on the light-incident side 1201, and the diffused light can then exit from the first light-emitting part 111 and the second light-emitting part 121, thereby increasing the brightness and light emission effect of the lamp 100. This embodiment does not impose a specific limitation on the angle between the first reflective surface 1121 and the optical axis O1; for example, it can be 20°, 30°, 45°, 60°, etc., and can be set according to actual application requirements to obtain different light emission effects.
[0039] In some embodiments, a first microstructure 1122 may be provided on the first reflective surface 1121. The first microstructure 1122 is used to improve the reflection efficiency of the first reflective surface 1121. The first microstructure 1122 is also used to change the reflection direction of light and carry a texture shape to form different light emission effects. Specifically, the first microstructure 1122 may include at least one of the following: striped structure, scale-like structure, beaded structure, etc. The first microstructure 1122 may be at least provided on a portion of the first reflective surface 1121 or may cover the entire first reflective surface 1121. The specific shape and size of the first microstructure 1122 provided in different areas of the first reflective surface 1121 may be the same or different, and this embodiment does not impose specific limitations. By providing the above-mentioned first microstructure 1122, when light from different optical paths passes through the first reflective surface 1121, it can be reflected to the incident light side 1201 under the action of the first microstructure 1122, thereby improving the utilization rate of light. In addition, when the light-emitting unit 21 can form light of various colors, the first microstructure 1122 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.
[0040] In other embodiments, to further improve light utilization, the first reflecting surface 1121 is a total internal reflection surface, used to cause total internal reflection of light. Specifically, the optical lens 112 has a refractive index greater than 1, and the angle of incidence of light exiting the optical lens 112 onto the first reflecting surface 1121 is greater than the critical angle at which the outgoing light is reflected from the first reflecting surface 1121 to the outside air, so that total internal reflection occurs on the first reflecting surface 1121, 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 (not shown in the figure) may be provided on the first reflecting surface 1121 to enhance the total internal reflection effect.
[0041] Referring to Figures 3 and 5, as another example, the light guide 11 includes a reflector 114 and a light guide sheet 115, which are arranged sequentially along the optical axis O1. The light guide sheet 115 is located between the first light-emitting side 1102 and the light-incident side 1201. Specifically, the light guide sheet 115 can be a light-transmitting substrate such as transparent glass or a transparent plastic sheet, or a diffuser sheet, so that light can be transmitted through the light guide 12 and emitted from the first light-emitting portion 111 and the second light-emitting portion 121. The light guide sheet 115 can be connected to the reflector 114 or spaced apart from it; this embodiment does not impose specific limitations on this.
[0042] A reflector 114 is mounted on a circuit board 22. The internal space of the reflector 114 forms a light mixing cavity 1141, which is used to accommodate the light source module 20. 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 mixing cavity 1141, so that the emitted light generated by the light-emitting unit 21 can be concentrated in the light mixing cavity 1141 and emitted from the first light-emitting part 111 and the second light-emitting part 121 with a shorter path, thereby improving light utilization and emission efficiency.
[0043] The reflector cup 114 includes a second reflective surface 1142, which surrounds the sidewall of the first light mixing cavity 1141 and is connected to the circuit board 22. The light source module 20 is disposed inside the light mixing cavity 1141 formed by the second reflective surface 1142, and is used to reflect part of the light to the light emitting element 12 to improve the light utilization rate and light output brightness. In this embodiment, the second reflective surface 1142 is an arc surface, with the concave direction of the arc surface facing the side where the light-emitting unit 21 is located. The arc surface can be a sphere, a quasi-spherical surface, an ellipsoidal surface, a freeform surface, or other non-spherical surface; this embodiment does not limit this. The arc surface enables multiple beams of light generated by the light-emitting unit 21 to be reflected from different areas of the second reflective surface 1142 to different positions on the light-incident side 1201, thereby forming a uniform light beam at the light emitting element 12 and improving the light output range of the lamp 100. In addition, the arc surface also has a light-focusing effect, which can converge the light generated by the light-emitting unit 21 to the second reflective surface 1142, improving the light utilization rate. In other embodiments, the second reflective surface 1142 may also be composed of multiple arc segments connected together. The radii of curvature of adjacent arc segments may be the same or different, so that the surface segments at different positions can reflect the received light to different areas on the incident light side, thereby increasing the light output range and light output effect.
[0044] In other embodiments, the second reflective surface 1142 may also be a plane or a combination of plane segments. The second reflective surface 1142, formed by connecting plane segments or a combination of plane segments, is inclined relative to the optical axis O1, so that some of the light generated by the light-emitting unit 21 can be reflected to the light-emitting element 12 via the second reflective surface 1142, thereby increasing the brightness and light emission effect of the lamp 100 in the first light-emitting part 111 and the second light-emitting part 121. This embodiment does not impose a specific limitation on the angle between the first reflective surface 1121 and the optical axis O1; for example, it can be 20°, 30°, 45°, 60°, etc., and can be set according to actual application requirements to obtain different light emission effects.
[0045] In some embodiments, a second microstructure 1143 may be provided on the second reflective surface 1142. The second microstructure 1143 is used to improve the reflection efficiency of the second reflective surface 1142. The second microstructure 1143 is also used to change the reflection direction of light and carry a texture shape to form different light emission effects. Specifically, the second microstructure 1143 may include at least one of the following structures: striped structure, scale-like structure, beaded structure, etc. The second microstructure 1143 may be at least provided on a portion of the second reflective surface or may cover the entire second reflective surface 1142. The specific shape and size of the second microstructure 1143 provided in different areas of the second reflective surface 1142 may be the same or different, and this embodiment does not impose specific limitations on this. By providing the above-mentioned second microstructure 1143, when light from different optical paths passes through the second reflective surface 1142, it can be reflected to the light-incident side 1201 under the action of the second microstructure 1143, and transmitted to the first light-emitting part 111 and the second light-emitting part 121, thereby improving the utilization rate of light. In addition, when the light-emitting unit 21 can form light of various colors, the second microstructure 1143 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.
[0046] In other embodiments, to further improve light utilization, the second reflecting surface 1142 is a total internal reflection surface, used to cause total internal reflection of light. Specifically, the reflector 114 has a refractive index greater than 1, and the angle of incidence of light exiting the reflector 114 and reaching the second reflecting surface 1142 is greater than the critical angle at which the outgoing light is reflected from the first and second reflecting surfaces 1142 to the outside air, so that total internal reflection occurs on the second reflecting surface 1142, 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 (not shown in the figure) may be provided on the second reflecting surface 1142 to enhance the total internal reflection effect.
[0047] In this embodiment, the light emitting element 12 is a structure of the optical component 10 used to emit light. It is disposed on the side of the light guide 11 away from the light source module 20 and is disposed adjacent to the light guide 11. The light emitting element 12 includes the first light emitting part 111, the second light emitting part 121 and the light incident side 1201 mentioned above. The light incident side 1201 is disposed adjacent to the first light emitting side 1102. The light incident through the light guide 11 diffuses at the light incident side 1201. Part of the light is emitted along the light emitting direction of the first light emitting part 111, and the other part of the light diffuses to the second light emitting part 121 and is emitted from the second light emitting part 121, thereby improving the light emission range of the lamp 100.
[0048] Please refer again to Figure 3. In this embodiment, the light-emitting element 12 can be approximately annular in shape, with a light-transmitting hole 122. The axis of the light-transmitting hole 122 is parallel to or coincides with the optical axis O1. In this embodiment, the light-transmitting hole 122 passes through the light-emitting element 12, and its axis can coincide with the optical axis O1, so that the light-transmitting hole 122 faces the first light-emitting part 111. When the light guide 11 and the light-emitting element 12 are connected to each other, the first light-emitting part 111 is located at one end of the light-transmitting hole 122. The light-transmitting hole 122 is used to allow a portion of the light emitted through the first light-emitting part 111 to be emitted to the outside. The second light-emitting part 121 is spaced apart from the optical axis O1 and extends along the direction of the optical axis O1, specifically, it can be arranged parallel to the optical axis O1 and facing the side away from the optical axis O1. The second light-emitting section 121 can specifically be the outer peripheral wall of the light-emitting element 12, which is approximately perpendicular to the first light-emitting section 111 and surrounds the optical axis O1 and the light-transmitting hole 122, thereby forming a ring-shaped light emission. When light propagates to the light-incident side 1201, it diffuses. A portion of the diffused light diffuses along the first light-emitting section 111, and another portion exits parallel to the first light-emitting section 111, that is, exits to the outside at the light-incident side 1201 along the direction of the light-transmitting hole 122. Another portion of the light deviates from the optical axis O1 and exits from the second light-emitting section 121, providing illumination or ambient light to two different directions, thus creating two different light emission effects. Specifically, when the lamp 100 is installed on a wall, the first light-emitting section 111 can be positioned towards the ceiling, and the second light-emitting section 121 can be positioned parallel to the wall, allowing the lamp 100 to simultaneously project light onto both the ceiling and the wall, improving light output brightness and creating two light emission effects.
[0049] It should be noted that the first light-emitting portion 121 can be a solid structure or a non-solid structure. For example, in this embodiment, the light-transmitting hole 122 connects the outside world and the light-emitting element 12, and the first light-emitting portion 121 is defined by the light-transmitting hole 122. The end of the light-transmitting hole 122 facing away from the light guide element 11 forms the first light-emitting portion 121. In some embodiments, the light-transmitting hole 122 does not penetrate the light-emitting element 12, in which case the first light-emitting portion 121 can be the surface of the light-emitting element 12 facing away from the light guide element 11.
[0050] In other embodiments, the light-emitting element 12 can be a sheet-like structure, specifically a light-transmitting substrate such as light-transmitting glass or light-transmitting plastic sheet. The second light-emitting part 121 forms the side wall of the light-transmitting substrate, and the first light-emitting part 111 can form the top wall of the light-transmitting substrate away from the light guide element 11. After the light diffuses on the light-incident side 1201, some of the light passes through the light-transmitting substrate and is emitted to the first light-emitting part 111, while some of the light deviates from the optical axis O1 and is emitted to the second light-emitting part 121.
[0051] It should be noted that the second light-emitting portion 121 can be a closed annular surface as mentioned above, or it can be an open surface segment. For example, the second light-emitting portion 121 can be a plurality of spaced-apart surface segments arranged along the circumference of the light-emitting member 12. Of course, the second light-emitting portion 121 can also be a single surface segment, and this embodiment does not impose any specific limitations on this.
[0052] To further improve the light emission effect, in this embodiment, the light emission area of the first light-emitting part 111 is larger than the light emission area of the second light-emitting part 121, thus the first light-emitting part 111 forms the main light emission range, and the second light-emitting part 121 forms the secondary light emission range. In this case, the main light emission range can be used for concentrated light emission, while the secondary light emission range can be used for ambient or environmental light emission, which can increase the sense of layering in different lighting areas and further improve the lighting effect. It is understood that the light emission area of the first light-emitting part 111 can also be less than or equal to the light emission area of the second light-emitting part 121; this embodiment does not impose specific limitations on this.
[0053] Referring to Figures 3 and 5, in this embodiment, the optical component 10 further includes a light diffusion structure 13, which is disposed between the light guide 11 and the light emitting component 12, i.e., disposed on the light input side 1201 or the first light output side 1102. It is used to diffuse the light entering the light emitting component 12 to the first light output section 111 and the second light output section 121. Specifically, the light diffusion structure 13 can be a diffuser sheet 131, which is stacked on the light input side 1201. The diffuser sheet 131 can specifically include a light-transmitting substrate (not shown in the figures) and a diffusion structure (not shown in the figures). The diffusion structure can be a diffusion particle or a diffusion microstructure. This embodiment does not specifically limit the specific type and distribution area of the diffusion structure.
[0054] In some embodiments, the light diffusion structure 13 can also be an optical microstructure 132, such as a bead surface, groove, or protrusion. This embodiment does not impose specific limitations on the specific type, shape, or size of the optical microstructure 132. The optical microstructure 132 can be disposed on the light-incident side 1201, on the side of the light-emitting element 12 facing the light-incident side 1201, or simultaneously on both. This embodiment does not impose specific limitations on this.
[0055] In some embodiments, a third microstructure (not shown in the figure) may also be provided on the second light-emitting section 121. The third microstructure is used for light mixing to improve the uniformity of the emitted light. This embodiment does not impose specific limitations on the specific shape and size of the third and fourth microstructures. For example, the third microstructure can be any combination of one or more of the following structures: striped structure, scale-like structure, beaded structure, etc. By providing the third microstructure, light emission uniformity can be achieved. Furthermore, light propagating to different third microstructures can carry different texture information or form different emission velocities, thereby creating various light emission effects on the light-receiving surface.
[0056] It should be noted that the optical microstructures 132 and the third microstructure mentioned above can be at least disposed on the corresponding first light-emitting part 111 and second light-emitting part 121, or they can be distributed all over the first light-emitting part 111 and second light-emitting part 121. The specific shape and size of the optical microstructures 132 and the third microstructure disposed in different areas of the first light-emitting part 111 and the second light-emitting part 121 can be the same or different, and this embodiment does not impose specific limitations on this. By disposing of different optical microstructures 132 in different areas, light can carry different texture information or form different emission velocities when propagating to different areas, thereby forming a variety of light emission effects on the light receiving surface.
[0057] Referring again to Figure 2, in some embodiments, to create a clear interval between the light-emitting area corresponding to the first light-emitting part 111 and the light-emitting area corresponding to the second light-emitting part 121, thereby increasing the sense of layering in the light emission effect, the optical component 10 also includes a light-transmitting cover 30. The light-transmitting cover 30 is positioned on the side of the light-emitting member 12 opposite to the light guide member 11, and it is used to restrict the propagation of light between the first light-emitting part 111 and the second light-emitting part 121, thereby preventing the corresponding light-emitting areas from overlapping and improving the clarity of the light-emitting areas. Simultaneously, the light-transmitting cover 30 also helps to form specific light patterns, such as confining the bright spot formed by the second light-emitting part 121 to the periphery of the optical component 10, and cooperating with the bright spot formed by the first light-emitting part 111 to form a main light-emitting area and a secondary light-emitting area, further improving the light emission effect.
[0058] As an example, the light-transmitting cover 30 can be arranged in a ring shape to match the contour of the light-emitting element 12. The light-transmitting cover 30 can include a light-shielding part 31 and a light-transmitting part 32, with the light-shielding part 31 surrounding the outer periphery of the light-transmitting part 32. The light-transmitting part 32 is spaced apart from the first light-emitting part 111 and can be stacked on the surface of the light guide 11 facing away from the first light-emitting part 111. It can be positioned directly opposite the light-transmitting hole 122 of the light guide 11 to allow some of the light diffused by the first light-emitting part 111 to be emitted. The light-transmitting part 32 can be a light-transmitting solid, such as glass or light-transmitting plastic, etc., and this embodiment does not impose specific limitations on it. The light-transmitting part 32 can also be a through hole that connects to the light-transmitting hole 122, allowing some of the light diffused by the first light-emitting part 111 to be emitted to the outside through the light-transmitting hole 122 and the light-transmitting through hole in sequence.
[0059] In this embodiment, the light-shielding part 31 is an annular light-shielding structure. When the light-shielding part 31 and the second light-emitting part 121 are projected toward the first light-emitting part 111, the projection of the second light-emitting part 121 falls within the projection of the light-shielding part 31, thereby effectively preventing the light emitted through the first light-emitting part 111 and the light emitted through the second light-emitting part 121 from intersecting. In other embodiments, the light-transmitting cover 30 can also be an opaque sticker or light-shielding tape, such as dark-colored light-shielding paper, which is attached to the periphery of the light-transmitting entity.
[0060] In summary, the optical component 10 provided in this application has an optical axis O1. The light guide 11 and the light emitting component 12 of the optical component 10 are arranged sequentially along the optical axis O1, which can ensure that light can be effectively propagated from the light guide 11 to the light emitting component 12, and make the entire optical component 10 compact, which helps to reduce the size and weight of the lamp 100. In this embodiment, the light guide 11 includes a first light emitting part 111, and the light emitting component 12 includes a second light emitting part 121. The light can be emitted from the first light emitting part 111 and the second light emitting part 121 to expand the light emission range. Furthermore, the optical axis O1 passes through the first light emitting part 111, and the second light emitting part 121 extends along the direction of the optical axis O1 and is spaced apart from the optical axis O1. That is, the light can be emitted in two different directions, so that the lamp 100 can adapt to various light emission needs and scenarios, such as concentrated light emission or uniform light emission, which can improve the flexibility of use and the light emission effect of the lamp 100.
[0061] 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.
[0062] 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.
[0063] 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 component, characterized in that, The optical component is applied to a lamp with a light source module; the optical component has an optical axis, and includes a light guide and a light emitting component, which are arranged sequentially along the optical axis; the light emitting component has an incident light side, through which light is transmitted; the light emitting component includes a first light emitting part and a second light emitting part, the optical axis passes through the first light emitting part, and the second light emitting part extends along the direction of the optical axis and is spaced apart from the optical axis; A light guide is disposed between the light-incident side and the light source module. The light guide is used to guide the light to the light-emitting component and then emit it through the first light-emitting part and the second light-emitting part.
2. The optical component as described in claim 1, characterized in that, The second light-emitting part is the outer peripheral wall surface of the light-emitting member, and the second light-emitting part surrounds the outer periphery of the optical axis.
3. The optical component as described in claim 2, characterized in that, The light-emitting component is provided with a light-transmitting hole, the axis of which is parallel to or coincides with the optical axis, and the first light-emitting part is located at one end of the light-transmitting hole.
4. The optical component as claimed in claim 1, characterized in that, The optical component further includes a light-transmitting cover, which is disposed on the side of the light-emitting element away from the light guide element; the light-transmitting cover includes a light-shielding part and a light-transmitting part, the light-shielding part surrounds the outer periphery of the light-transmitting part and is disposed between the second light-emitting part and the first light-emitting part; the light-transmitting part and the first light-emitting part are opposite to each other to allow light emitted through the first light-emitting part to be emitted to the light-receiving surface, and the light-transmitting part is a light-transmitting solid or a through hole.
5. The optical component as claimed in claim 1, characterized in that, The light guide is an optical lens. The optical lens has an entrance cavity on the light-incident side. The entrance cavity is used to accommodate the light source module. The light from the light source module enters the optical lens through the entrance cavity and is transmitted to the entrance side, and then emitted through the first light-emitting part and the second light-emitting part.
6. The optical component as claimed in claim 5, characterized in that, The optical lens further includes a first reflecting surface, which is the outer peripheral wall of the optical lens. After a portion of the light rays enter the interior of the optical lens through the light entrance cavity, they are reflected by the first reflecting surface to the light entrance side.
7. The optical component as claimed in claim 1, characterized in that, The light guide includes a reflector cup and a light guide sheet, the reflector cup and the light guide are arranged sequentially along the optical axis, and the light guide sheet is located between the light-incident side and the reflector cup; the reflector cup is provided with a light mixing cavity, the light mixing cavity is used to accommodate the light source module; the reflector cup also includes a second reflective surface, the second reflective surface forms the side wall surface of the light mixing cavity, and part of the light from the light source module is reflected to the light-incident side via the second reflective surface.
8. The optical component as described in any one of claims 1 to 7, characterized in that, The optical component further includes a light diffusion structure disposed between the light guide and the light emitting element. The light diffusion structure allows a portion of the light emitted via the incident light side to diffuse to the first light emitting part and the second light emitting part.
9. The optical component as claimed in claim 8, characterized in that, The light diffusion structure includes a diffuser sheet stacked on the light-incident side; and / or the light diffusion structure includes an optical microstructure disposed on the light-incident side and / or on the side of the light guide facing the light-incident side.
10. A lamp, characterized in that, include: The light source module is used to emit light. And the optical component as described in any one of claims 1 to 9; The optical components are located on the optical path formed by the light source module.