Optical assembly and luminaire

Abstract

This utility model belongs to the field of optical equipment technology and discloses an optical component and lamp, including a reflector, a lens, and an anti-glare cover. Both the reflector and the anti-glare cover are internally connected conical cylinders. The smaller diameter end of the reflector is the first light inlet, and the other end is the first light outlet. The smaller diameter end of the anti-glare cover is the second light inlet, and the other end is the second light outlet. The lens is disposed between the first light outlet and the second light inlet. The ratio of the reflector height h to the total height H of the optical component ranges from 0.35 to 0.95; the ratio of the lens diameter d to the second light outlet diameter D ranges from 0.5 to 1.0; the ratio of the first light inlet diameter Φ to the second light outlet diameter D ranges from 0.1 to 0.7; and the ratio of the lens diameter d to the reflector height h ranges from 0.3 to 0.9. This configuration increases the effective optical area of ​​the optical component, eliminates excessively bright spots, increases the area of ​​the first light inlet, allows compatibility with multiple light sources, and improves the overall luminous efficiency of the lamp.

Description

Technical Field

[0001] This utility model relates to the field of optical equipment technology, and in particular to an optical component and a lamp. Background Technology

[0002] In commercial lighting, home decoration, and professional displays, directional lighting fixtures such as downlights, spotlights, and track lights are widely used. Their core function is to efficiently distribute and control the light emitted by the light source through reflectors to achieve precise lighting effects. However, existing reflector designs still suffer from low luminous efficiency, excessive Fresnel stray light, and excessive brightness in localized areas, resulting in poor visual effects and severely limiting the optical performance and user experience of the lighting fixtures.

[0003] Therefore, there is an urgent need to propose an optical component and lamp to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an optical component and a lamp to improve luminous efficiency, reduce Fresnel stray light, eliminate excessive brightness in local areas, optimize lighting effects, improve the visual appearance of the lamp, and thus significantly enhance the user experience.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An optical component includes a reflector, a lens, and an anti-glare shield. Both the reflector and the anti-glare shield are internally continuous conical cylinders. The smaller diameter end of the reflector is a first light inlet, and the other end is a first light outlet. The smaller diameter end of the anti-glare shield is a second light inlet, and the other end is a second light outlet. The lens is disposed between the first light outlet and the second light inlet. The ratio of the reflector height h to the total height H of the optical component ranges from 0.35 to 0.95. The ratio of the lens diameter d to the diameter D of the second light outlet ranges from 0.5 to 1.0. The ratio of the first light inlet diameter Φ to the second light outlet diameter D ranges from 0.1 to 0.7. The ratio of the lens diameter d to the reflector height h ranges from 0.3 to 0.9.

[0007] Furthermore, the ratio of the reflector height h to the total height H of the optical assembly is in the range of 0.7.

[0008] Furthermore, the ratio of the lens diameter d to the second light outlet diameter D is 0.85.

[0009] Furthermore, the ratio of the diameter Φ of the first light inlet to the diameter D of the second light outlet is 0.4.

[0010] Furthermore, the ratio of the lens diameter d to the reflector height h is 0.6.

[0011] Furthermore, the reflector cup and the anti-glare cover are detachably connected, and the lens is sandwiched between the reflector cup and the anti-glare cover.

[0012] Furthermore, the reflector is a mirror reflector, a white reflector, or a black reflector.

[0013] Furthermore, the lens is a convex lens, a TIR lens, or a Fresnel lens.

[0014] A luminaire includes a plurality of light sources and an optical component as described in any of the preceding claims, wherein the plurality of light sources are arranged in an array at a first light inlet.

[0015] Furthermore, the multiple light sources are arranged in a monochromatic light source arrangement or a dual-color light source arrangement.

[0016] The beneficial effects of this utility model are:

[0017] This utility model provides an optical component and lamp, including a reflector, a lens, and an anti-glare cover. Both the reflector and the anti-glare cover are internally continuous conical cylinders. The smaller diameter end of the reflector is the first light inlet, and the other end is the first light outlet. The smaller diameter end of the anti-glare cover is the second light inlet, and the other end is the second light outlet. The lens is positioned between the first light outlet and the second light inlet. The ratio of the reflector height h to the total optical component height H ranges from 0.35 to 0.95, increasing the distance between the light source and the lens. This reduces the angle θ of the light emitted from the light source to the lens, effectively reducing Fresnel stray light generated on the lower surface of the lens, thereby significantly improving light quality. Glare is reduced; the ratio of lens diameter d to second light outlet diameter D ranges from 0.5 to 1.0, and the ratio of lens diameter d to reflector height h ranges from 0.3 to 0.9, increasing the effective optical area of ​​the optical components. Under the same luminous flux conditions, it can effectively reduce the brightness per unit area, thereby eliminating local overly bright spots and avoiding discomfort when looking directly at the light with the naked eye, effectively improving the visual effect; the ratio of first light inlet diameter Φ to second light outlet diameter D ranges from 0.1 to 0.7, increasing the area of ​​the first light inlet, which can accommodate multiple light sources, thereby improving the overall luminous efficiency of the lamp and helping to improve energy utilization and visual effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the optical component of this utility model;

[0019] Figure 2 This is a bottom view of the optical component of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the optical component of this utility model. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the internal structure of the optical component of this utility model. Figure 2 .

[0022] In the picture:

[0023] 100. Light source;

[0024] 1. Reflector; 11. First light inlet; 12. First light outlet; 2. Lens; 3. Anti-glare shield; 31. Second light inlet; 32. Second light outlet. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0029] like Figures 1-4 As shown, this embodiment provides an optical component, including a reflector 1, a lens 2, and an anti-glare shield 3. Both the reflector 1 and the anti-glare shield 3 are internally connected conical cylinders. The smaller diameter end of the reflector 1 is the first light inlet 11, and the other end is the first light outlet 12. The smaller diameter end of the anti-glare shield 3 is the second light inlet 31, and the other end is the second light outlet 32. The lens 2 is disposed between the first light outlet 12 and the second light inlet 31. The ratio of the height h of the reflector 1 to the total height H of the optical component ranges from 0.35 to 0.95. The ratio of the diameter d of the lens 2 to the diameter D of the second light outlet 32 ​​ranges from 0.5 to 1.0. The ratio of the diameter Φ of the first light inlet 11 to the diameter D of the second light outlet 32 ​​ranges from 0.1 to 0.7. The ratio of the diameter d of the lens 2 to the height h of the reflector 1 ranges from 0.3 to 0.9.

[0030] First, the ratio of the diameter Φ of the first light inlet 11 to the diameter D of the second light outlet 32 ​​is in the range of 0.1 to 0.7, which increases the area of ​​the first light inlet 11 and can accommodate multiple SMD LEDs (surface-mount light-emitting diodes). It is easy to understand that the more LEDs there are under the same power, the greater the overall luminous efficacy of the lamp, which is beneficial to improving energy utilization and visual effect.

[0031] Secondly, the ratio of the diameter d of lens 2 to the diameter D of the second light outlet 32 ​​is in the range of 0.5 to 1.0, and the ratio of the diameter d of lens 2 to the height h of reflector cup 1 is in the range of 0.3 to 0.9. This increases the effective optical area of ​​the reflector, and under the same light transmission conditions, it can effectively reduce the brightness per unit area, thereby eliminating local overly bright spots, avoiding discomfort when looking directly at the light with the naked eye, and effectively improving the visual effect.

[0032] In addition, such as Figure 3 and Figure 4 As shown, the angle of the light emitted from the light source 100 to the lens 2 is θ. The dashed line represents Fresnel stray light. In this embodiment, the ratio of the height h of the reflector cup 1 to the total height H of the optical assembly is in the range of 0.35 to 0.95. This increases the distance between the light source 100 and the lens 2, making θ smaller and effectively reducing the Fresnel stray light generated on the lower surface of the lens 2, thereby significantly reducing glare.

[0033] In some optional embodiments, the ratio of the height h of the reflector cup 1 to the total height H of the optical components is 0.7. The height ratio and light control area ratio of the reflector cup 1 to the anti-glare cover 3 are more reasonable, which makes the light transmission path between the reflector cup 1, the lens 2 and the anti-glare cover 3 more reasonable and the light control precision is higher. Experiments have proven that it is more effective in reducing stray light and can further improve the overall light efficiency and visual presentation quality of the lamp, achieving the best balance between high efficiency and energy saving and high-quality lighting effect.

[0034] In other embodiments, the ratio of the height h of the reflector cup 1 to the total height H of the optical components is, but is not limited to, 0.35, 0.4, 0.8 or 0.95, and is not limited thereto.

[0035] In some optional embodiments, the ratio of the diameter d of the lens 2 to the height h of the reflector cup 1 is 0.6, which further improves the rationality of the height ratio and light control area ratio of the reflector cup 1 and the anti-glare cover 3, and further enhances the overall light efficiency and visual effect of the lamp.

[0036] In other embodiments, the ratio of the diameter d of the lens 2 to the height h of the reflector cup 1 is, but is not limited to, 0.3, 0.4, 0.7, 0.8 or 0.9, and is not limited here.

[0037] The Uniform Glare Ratio (UGR) is a standardized evaluation index defined by the International Commission on Illumination (ICI) for quantifying uncomfortable glare in indoor lighting scenarios. Its calculation method is as follows: in,

[0038] A represents the apparent area of ​​the light-emitting part of the lamp. In the industry, the second light-emitting port 32 is typically used as the light-emitting area for calculation. However, the actual light-controlling area is the lens 2 portion. Therefore, the closer the diameter d of lens 2 is to the diameter D of the second light-emitting port 32, the closer the calculated UGR result is to the glare effect seen by the human eye. In some optional embodiments, the ratio of the diameter d of lens 2 to the diameter D of the second light-emitting port 32 is 0.85. Experiments have shown that this ratio, while ensuring anti-glare performance, makes the actual visual effect closer to the calculated UGR result.

[0039] In other embodiments, the ratio of the diameter d of the lens 2 to the diameter D of the second light outlet 32 ​​is, but is not limited to, 0.5, 0.6, 0.8, 0.9 or 1.0, and is not limited here.

[0040] In some optional embodiments, the ratio of the diameter Φ of the first light inlet 11 to the diameter D of the second light outlet 32 ​​is 0.4, which can fully adapt to the layout requirements of multiple SMD LED light sources 100, ensuring that the luminous efficacy ratio of the lamp is significantly improved by increasing the number of LEDs under unit power, thereby achieving higher energy conversion efficiency.

[0041] In other embodiments, the ratio of the diameter Φ of the first light inlet 11 to the diameter D of the second light outlet 32 ​​is, but is not limited to, 0.1, 0.2, 0.3, 0.6 or 0.7, and is not limited here.

[0042] In some optional embodiments, the reflector 1 and the anti-glare cover 3 are detachably connected, with the lens 2 sandwiched between the reflector 1 and the anti-glare cover 3. This design brings several significant advantages to the optical components. First, the above-mentioned setup greatly improves the ease of installation and maintenance of the product. When the lamp malfunctions or needs cleaning, the user can easily disassemble the reflector 1 and the anti-glare cover 3 to quickly access the internal components for inspection and cleaning, without the need for complicated tools and professional skills, effectively reducing maintenance costs and time costs.

[0043] Secondly, this structure gives the product greater flexibility and adaptability. In practical applications, different specifications of reflector cup 1, anti-glare cover 3, or lens 2 can be easily replaced according to different lighting scenarios and needs. For example, in commercial displays, by replacing the reflector cup 1 and lens 2 with those having a stronger focusing effect, precise lighting of key areas can be achieved; while in home decoration scenarios, components with better diffusion effects can be replaced to create a soft and comfortable lighting atmosphere. At the same time, this modular design also facilitates product upgrades and iterations. When new optical components are introduced, only the corresponding components need to be replaced to improve the performance of the lamp and extend the product's lifespan.

[0044] In addition, the design of the lens 2 sandwiched between the two ensures the stability and accuracy of the lens 2 installation, avoids the lens 2 from shifting due to vibration and other factors, and avoids affecting the light adjustment effect. At the same time, it also provides stronger protection for the lens 2 during disassembly, reduces the damage to the lens 2 caused by frequent disassembly and assembly, and further ensures the optical performance and lighting quality of the lamp.

[0045] Optionally, the optical component further includes a connector, the two ends of which are respectively snapped or plugged into the reflector 1 and the anti-glare cover 3 to achieve a detachable connection between the two. In some optional embodiments, the optical component may also include a fastening sleeve, which is adapted to the shape and structure of the optical component, can be fitted onto the connection between the reflector 1 and the reflector, and can be interference-fitted with both. By moving the fastening sleeve up and down, the reflector 1 and the reflector can be locked or unlocked.

[0046] In some optional embodiments, the reflector cup 1 is a mirror reflector cup, which utilizes a highly reflective mirror surface to achieve directional strong light reflection and focus the light to form a concentrated beam.

[0047] In some optional embodiments, the reflector cup 1 is a white reflector cup. By utilizing the diffuse reflection properties of the white surface, the light can be evenly diffused, reducing glare and expanding the illumination range.

[0048] In some optional embodiments, the reflector cup 1 is a black reflector cup, which utilizes the light absorption properties of the black surface to suppress stray light reflection, control the direction of light, and reduce light pollution.

[0049] In some alternative embodiments, lens 2 is a convex lens, which has stable optical performance and is good at light convergence and imaging. It is suitable for scenarios that require precise focus or magnification, such as microscope light sources, laser engraving machines or medical surgical lights.

[0050] In some optional embodiments, lens 2 is a TIR lens, which is capable of total internal reflection for efficient light control, and is compact in size, making it suitable for scenarios that require high reflection efficiency and precise angle control, such as jewelry counter spotlights, museum display case lights, or mobile phone flashlights.

[0051] In some optional embodiments, lens 2 is a Fresnel lens, which can diffuse light into a wide angle of 120° to 150° through a ring structure, eliminating dark areas, and is suitable for solar garden lights, outdoor photovoltaic street lights, or home projectors and advertising light boxes.

[0052] Furthermore, this embodiment also provides a lamp, including multiple light sources 100 and optical components as described in any of the above embodiments. The multiple light sources 100 are arrayed in a first light inlet 11, effectively improving the overall lighting efficiency. The optical components distribute and control the light emitted by the multiple light sources 100, thereby improving luminous efficiency, reducing Fresnel stray light, eliminating excessive brightness in local areas, optimizing the lighting effect, improving the visual appearance of the lamp, and thus significantly enhancing the user experience.

[0053] In some alternative embodiments, the multiple light sources 100 are arranged as monochromatic light sources, emitting only a single wavelength or narrow band spectrum. This method is low-cost and suitable for scenarios that are sensitive to monochromatic light (such as plant photosynthesis, medical testing), or scenarios that only require single-function lighting.

[0054] In some alternative embodiments, the multiple light sources 100 are arranged as dual-color light sources, integrating two light sources with different color temperatures or colors. Their color temperatures are adjustable, which can simulate the lighting conditions required by consumers and provide high flexibility.

[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An optical component, characterized in that, The device includes a reflector (1), a lens (2), and an anti-glare shield (3). Both the reflector (1) and the anti-glare shield (3) are internally connected conical cylinders. The smaller diameter end of the reflector (1) is the first light inlet (11), and the other end is the first light outlet (12). The smaller diameter end of the anti-glare shield (3) is the second light inlet (31), and the other end is the second light outlet (32). The lens (2) is disposed at the first light outlet (12) and the second light inlet (31). The ratio of the height h of the reflector cup (1) to the total height H of the optical component is between 0.35 and 0.95, the ratio of the diameter d of the lens (2) to the diameter D of the second light outlet (32) is between 0.5 and 1.0, the ratio of the diameter Φ of the first light inlet (11) to the diameter D of the second light outlet (32) is between 0.1 and 0.7, and the ratio of the diameter d of the lens (2) to the height h of the reflector cup (1) is between 0.3 and 0.

9.

2. The optical component according to claim 1, characterized in that, The ratio of the height h of the reflector cup (1) to the total height H of the optical component is in the range of 0.

7.

3. The optical component according to claim 1, characterized in that, The ratio of the diameter d of the lens (2) to the diameter D of the second light outlet (32) is 0.

85.

4. The optical component according to claim 1, characterized in that, The ratio of the diameter Φ of the first light inlet (11) to the diameter D of the second light outlet (32) is 0.

4.

5. The optical component according to claim 1, characterized in that, The ratio of the diameter d of the lens (2) to the height h of the reflector (1) is 0.

6.

6. The optical component according to any one of claims 1 to 5, characterized in that, The reflector (1) is detachably connected to the anti-glare shield (3), and the lens (2) is sandwiched between the reflector (1) and the anti-glare shield (3).

7. The optical component according to any one of claims 1 to 5, characterized in that, The reflector (1) is a mirror reflector, a white reflector, or a black reflector.

8. The optical component according to any one of claims 1 to 5, characterized in that, The lens (2) is a convex lens, a TIR lens, or a Fresnel lens.

9. A lamp, characterized in that, It includes a plurality of light sources (100) and an optical component as described in any one of claims 1 to 8, wherein the plurality of light sources (100) are arranged in an array at the first light inlet (11).

10. The lamp according to claim 9, characterized in that, The multiple light sources (100) are arranged in a monochromatic light source arrangement or a dual-color light source arrangement.

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