Optical device with low glare and high spatial color uniformity

Abstract

This invention discloses an optical device with low glare and high spatial color consistency, including a reflector, a lens, and a light source module. The lens is positioned above the light source module, and the reflector is positioned above the lens. The light-emitting surface of the lens has a planar structure, and an arc-shaped protrusion is located in the middle of the light-intake surface. Several toothed rings are located on the outer side of the protrusion. This design allows for a smaller light-emitting angle, resulting in higher light-emitting efficiency. It also reduces the overall thickness of the lens, saving material costs and allowing the optical device to be controlled in a smaller volume, thus enabling applications in a wider range of scenarios.

Description

Technical Field

[0001] This utility model belongs to the field of optical device technology, specifically relating to an optical device with low glare and high spatial color consistency. Background Technology

[0002] In the current field of lighting technology, there is a continuous demand for higher performance and quality of optical devices. Traditional optical devices have certain limitations in many aspects, such as significant glare problems or poor spatial color consistency.

[0003] Therefore, there is an urgent need for an optical device with low glare and high spatial color consistency. This device should possess both low glare and high spatial color consistency. Utility Model Content

[0004] The purpose of this invention is to provide an optical device with low glare and high spatial color consistency, thereby solving the problems mentioned in the background art. The optical device with low glare and high spatial color consistency provided by this invention features both low glare and high spatial color consistency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an optical device with low glare and high spatial color consistency, comprising a reflector, a lens, and a light source module, wherein the lens is disposed above the light source module, the reflector is disposed above the lens, the light-emitting surface of the lens has a planar structure, an arc-shaped protrusion is provided in the middle of the light-incoming surface of the lens, and several toothed rings are provided on the outer side of the protrusion.

[0006] To achieve higher light extraction efficiency, reduce the overall thickness of the lens, and save material costs, the toothed ring portion further includes an inner bevel and an outer arc surface, with the outer arc surface of several toothed ring portions increasing in size from the inside to the outside. The distance from the edge of several toothed ring portions to the light-emitting surface of the lens also increases in size from the inside to the outside.

[0007] To achieve soft, diffused light and improve spatial color consistency, a frosted layer is further provided on the light-emitting surface of the lens.

[0008] To further enhance the light density per unit area, while ensuring uniform monochromatic light, the light mixing effect is made smoother and more consistent. Multiple color temperature adjustments are available to meet the needs of more colorful scenes. Therefore, the light source module is a COB (Chip-on-Board) light source. The light source module includes several low-color-temperature LEDs and high-color-temperature LEDs, arranged alternately. The spacing between adjacent LEDs is equal.

[0009] In order to control the direction of light efficiently and accurately, minimize stray light, and effectively reduce glare, a high-reflectivity layer is further provided on the inner wall of the reflector.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The lens of this utility model has an arc-shaped protrusion in the middle of the light-inlet surface, and a three-ring toothed part on the outer side of the protrusion. This design can reduce the light-out angle, thereby achieving higher light-out efficiency. It can also reduce the overall thickness of the lens, saving material costs and keeping the optical device in a smaller size, thus enabling it to be used in more application scenarios.

[0012] 2. The lens of this utility model can also eliminate some spherical aberration, avoid excessively strong bright spots or dark areas, achieve uniform light spots, and improve spatial color consistency.

[0013] 3. The light-emitting surface of the lens of this utility model is provided with a frosted layer to achieve soft scattering of light and improve the consistency of spatial color.

[0014] 4. This utility model achieves a further improvement in light density per unit area. While ensuring uniform monochromatic light, the light mixing effect is more gentle and consistent, and multiple color temperature adjustments are available to meet the needs of more colorful scenes.

[0015] 5. The inner wall of the reflector cup of this utility model is provided with a high reflective layer. By controlling the direction of light efficiently and accurately through the reflector cup, stray light is minimized, which can effectively reduce the glare value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of the lens of this utility model.

[0018] In the diagram: 1. Reflector; 2. Lens; 21. Protrusion; 22. Toothed ring; 3. Light source module. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] Please see Figures 1-2The present invention provides the following technical solution: an optical device with low glare and high spatial color consistency, including a reflector 1, a lens 2 and a light source module 3, wherein the lens 2 is disposed above the light source module 3, the reflector 1 is disposed above the lens 2, the light-emitting surface of the lens 2 is a planar structure, an arc-shaped protrusion 21 is provided in the middle of the light-incoming surface of the lens 2, and a three-ring toothed ring 22 is provided on the outer side of the protrusion 21. The toothed ring 22 includes an inner inclined surface and an outer arc surface, and the outer arc surface of the three-ring toothed ring 22 increases sequentially from the inside to the outside, and the distance from the edge of the three-ring toothed ring 22 to the light-emitting surface of the lens 2 increases sequentially from the inside to the outside.

[0022] By adopting the above technical solution, the lens 2 of this utility model has an arc-shaped protrusion 21 at the middle position of the light-gathering surface, and a three-ring toothed portion 22 on the outer side of the protrusion 21. This design can reduce the light-emitting angle, thereby achieving higher light-emitting efficiency and reducing the overall thickness of the lens 2. This not only saves material costs but also allows the optical device to be controlled in a smaller volume, thus enabling it to be used in more application scenarios. The lens 2 of this utility model can also eliminate some spherical aberration, avoid excessively strong bright spots or dark areas, achieve uniform light spots, and improve spatial color consistency.

[0023] Specifically, a frosted layer is provided on the light-emitting surface of lens 2.

[0024] By adopting the above technical solutions, soft, diffused light can be achieved, thereby improving the consistency of spatial colors.

[0025] Example 2

[0026] The difference between this embodiment and Embodiment 1 is that, specifically, the light source module 3 is a COB light source. The light source module 3 includes several low color temperature LEDs and high color temperature LEDs, arranged alternately. The spacing between adjacent LEDs is equal.

[0027] By adopting the above technical solutions, the light density per unit area can be further improved. While ensuring the uniformity of monochromatic light, the light mixing effect is more gentle and consistent, and multiple color temperature adjustments can be made to meet the needs of more colorful scenes.

[0028] Example 3

[0029] The difference between this embodiment and embodiment 1 is that, specifically, a high-reflectivity layer, such as an aluminum layer or an electroplated silver layer, is provided on the inner wall of the reflector cup 1.

[0030] By adopting the above technical solution, the reflector cup 1 can efficiently and accurately control the direction of light, resulting in very little stray light and effectively reducing glare.

[0031] In summary, the lens 2 of this invention features an arc-shaped protrusion 21 at the center of its light-gathering surface, and a three-ring toothed portion 22 on the outer side of the protrusion 21. This design reduces the light-emitting angle, resulting in higher light-emitting efficiency and a reduced overall thickness of the lens 2. This not only saves material costs but also allows for smaller optical components, making it suitable for a wider range of applications. The lens 2 of this invention also eliminates some spherical aberration, preventing excessively strong bright or dark areas, achieving uniform light spots, and improving spatial color consistency. The light-emitting surface of the lens 2 of this invention has a frosted layer, achieving softer, more diffused light and further improving spatial color consistency. This invention further enhances the light density per unit area, achieving a softer and more consistent light mixing effect while maintaining uniform monochromatic light, and offering multi-color temperature adjustment to meet the needs of more colorful scenes. The inner wall of the reflector cup 1 of this invention has a high-reflectivity layer. By efficiently and accurately controlling the light direction through the reflector cup 1, stray light is minimized, effectively reducing glare.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical device with low glare and high spatial color consistency, characterized in that: It includes a reflector, a lens, and a light source module. The lens is positioned above the light source module, and the reflector is positioned above the lens. The light-emitting surface of the lens has a planar structure, and an arc-shaped protrusion is provided in the middle of the light-incoming surface of the lens. Several toothed rings are provided on the outer side of the protrusion.

2. The optical device with low glare and high spatial color uniformity according to claim 1, characterized in that: The toothed ring portion includes an inner inclined surface and an outer arc surface, and the outer arc surface of several toothed ring portions increases sequentially from the inside to the outside.

3. The optical device with low glare and high spatial color uniformity according to claim 1, characterized in that: The distance from the edge of several toothed rings to the light-emitting surface of the lens increases sequentially from the inside to the outside.

4. The optical device with low glare and high spatial color uniformity according to claim 1, characterized in that: The light-emitting surface of the lens is provided with a frosted layer.

5. The optical device with low glare and high spatial color uniformity according to claim 1, characterized in that: The light source module is a COB light source.

6. The optical device with low glare and high spatial color uniformity according to claim 1, characterized in that: The light source module includes several low color temperature LEDs and high color temperature LEDs, which are arranged alternately.

7. The optical device with low glare and high spatial color uniformity according to claim 6, characterized in that: The spacing between two adjacent LED beads is equal.

8. The optical device with low glare and high spatial color uniformity according to claim 1, characterized in that: The inner wall of the reflector cup is provided with a high reflectivity layer.

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