阅读说明：本技术 一种实现功能复用的高效组合厚壁件光学系统 (Efficient combined thick-wall part optical system for realizing function multiplexing ) 是由 仝旋 于 2019-10-25 设计创作，主要内容包括：本发明提供一种实现功能复用的高效组合厚壁件光学系统,包括光源一、光源二、后置厚壁件和前置厚壁件,后置厚壁件设置在前置厚壁件的后面,后置厚壁件包括反射碗和后置厚壁件出光面,后置厚壁件出光面设置在反射碗的后部,光源一放置在反射碗的焦点处,前置厚壁件包括聚光器和前置厚壁件出光面,前置厚壁件出光面设置在聚光器的上端后部,光源二放置在聚光器的焦点处,前置厚壁件上还设置有半透半反微结构。通过使用半透半反微结构,即保证了光线的透射,也完成了光线的全反射,在实现功能复用的同时保证光线传播的可控性。可调节的微结构面积比例实现不同亮度功能,多层光学花纹的扩散提高了点亮均匀性,反射碗和聚光器提高了光学效率。(The invention provides an efficient combined thick-wall part optical system for realizing function multiplexing, which comprises a first light source, a second light source, a rear thick-wall part and a front thick-wall part, wherein the rear thick-wall part is arranged behind the front thick-wall part, the rear thick-wall part comprises a reflecting bowl and a light-emitting surface of the rear thick-wall part, the light-emitting surface of the rear thick-wall part is arranged at the rear part of the reflecting bowl, the first light source is arranged at the focus of the reflecting bowl, the front thick-wall part comprises a condenser and a light-emitting surface of the front thick-wall part, the light-emitting surface of the front thick-wall part is arranged at the rear part of the upper end of the condenser, the second light source is arranged at the focus of the condenser, and the front thick-wall part is also provided with. By using the semi-transparent semi-reflective microstructure, the transmission of light is ensured, the total reflection of the light is also completed, and the controllability of light transmission is ensured while the function multiplexing is realized. The adjustable microstructure area proportion realizes different brightness functions, the diffusion of multilayer optical patterns improves the lighting uniformity, and the reflection bowl and the condenser improve the optical efficiency.)

1. An efficient combined thick-wall optical system for realizing function multiplexing comprises a first light source (11), a second light source (12), a rear thick-wall part (2) and a front thick-wall part (3), wherein the rear thick-wall part (2) is arranged behind the front thick-wall part (3), the rear thick-wall part (2) comprises a reflecting bowl (4) and a rear thick-wall part light-emitting surface (6), the rear thick-wall part light-emitting surface (6) is arranged at the rear part of the reflecting bowl (4), the first light source (11) is arranged at a focus of the reflecting bowl (4), the front thick-wall part (3) comprises a condenser (5) and a front thick-wall part light-emitting surface (8), the front thick-wall part light-emitting surface (8) is arranged at the upper end rear part of the condenser (5), and the second light source (12) is arranged at the focus of the condenser (5), and is characterized in that: the rear side of the front thick-wall part (3) is also provided with a semi-transparent semi-reflective microstructure (7).

2. An efficient combined thick-walled optical system for achieving functional multiplexing as claimed in claim 1 wherein: the semi-transparent and semi-reflective micro structure (7) comprises at least one semi-reverse surface (72) and at least one semi-transparent surface (71), the semi-reverse surface (72) is a 45-degree plane, the semi-transparent surface (71) is a vertical plane, the semi-reverse surface (72) realizes total reflection of light, the semi-transparent surface (71) realizes transmission of light emitted from a rear thick-walled part (2) behind the semi-transparent surface, so that transmission of various light is realized, lighting multiplexing of various functions is completed, light emitted by a light source I (11) is converged into parallel light through a reflection bowl (4) and then is diffused to a semi-transparent light-emitting surface (6) of the rear thick-walled part for the first time, then reaches the semi-reflective micro structure (7), the light is transmitted to a front thick-walled part (3) through the semi-transparent surface (71) and is transmitted in the front thick-walled part, and finally the light is diffused again through surface patterns of the front thick-walled part (, and (3) emitting light to realize a function, wherein the light emitted by the second light source (12) is collimated by the condenser (5) to reach the semi-transparent semi-reflective microstructure (7) of the front thick-wall part (3), is totally reflected by the semi-reverse surface (72), is transmitted to the light emitting surface (8) of the front thick-wall part in the front thick-wall part (3), is diffused by the optical patterns on the surface and is optically emitted to realize another optical function.

3. An efficient combined thick-walled optical system for achieving functional multiplexing as claimed in claim 1 wherein: the planes of the semi-transparent surface (71) and the semi-reverse surface (72) have diffusion angles, so that the lighting uniformity is improved.

4. The optical system according to claim 1, wherein the rear thick-walled component light-emitting surface (6) is provided with a diffusion pattern; diffusion patterns are arranged on the semi-transparent semi-reflective microstructure (7) of the front thick-wall piece (3); the light emitting surface (8) of the front thick-wall part (3) is provided with diffusion patterns, and optical diffusion is performed more times, so that better uniformity is realized.

5. An efficient combined thick-walled optical system for achieving functional multiplexing as claimed in claim 1 wherein: the semi-transparent semi-reflective micro structure (7) on the front thick-wall part (3) and the light emergent surface (8) of the front thick-wall part are provided with dermatoglyphs.

6. An efficient combined thick-walled optical system for achieving functional multiplexing as claimed in claim 1 wherein: the number of the first light sources (11) is at least one, the first light sources (11) are all arranged at the focus of the optical structure of the rear thick-wall part (2) corresponding to the first light sources, the number of the second light sources (12) is at least one, and the second light sources (12) are all arranged at the focus of the optical structure of the front thick-wall part (3) corresponding to the second light sources.

7. An efficient combined thick-walled optical system for achieving functional multiplexing as claimed in claim 1 wherein: the color of the light source I (11) is amber, red or white, and the color of the light source II (12) is amber, red or white.

8. An efficient combined thick-walled optical system for achieving functional multiplexing as claimed in claim 1 wherein: the rear thick-wall part (2) is made of polycarbonate or polymethyl methacrylate; the front thick-wall part (3) is made of polycarbonate or polymethyl methacrylate.

Technical Field

The invention relates to the field of automobile illumination, in particular to an efficient combined thick-wall part optical system for realizing function multiplexing.

Background

In order to highlight the technological and artistic feelings of automobile modeling, the space proportion of the automobile lamp is continuously reduced. The lamps for automobile eyes are designed into slender lines, which not only can realize various ideas of stylists, but also saves a lot of space, and the reuse of different functions is increasingly popular. However, the compact space also causes great trouble to designers. The thick-wall part structure is mature in unique lighting effect and applied to the automobile signal lamp, can be designed into various curve shapes, occupies small space and is favored by designers.

At present, most functional multiplexing thick-walled parts in the market mainly adopt the defocusing design, two LEDs are placed near the focal length, and an optical system is shared to realize two functions. However, the light efficiency and the lighting effect of the design are poor due to the defocusing. Meanwhile, the close placement of two high-power LEDs can also affect the circuit design and the heat dissipation performance of the PCB, and indirectly increase the design cost. The newly designed invention realizes the multiplexing function of two thick-wall parts with different functions through curved surface near zero pasting, the method can only ensure the normal light emission of the front thick-wall part, the light emitting surface of the rear thick-wall part can only be a curved surface with similar light emitting surface of the front thick-wall part in order to match the structure of the front thick-wall part, and the light reaches the position and passes through two layers of curved surfaces to become disordered without chapters, thereby causing the uncontrollable lighting effect and lighting effect of the optical function of the rear thick-wall part, only being suitable for the function with low brightness requirement, such as a position lamp, and being incapable of being widely used.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide an efficient combined thick-wall part optical system for realizing function multiplexing, which realizes light transmission and total reflection through a semi-transparent semi-reflective micro-structure of a front thick-wall part, and ensures the controllability of light transmission while completing the multiplexing design of two functions. The reflecting bowl of the rear thick-wall part and the condenser of the front thick-wall part improve the optical efficiency, and the light-emitting surface patterns of the rear thick-wall part and the front thick-wall part provide uniform lighting effect. The semi-permeable surface and the semi-reverse surface have adjustable size proportion, and various combination designs of function multiplexing are realized.

The invention provides an efficient combined thick-wall optical system for realizing function multiplexing, which comprises a first light source, a second light source, a rear thick-wall part and a front thick-wall part, wherein the rear thick-wall part is arranged behind the front thick-wall part, the rear thick-wall part comprises a reflecting bowl and a light-emitting surface of the rear thick-wall part, the light-emitting surface of the rear thick-wall part is arranged at the rear part of the reflecting bowl, the first light source is arranged at the focus of the reflecting bowl, the front thick-wall part comprises a condenser and a light-emitting surface of the front thick-wall part, the light-emitting surface of the front thick-wall part is arranged at the rear part of the upper end of the condenser, the second light source is arranged at the focus of the condenser, and the front thick-wall part is also provided with a semi-transmitting and semi-reflecting microstructure.

The further improvement lies in that: the semi-transparent semi-reflective microstructure comprises at least one semi-reverse surface and at least one semi-transparent surface, wherein the semi-reverse surface is a 45-degree plane, the semi-transparent surface is a vertical plane, the semi-reverse surface realizes total reflection of light, the semi-transparent surface realizes transmission of light emitted by a rear thick-wall part behind the semi-transparent surface, so that multiple light transmission is realized, multiple function lighting multiplexing is completed, light emitted by a light source I is converged into parallel light through a reflection bowl and is subjected to first diffusion at a light-emitting surface of the rear thick-wall part, then the light reaches the semi-transparent semi-reflective microstructure, the light is transmitted through the semi-transparent surface and enters a front thick-wall part and is transmitted in the front thick-wall part, finally the light is diffused again through surface patterns on the light-emitting surface of the front thick-wall part, and the light. And the light emitted by the light source II is collimated by the condenser to reach the semi-transparent semi-reflective microstructure of the front thick-wall part, is totally reflected by the semi-reverse surface, is transmitted to the light-emitting surface of the front thick-wall part in the front thick-wall part, is diffused by the optical patterns on the surface and is optically emitted, so that the other optical function is realized.

The further improvement lies in that: the planes of the semi-transparent surface and the semi-reverse surface are provided with diffusion angles, so that the lighting uniformity is improved.

The further improvement lies in that: the semi-transparent semi-reflective microstructure on the front thick-wall part and the light-emitting surface of the front thick-wall part are provided with dermatoglyphs.

The further improvement lies in that: the number of the first light sources is at least one, the first light sources are all arranged at the focus of the optical structure of the rear thick-wall part corresponding to the first light sources, the number of the second light sources is at least one, and the second light sources are all arranged at the focus of the optical structure of the front thick-wall part corresponding to the second light sources.

The further improvement lies in that: the first light source is amber, red or white, and the second light source is amber, red or white.

The further improvement lies in that: the rear thick-wall part is made of polycarbonate or polymethyl methacrylate; the front thick-wall part is made of polycarbonate or polymethyl methacrylate.

The semi-transparent surface ensures the transmission of light, and the semi-reverse surface can also totally reflect the light, thereby truly realizing the optical function multiplexing. The adjustable semi-transparent and semi-reflective micro structure has the advantages that the semi-transparent surface and the semi-reverse surface are suitable for different brightness functions, the lighting uniformity is improved due to the diffusion of multilayer optical patterns, and the optical efficiency is improved due to the reflection bowl and the condenser. The planes of the semi-transparent surface and the semi-reverse surface can have diffusion angles, so that the lighting uniformity is improved.

The area size ratio of the semi-transparent surface and the semi-reflective surface of the semi-transparent and semi-reflective micro structure can be adjusted according to practical application, and the functional design of different brightness is facilitated. The rear thick-wall part can be used as a brake function, a steering lamp function or the like vehicle lamp function with high relative brightness requirement, and the front thick-wall part can be used as a position lamp function or the like vehicle lamp function with low relative brightness requirement if the projection area ratio of the semi-transparent surface and the semi-reflective surface in a YZ plane of a vehicle body coordinate system is large; if the projection area of the half reverse side in a YZ plane of a vehicle body coordinate system is large, the front thick-wall part can be used for a brake function and a steering lamp function, and the vehicle lamp function with high relative brightness requirements is realized, and the rear thick-wall part is used for a position lamp function, and the vehicle lamp function with low relative brightness requirements is realized; if the front and back functions are the functions with similar brightness requirements such as braking and steering, the projection areas of the semi-transparent surface and the semi-reverse surface in a YZ plane of a vehicle body coordinate system can be designed to be the same. The light inlet end of the rear thick-wall part is provided with a reflecting bowl, and the reflecting bowl can be changed into a condenser or other optical systems to converge light rays emitted by the light source and improve optical efficiency.

Diffusion patterns are arranged on the light-emitting surface of the rear thick-wall part; the semi-transparent semi-reflective microstructure of the front thick-wall part is provided with diffusion patterns; diffusion patterns are arranged on the light-emitting surface of the front thick-wall part. Compared with the optical system with the once-diffusion pattern arranged on the light-emitting surface in the prior art, the optical system has more times of optical diffusion and can realize better uniformity.

The light-emitting surface of the rear thick-wall part is provided with dermatoglyphs; the semi-transparent semi-reflective microstructure of the front thick-wall part is provided with dermatoglyph; and the light emergent surface of the front thick-wall part is provided with dermatoglyphs. Compared with the optical system with the once-diffusion dermatoglyph arranged on the light-emitting surface in the prior art, the optical system has more times of optical diffusion and can realize better uniformity.

The first light source can be amber to realize the function of a steering lamp, red to realize the functions of a tail lamp position lamp and a tail lamp stop lamp, and white to realize daytime running lamps, front position lamps and back running lamps. The color of the second light source can be amber to realize the function of a steering lamp, red to realize the functions of a tail lamp position lamp and a tail lamp stop lamp, and white to realize daytime running lamps, front position lamps and back running lamps.

The first light source and the second light source can adopt different colors; the same color class can also be adopted, and the specific models adopted by the first light source and the second light source are preferably different when the same color class is adopted, so as to realize multifunctional multiplexing, for example, the first light source and the second light source can both adopt red light sources, but the specific models of the first light source and the second light source are different, so that the functions of a tail lamp position lamp and a tail lamp stop lamp can be realized respectively; when the same color and the same category are adopted, the other implementation manner of the first light source and the second light source is that the light sources of the same type can be used, but the lighting brightness of the first light source and the lighting brightness of the second light source are different through PWM control to realize multifunctional multiplexing, and in this case, the functions of a tail lamp position lamp and a tail lamp brake lamp are preferably realized.

The invention has the beneficial effects that: the method avoids the defocusing problem caused by the design of a multifunctional common focus, and ensures that light sources realizing different functions can be positioned at the focus positions of respective optical systems; meanwhile, the semi-transparent semi-reflective microstructure also solves the problem of light transmission between two thick-wall parts, reduces stray light generated by light due to curved surface scattering, improves the collimation of the light, realizes the controllability of light transmission, and obviously improves the flexibility in optical design. The separately designed light source has improved heat dissipation performance and small heat loss. The vertical semi-transparent surface can completely transmit incident light, so that the light waste is reduced. The adjustment of the area size ratio can realize the requirement design of different functions and different brightness. The use of the reflecting bowl and the condenser improves the use efficiency of the LED, and the diffusion of the multilayer patterns improves the lighting uniformity.

Drawings

FIG. 1 is an isometric view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a cross-sectional view taken along line a-a of fig. 2 of the present invention.

Fig. 4 is a partially enlarged view of the area in fig. 3 of the present invention.

Fig. 5 is a schematic diagram of the present invention.

Wherein: 11-a first light source, 12-a second light source, 2-a rear thick-wall part, 3-a front thick-wall part, 4-a reflection bowl, 5-a condenser, 6-a light-emitting surface of the front thick-wall part, 7-a semi-transparent semi-reflective microstructure, 71-a semi-transparent surface, 72-a semi-reverse surface and 8-a light-emitting surface of the front thick-wall part.

Detailed Description

For the purpose of enhancing understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the present invention.

As shown in fig. 1-3, the present embodiment provides an optical system for a highly efficient combined thick-walled workpiece for realizing function multiplexing, which includes a first light source 11, a second light source 12, a rear thick-walled workpiece 2 and a front thick-walled workpiece 3, wherein the rear thick-walled workpiece 2 includes a reflective bowl 4 and a light-emitting surface 6 of the rear thick-walled workpiece, the front thick-walled workpiece 3 includes a condenser 5, a semi-transparent semi-reflective microstructure surface 7 and a light-emitting surface 8 of the front thick-walled workpiece, the first light source 11 is disposed at a focal point of the reflective bowl 4 of the rear thick-walled workpiece, the rear thick-walled workpiece 2 is disposed behind the front thick-walled workpiece 3, light emitted from the first light source 11 is converged into parallel light by the reflective bowl to reach the light-emitting surface 6 of the rear thick-walled workpiece, the first light is diffused by optical patterns on the surface, the light enters the semi-transparent semi-reflective microstructure 7 of the front thick-walled workpiece for the second diffusion, then enters the front thick-walled workpiece 3 to reach the light-, the light is diffused for the third time through the optical patterns on the surface, and the light is emitted out, so that an optical function is realized. Meanwhile, the second light source 12 is placed at the focus of the condenser 5 of the front thick-wall part 3, the light is collimated by the condenser 5 to reach the semi-transparent semi-reflective microstructure 5 of the front thick-wall part for total reflection, and is transmitted to the light-emitting surface 8 of the front thick-wall part in the front thick-wall part 3, and is diffused and optically emitted through the optical patterns on the surface, so that another optical function is realized. By using the semi-transparent semi-reflective microstructure, the transmission of light is ensured, the total reflection of the light is also completed, and the function multiplexing is finally realized. The adjustable microstructure area proportion realizes different brightness functions, the diffusion of multilayer optical patterns improves the lighting uniformity, and the reflection bowl and the condenser improve the optical efficiency.

As can be seen from the enlarged view of fig. 4, the semi-transparent and semi-reflective microstructure 7 is formed by combining a plurality of 45 ° planes (i.e., semi-reverse surfaces 72) and vertical planes (i.e., semi-transparent surfaces 71), each of which has a certain proportion in a unit dimension of 1mm, the 45 ° planes (i.e., semi-reverse surfaces 72) can totally reflect light, and the vertical planes (i.e., semi-transparent surfaces 71) can transmit light emitted from the rear thick-walled member 2 behind the vertical planes, so that two light transmission is realized, and two functions of lighting are completed. The two planes (i.e., the semi-reverse surface 72 and the semi-transparent surface 71) can both have a certain radian, so that the light diffusion is enhanced, and the lighting uniformity is improved. The part with large area ratio can be used as the function with high requirement on brightness, if the area of the vertical plane (namely the semi-transparent plane 71) is large, the rear thick-wall part can be used as the brake and the steering lamp, and the front thick-wall part can be used as the position function; if the area of the 45-degree plane (namely the half reverse surface 72) is large, the front thick-wall part can be used as a brake and a turn light, and the rear thick-wall part can be used as a position function; if the front and rear functions are similar to the braking and turning functions, the semi-transparent surface 71 and the semi-reverse surface 72 may be designed to have the same area.

Compared with the prior art in which the light transmission of the whole layer of curved surface is a probabilistic event, the controllability has a great defect, and the problem that the light which is not transmitted can generate stray light on the whole layer of curved surface is solved, in the transflective microstructure 7 of the present invention, the vertical plane (i.e., the semitransparent plane 71) enables the light emitted from the rear thick-walled member 2 to be transmitted through the vertical plane (i.e., the semitransparent plane 71) without generating stray light; in addition, when the whole layer of curved surface adopted by the prior art is designed and has problems in light shape, light effect and the like, the difficulty of adjusting the whole layer of curved surface with high precision is high when fine adjustment is needed, and the design flexibility is poor, the semi-transparent semi-reflective microstructure 7 of the invention has the advantages that a plurality of 45-degree planes (namely the semi-reverse surfaces 72) not only enable the light rays from the light source II 12 for realizing the second optical function to realize total reflection and transmit to the light-emitting surface 8 of the front thick-wall part, but also have adjustability and flexibility by replacing the original whole layer of curved surface with a plurality of semi-reverse surfaces 72; the design of the semi-transparent surfaces 71 and the semi-reverse surfaces 72 of the semi-transparent and semi-reflective microstructure 7 of the invention enables light transmission to be more controllable on the whole, optical effect to be more guaranteed, and flexibility to be more obvious.

The position of the light source 11 is at the focus of the reflecting bowl 4 of the rear thick-wall part 2, and the position of the light source 12 is at the focus of the condenser 4 of the front thick-wall part 3;

in the embodiment of the invention, the number of the light sources 11 is 7, and the number of the light sources 12 is 10. According to one implementation of the first embodiment of the present invention, the color of the light source 11 is red, so as to implement a position light function; the color of the light source 12 is amber, which implements a turn light function. The rear thick-wall part 2 with the adjustable semi-transparent semi-reflective microstructure combined thick-wall part optical system is made of Polycarbonate (PC), and the front thick-wall part 3 is made of Polycarbonate (PC).

The optical system of the invention not only avoids the defocusing problem caused by the design of the common focus when the multifunctional multiplexing is realized, but also enables the light sources to be positioned at the focus positions of the respective optical systems when different functions are realized; meanwhile, the semi-transparent semi-reflective microstructure also solves the problem of light transmission between two thick-wall parts, reduces stray light generated by light due to curved surface scattering, improves the collimation of the light, realizes the controllability of light transmission, and obviously improves the flexibility in optical design. The separately designed light source has improved heat dissipation performance and small heat loss. The vertical semi-transparent surface can completely transmit incident light, so that the light waste is reduced. The adjustment of the area size ratio of the semi-transparent surface 71 to the semi-reverse surface 72 can realize the required design of different functions and different brightness. The use of the reflecting bowl and the condenser improves the use efficiency of the LED, and the diffusion of the multilayer patterns improves the lighting uniformity.