CN109827144B - Optical system for realizing two uniform luminous effects in same functional area of lamp - Google Patents
Optical system for realizing two uniform luminous effects in same functional area of lamp Download PDFInfo
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- CN109827144B CN109827144B CN201811237044.0A CN201811237044A CN109827144B CN 109827144 B CN109827144 B CN 109827144B CN 201811237044 A CN201811237044 A CN 201811237044A CN 109827144 B CN109827144 B CN 109827144B
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Abstract
The invention discloses an optical system for realizing two uniform luminous effects in the same functional area of a lamp, which comprises a light source and an inner lens, wherein the light source comprises a first light source and a second light source, the luminous light of the first light source is led to a first luminous area, the luminous light of the second light source is led to a second luminous area, and the first luminous area and the second luminous area are two adjacent luminous areas of the same functional area of the lamp; the light scattering effect of the first light emitting area is stronger than that of the second light emitting area.
Description
Technical Field
The invention relates to an optical system structure for realizing two uniform luminous effects in the same functional area of a lamp and an automobile rear lamp adopting the optical system structure.
Background
Along with the continuous development of the automobile industry and the continuous progress of car lamp technology, customers are increasingly higher in modeling and luminous effect of a back lamp, besides uniformity of a luminous area, customers gradually pursue softer and diversified luminous effects of a back lamp tail lamp, and the LED light source luminous system mainly realizes that LEDs emit light rays at a certain divergence angle, and the light rays are emitted through a reflecting mirror or transparent parts. At present, the control of different forms on light rays can be divided into a direct injection type and a reflection type, auxiliary means for matching the light rays are different, such as fish-eye matching, double-sided dermatoglyph matching and scattering matching, and the angles of the light rays are optimized to ensure that the regulation and the luminous uniformity can be met. However, the current lighting effect is too single, for example, all light rays of one functional area are emitted by a light guide or a condenser, all light rays are emitted by fish eyes, double-sided dermatoglyph is arranged in a matched manner and scattering is arranged in a matched manner, the whole lighting area truly realizes lighting uniformity, but the whole effect is dead, and the transition between a bright area and a non-bright area is abrupt and not soft enough.
Disclosure of Invention
The invention aims to solve the technical problem that a customer needs to realize multiple combined luminous effects in one functional area, and provides an optical system for realizing two uniform luminous effects in the same functional area of a lamp.
The technical problems to be solved by the method can be implemented by the following technical schemes.
An optical system for realizing two uniform luminous effects in the same functional area of a lamp comprises a light source and an inner lens, and is characterized in that the light source comprises a first light source and a second light source, the luminous light of the first light source is led to a first luminous area, the luminous light of the second light source is led to a second luminous area, and the first luminous area and the second luminous area are two adjacent luminous areas of the same functional area of the lamp; the light scattering effect of the first light emitting area is stronger than that of the second light emitting area.
As one of the preferred embodiments of the present invention, scattering particles are doped in the scattering endoscope lens body that participates in the light scattering of the first light emitting region.
Also as a preferred embodiment of the present invention, the surface roughness of the scattering inner lens participating in the light scattering of the first light emitting region is larger than the surface roughness of the scattering inner lens participating in the light scattering of the second light emitting region.
As a further improvement of the technical scheme, the first light-emitting area is provided with a first inner lens and a second inner lens which are overlapped and attached inside and outside, and the first inner lens is positioned at the inner side end of the second inner lens; and scattering particles are doped in the first inner lens body.
Still further, the second light emitting region is provided with a third inner lens; the first inner lens is a diffuse inner lens, the second inner lens is a first clear inner lens, and the third inner lens is a second clear inner lens.
Also as a preferred embodiment of the present invention, the first clear inner lens is provided with a dermatoglyph on the outer surface and/or the inner surface.
As one of the preferred embodiments of the present invention, the distance from the first light source to the scattering inner lens is larger than the distance from the second light source to the second clear inner lens.
As another preferred embodiment of the present invention, the first clear inner lens and the second clear inner lens are integrally formed as a first portion and a second portion of the clear inner lens.
As a further preferred embodiment of the present invention, the first light source and/or the second light source is an LED light source.
As a further improvement of the technical scheme, the scattering particles are doped in the inner lens surface of the scattering inner lens, the color of the material can be red and clear, and the material can also be matched with other layers of lenses.
The technical scheme is further improved, and modeling patterns such as piano keys or triangular patterns are arranged on the outer surface of the first clear inner lens.
As a further improvement of the technical scheme, the outer surface of the first clear inner lens is provided with fish eyes or triangular optical patterns.
Another object of the present invention is to provide a rear lamp for a vehicle, which has a rear lamp with the aforementioned optical system.
Another object of the present invention is to provide a backlight for a vehicle, which has a brake light of the aforementioned optical system.
By adopting the optical system and the car lamp of the technical scheme, the light source light is transmitted through the two types of inner lens structures respectively adopted at the upper part and the lower part of the same functional area of the lamp, so that two optical effects with uniform brightness are further realized in the same functional area of the same function.
The optical system and the car lamp mainly aim at the problem that the transition between a bright area and a non-bright area is abrupt and is not soft enough in the prior art, and the optical system for realizing two luminous effects in the same functional area is provided, so that diversified optical effects are provided for customers.
Drawings
FIG. 1 is a schematic diagram of an optical system according to the present invention;
in the figure: 1-light source element 2-light source element 3-mounting bracket 4-scattering inner lens 5-clear inner lens 6-Zhou Bianshi circles
Detailed Description
The invention provides an optical system for realizing two uniform luminous effects in the same functional area of a lamp, which comprises a light source and an inner lens, wherein the light source comprises a first light source and a second light source, the luminous light of the first light source is led to a first luminous area, the luminous light of the second light source is led to a second luminous area, and the first luminous area and the second luminous area are two adjacent luminous areas of the same functional area of the lamp; the light scattering effect of the first light emitting area is stronger than that of the second light emitting area.
In particular, the first light emitting region may be realized by one or a combination of a material containing scattering particles and an increased surface roughness of the material (e.g. increased surface texture). The first light-emitting area scattering material scheme can be a scattering inner lens and a clear inner lens which are overlapped inside and outside, wherein the scattering inner lens is positioned at the inner side end of the clear inner lens, and the scattering inner lens and the clear lens are required to be attached to avoid bad light-emitting effect caused by a middle gap; the first light-emitting area dermatoglyph scheme can increase dermatoglyphs for understanding the front and back sides of the inner lens, and achieves a larger light diffusion effect. The inner lens of the second light emitting region is an apparent inner lens. The purpose is to realize that the first light-emitting area has a scattering effect on light, and the second light-emitting area has a small scattering effect on light; thereby realizing the difference of scattering effects of the two light-emitting areas.
The following detailed description of the embodiments of the invention will be given with reference to the accompanying drawings.
As shown in the figure, the invention relates to an optical system for realizing two uniform luminous effects in the same functional area of a lamp, which is mainly applied to a tail lamp or a brake lamp in a rear lamp of an automobile.
Structurally, the LED light source comprises a light source element 1, a light source element 2, a mounting bracket 3, a scattering inner lens 4, a clear inner lens 5 and a peripheral decorative ring 6, wherein the light source element 1 and the light source element 2 are fixed on the mounting bracket 3, light rays (shown by a dotted line in the figure) emitted by the LED light source element 2 are emitted on the scattering inner lens 4 and are transmitted to the clear inner lens 5 through the scattering inner lens 4, so that a first light distribution area is illuminated by the light source; the light emitted by the LE light source element 1 is directly emitted on the inner lens 5, and then the light is led out by the inner lens 5, so that the light source can illuminate the second light distribution area, and the two light-emitting effects of uniform brightness in the same functional area are realized in the above mode.
The light source element 1 and the light source element 2 may be composed of different optical elements such as a light source, a reflector, a light guide, a spotlight or the like, the light emitted by the LED is uniformly emitted by the light source element, and the distance from the light source element 1 to the scattering inner lens 4 is larger than the distance from the light source element 2 to the clear lens 5.
The material used by the scattering inner lens 4 in the scattering scheme contains scattering particles, light rays can be uniformly distributed in the material, the effect of uniform emission on the surface of the material is achieved, the transmittance of the material is low, and the uniform atmosphere effect can be achieved. The rough dermatoglyph is added on the front surface and the back surface of the inner lens in the dermatoglyph scheme, so that the light incidence angle and the light emergence angle have larger floating ranges, the light is filled in all angles, and the effect of large-angle diffusion of the light is achieved.
The surface of the clear inner lens (the clear portion of the lens overlapped with the scattering material, i.e. the upper half area of the clear inner lens 5) in the first light distribution area scattering scheme can be added with different modeling characteristics (such as piano keys, triangular patterns and the like), so as to receive the uniform light rays led out by the scattering inner lens 4 and realize different uniform modeling atmosphere effects.
Different optical patterns such as fish eyes and triangles can be added on the surface of the lower half area (the area beyond the front of the inner lens 4) of the clear inner lens-5 of the second area to reach the requirement value of regulations on functions, and meanwhile, uniform and bright luminous effect is realized.
The optical system meets the requirement that the same functional area with the same function obtains two optical effects of uniform brightness and uniform darkness, and different characteristics and patterns can be added on the transparent inner lens to realize different modeling luminous effects.
Claims (14)
1. An optical system for realizing two uniform luminous effects in the same functional area of a lamp comprises a light source and an inner lens, and is characterized in that the light source comprises a first light source and a second light source, the luminous light of the first light source is led to a first luminous area, the luminous light of the second light source is led to a second luminous area, and the first luminous area and the second luminous area are two adjacent luminous areas of the same functional area of the lamp; the light scattering effect of the first light emitting area is stronger than that of the second light emitting area.
2. The optical system for realizing two uniform light-emitting effects in the same functional area of a lamp according to claim 1, wherein scattering particles are doped in a scattering inner lens body participating in light scattering in the first light-emitting area.
3. An optical system for realizing two uniform lighting effects in a same functional area of a lamp as defined in claim 1 or 2, wherein the surface roughness of the scattering inner lens participating in the light scattering of the first lighting area is larger than the surface roughness of the scattering inner lens participating in the light scattering of the second lighting area.
4. The optical system for realizing two uniform light-emitting effects in the same functional area of a lamp according to claim 1, wherein the first light-emitting area is provided with a first inner lens and a second inner lens which are overlapped and attached inside and outside, and the first inner lens is positioned at the inner side end of the second inner lens; and scattering particles are doped in the first inner lens body.
5. The optical system for realizing two uniform light-emitting effects in the same functional area of a lamp as defined in claim 4, wherein the second light-emitting area is provided with a third inner lens; the first inner lens is a diffuse inner lens, the second inner lens is a first clear inner lens, and the third inner lens is a second clear inner lens.
6. The optical system for achieving two uniform lighting effects in a same functional area of a lamp as recited in claim 5, wherein the first clear inner lens has a dermatoglyph on an outer surface and/or an inner surface.
7. The optical system for achieving two uniform lighting effects for a single functional area of a luminaire of claim 5, wherein the distance from the first light source to the diffuse internal lens is greater than the distance from the second light source to the second clear internal lens.
8. The optical system for achieving two uniform lighting effects for a single functional area of a lamp as recited in claim 5, wherein said first clear inner lens and said second clear inner lens are integrally formed first and second portions of a clear inner lens.
9. The optical system for realizing two uniform lighting effects in the same functional area of a lamp according to claim 1, wherein the first light source and/or the second light source is an LED light source.
10. The optical system for realizing two uniform luminous effects in the same functional area of a lamp as set forth in claim 5, wherein the outer surface of the first clear inner lens is provided with modeling patterns; alternatively, the first clear inner lens outer surface is provided with an optical pattern.
11. The optical system for realizing two uniform lighting effects in the same functional area of a lamp as defined in claim 10, wherein the modeling pattern is a piano key or a triangle pattern.
12. The optical system for realizing two uniform light-emitting effects in the same functional area of a lamp according to claim 10, wherein the optical pattern is a fish eye or a triangular pattern.
13. An automotive rear lamp having a tail lamp employing the optical system of any one of claims 1-2, 4-12.
14. An automotive backlight having a brake light employing the optical system of any one of claims 1-2, 4-12.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811237044.0A CN109827144B (en) | 2018-10-23 | 2018-10-23 | Optical system for realizing two uniform luminous effects in same functional area of lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811237044.0A CN109827144B (en) | 2018-10-23 | 2018-10-23 | Optical system for realizing two uniform luminous effects in same functional area of lamp |
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| CN109827144A CN109827144A (en) | 2019-05-31 |
| CN109827144B true CN109827144B (en) | 2023-09-26 |
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