Optical system for enlarging light-emitting area by using thick-wall piece and reflecting surface

Abstract

The invention provides an optical system for enlarging a light-emitting area by using a thick-wall part and a reflecting surface and a use method thereof. The antenna mainly comprises a PCB (Printed Circuit Board) (1), a thick-wall piece (3) and a reflecting surface (4), and light-emitting surface patterns are uniformly distributed on the thick-wall piece (3) and the reflecting surface (4). According to the invention, a plurality of composite optical elements are combined into a whole to form a thick-wall part and a reflecting surface optical system which can realize that a plurality of total reflection, refraction, reflection and diffusion patterns are matched and do not influence the direction of emergent light rays, so that a light ray lightening area is expanded; the technical problems that the lighting range of a lateral light-in thick-wall part is small, and lighting of light-emitting surfaces of transverse and longitudinal areas is not uniform are solved, and the technical effects of uniformly lighting a large-range light-emitting surface and enlarging the lighting range are achieved.

Description

Technical Field

[0001] The present invention belongs to the field of optical systems, and in particular, relates to an optical system which utilizes thick-walled parts and reflecting surfaces to expand the light-emitting area. Background Art

[0002] Thick-walled parts systems have always been popular with automakers because they are efficient, transparent, uniform, and can adapt to the needs of changing shapes. Compared with traditional reflective optical systems, they look more advanced in appearance. As the shape of headlights tends to be more inclined on the fixed side, higher requirements are placed on the optical system of thick-walled parts in terms of efficiency, lighting range, and uniformity.

[0003] At present, there have been some studies on thick-walled parts systems, and the existing relevant technical achievements are:

[0004] Uniformly lit thick-walled component system and vehicle lamp (patent document CN220540926U) This patent document discloses a uniformly lit thick-walled component system and vehicle lamp, but the longitudinal lighting area of ​​this technical solution is small and large-area lighting cannot be achieved.

[0005] like Figure 1 The figure shows a schematic diagram of the structure of the conventional side-light-entering total-reflection thick-walled component. The longitudinal region can only illuminate a smaller area of ​​the light-emitting surface, and cannot achieve the effect of illuminating a larger range.

[0006] In view of the technical problems existing in the prior art, the present invention proposes an optical system which utilizes thick-walled parts and reflective surfaces to expand the light-emitting area. Summary of the invention

[0007] In view of the defects in the prior art, an object of the present invention is to provide an optical system that utilizes thick-walled parts and reflective surfaces to expand the light-emitting area.

[0008] The optical system for enlarging the light emitting area by using thick-walled parts and reflective surfaces provided by the present invention comprises: a PCB board 1, an LED light source 2, a thick-walled part 3 and a reflective surface 4;

[0009] The LED light source 2 is fixedly arranged on the PCB board 1;

[0010] One side of the thick-walled member 3 is connected to one side of the reflecting surface 4;

[0011] The light emitted by the LED light source 2 can be reflected by the thick-walled member 3 and then irradiated onto the reflective surface 4 .

[0012] Preferably, an optical surface assembly 300 is provided on the thick-walled component 3, and the optical surface assembly 300 includes: a thick-walled component light incident surface 31, a thick-walled component total reflection surface 32, and a thick-walled component light emitting surface 33;

[0013] The thick-walled component light emitting surface 33 is arranged at one end of the thick-walled component 3 adjacent to the reflecting surface 4; the thick-walled component light incident surface 31 and the thick-walled component total reflecting surface 32 are arranged at the other end of the thick-walled component 3;

[0014] The light emitted by the LED light source 2 is refracted by the light incident surface 31 of the thick-walled part and then enters the thick-walled part 3 through the air medium. After the light is irradiated on the total reflection surface 32 of the thick-walled part and is totally reflected, the angle of the light changes and the light is collimated into parallel light and propagates horizontally toward the light exit surface 33 of the thick-walled part.

[0015] Preferably, a reflective surface pattern 41 is provided on the reflective surface 4 .

[0016] Preferably, the reflective surface pattern 41 is an optical pattern with aluminum plating on the reflective surface 4 .

[0017] Preferably, the thick-walled component light emitting pattern 33 comprises: a thick-walled component transverse light emitting pattern 331 and a thick-walled component longitudinal light emitting pattern 332; the two patterns are arranged alternately and will not affect the emitting direction of the light rays.

[0018] Preferably, the material of the thick-walled member 3 is a transparent medium such as PC or PMMA.

[0019] Preferably, the optical parameters of the total reflection surface 32 of the thick-walled component are calculated by simulation software based on the direction of the light refracted into the thick-walled component 3, so that the light after total reflection can continue to propagate in parallel to the light emitting surface 33 of the thick-walled component in the horizontal direction.

[0020] Preferably, the transverse light-emitting pattern 331 of the thick-walled part has an arc.

[0021] Preferably, the reflective surface pattern 41 is curved.

[0022] The present invention also provides a method for using an optical system for expanding the light emitting area, wherein the optical system for expanding the light emitting area by using a thick-walled member and a reflective surface provided by the present invention comprises:

[0023] Step S1: When the horizontal light inside the thick-walled component 3 is irradiated to the transverse light-emitting pattern 331 of the thick-walled component, the light continues to be refracted into the air in the horizontal direction, lighting up the entire light-emitting surface 33 of the thick-walled component;

[0024] Step S2: When the horizontal light inside the thick-walled part 3 is irradiated to the longitudinal light-emitting pattern 332 of the thick-walled part, the light is totally reflected on the longitudinal light-emitting pattern 332 of the thick-walled part, and the light after total reflection propagates downward in the vertical direction, and after being refracted into the air, it continues to be irradiated in the vertical direction to the reflective surface pattern 41. The vertical light is reflected after being irradiated on the reflective surface pattern 41, and the reflected light propagates in the horizontal direction to light up the entire reflective surface 4 area.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention is composed of a plurality of composite optical elements to form a thick-walled component and a reflective surface optical system that can realize a variety of total reflection, refraction, reflection, and diffusion patterns that cooperate with each other without affecting the direction of the light emitting light.

[0027] 2. The present invention can expand the light illuminating area, thus solving the technical problems of small illuminating range of thick-walled parts with side light input and uneven illuminating of the light emitting surface in the horizontal and vertical areas.

[0028] 3. The present invention is provided with different light-emitting surface patterns, which has the technical effect of uniformly lighting a large range of light-emitting surfaces and expanding the lighting range.

[0029] 4. The present invention adds an aluminum-plated reflective surface under the thick-walled parts and makes a special design for the light-emitting pattern of the thick-walled parts, which can effectively expand the lighting area and improve the uniformity of the overall lighting effect, solving the problem that the lighting range of the existing side-light-input full-reflection thick-walled parts is limited and only a smaller area of ​​the light-emitting surface can be illuminated in the longitudinal area. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0031] Figure 1 This is a schematic diagram of a side-light-entering thick-walled component in the prior art.

[0032] Figure 2 A side view of an optical system that utilizes thick-walled components and reflective surfaces to expand the light-emitting area.

[0033] Figure 3 A side view of an optical system that utilizes thick-walled components and reflective surfaces to expand the light-emitting area.

[0034] Figure 4 A front view of an optical system that utilizes thick-walled components and reflective surfaces to expand the light-emitting area.

[0035] Figure 5 A top view of an optical system that uses thick-walled components and reflective surfaces to expand the light-emitting area.

[0036] Figure 6 Rear view of an optical system that uses thick-walled components and reflective surfaces to expand the light-emitting area.

[0037] Figure 7 Schematic diagram of the internal optical path of a thick-walled component.

[0038] Figure 8 Schematic diagram of the light path of the transverse light-emitting pattern of thick-walled parts.

[0039] Fig. 9 Schematic diagram of the central total reflection light path.

[0040] Fig.10 Schematic diagram of the optical pattern distribution on the light-emitting surface.

[0041] Fig.11 Schematic diagram of reflecting surface blocking stray light.

[0042] DETAILED DESCRIPTION

[0043] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0044] like Figure 2 , Figure 3 As shown, an embodiment of the present invention provides an optical system that uses a thick-walled component and a reflective surface to expand the light-emitting area, including a PCB board 1, an LED light source 2, a thick-walled component 3 and a reflective surface 4;

[0045] The LED light source 2 is fixedly arranged on the PCB board 1;

[0046] One side of the thick-walled member 3 is connected to one side of the reflecting surface 4;

[0047] An optical surface assembly 300 is disposed on the thick-walled component 3, and the optical surface assembly 300 includes: a thick-walled component light incident surface 31, a thick-walled component total reflection surface 32, and a thick-walled component light emitting surface 33;

[0048] The thick-walled component light emitting surface 33 is arranged at one end of the thick-walled component 3 adjacent to the reflecting surface 4; the thick-walled component light incident surface 31 and the thick-walled component total reflecting surface 32 are arranged at the other end of the thick-walled component 3;

[0049] Furthermore, if Fig.10 As shown, the reflecting surface 4 is provided with a reflecting surface pattern 41; the reflecting surface pattern 41 is an optical pattern with aluminum plating on the reflecting surface 4; the thick-walled component light-emitting pattern 33 includes: a thick-walled component transverse light-emitting pattern 331 and a thick-walled component longitudinal light-emitting pattern 332; the thick-walled component transverse light-emitting pattern 331 is represented by white, and the thick-walled component longitudinal light-emitting pattern 332 is represented by shadow; the two patterns are arranged in a staggered manner, which will not affect the emitting direction of the light rays, and can also ensure the uniformity of the lighting effect;

[0050] The light emitted by the LED light source 2 is refracted through the light incident surface 31 of the thick-walled member and then enters the thick-walled member 3 through the air medium; specifically, Figure 7 The figure shows the internal optical path of the thick-walled component of the present invention; the figure shows that the light emitted by the LED light source 2 enters the thick-walled component 3 after being refracted through the light incident surface 31 of the thick-walled component, and after the light is irradiated on the total reflection surface 32 of the thick-walled component and is totally reflected, the angle of the light changes, and the light is collimated into parallel light, propagating in the horizontal direction toward the light exit surface 33 of the thick-walled component.

[0051] Furthermore, the material of the thick-walled part 3 is a transparent medium such as PC, PMMA, etc.; the transparent medium has the following properties: in the transparent medium, the total reflection principle is used, that is, when the light enters the air through the medium, when the incident angle is greater than the critical angle, the light will be totally reflected on the incident surface, thereby changing the propagation direction of the light, so that the light continues to propagate in the medium without being refracted into the air; specifically, the critical angle is arcsin (n2 / n1), n2 is the refractive index of the thick-walled part material medium, and n1 is the refractive index of air;

[0052] Furthermore, the optical parameters of the total reflection surface 32 of the thick-walled part are calculated by simulation software based on the direction of the light refracted into the thick-walled part 3, so that the light after total reflection continues to propagate in parallel to the light-emitting surface 33 of the thick-walled part in the horizontal direction;

[0053] Furthermore, if Figure 8 , Fig. 9 As shown, the present invention also provides a method for using an optical system for expanding the light emitting area, using the above optical system for expanding the light emitting area by using a thick-walled member and a reflective surface, comprising:

[0054] Step S1: When the horizontal light inside the thick-walled component 3 is irradiated to the transverse light-emitting pattern 331 of the thick-walled component, the light continues to be refracted into the air in the horizontal direction, lighting up the entire light-emitting surface 33 of the thick-walled component;

[0055] Step S2: When the horizontal light inside the thick-walled part 3 is irradiated to the longitudinal light-emitting pattern 332 of the thick-walled part, the light is totally reflected on the longitudinal light-emitting pattern 332 of the thick-walled part. The totally reflected light propagates downward in the vertical direction, refracts into the air, and then continues to irradiate the reflective surface pattern 41 in the vertical direction. The vertical light is reflected after irradiating the reflective surface pattern 41. The reflected light propagates in the horizontal direction, lighting up the entire reflective surface 4 area.

[0056] The above steps S1 and S2 are performed in no particular order;

[0057] Furthermore, the transverse light-emitting pattern 331 of the thick-walled member has an arc, so that the light-emitting light has a certain diffusion angle, and the entire light-emitting surface 33 of the thick-walled member can be illuminated more evenly;

[0058] Furthermore, the reflective surface pattern 41 has an arc, so that the light has a certain diffusion angle, which can more evenly illuminate the entire reflective surface 4 area;

[0059] Specifically, Fig.10 As shown, a schematic diagram of the optical pattern distribution of the light-emitting surface; half of it is the thick-walled light-emitting pattern 33, and the other half is the reflective surface pattern 41;

[0060] In summary, the present invention provides an optical system and a method of use that utilize thick-walled parts and reflective surfaces to expand the light-emitting area. The system is composed of a plurality of composite optical elements and is integrated into a whole. A special optical pattern is designed on the light-emitting surface 33 of the thick-walled part, so that part of the light is emitted in a horizontal direction and part of the light is emitted in a vertical direction. The horizontally emitted light can illuminate the light-emitting surface 33 area of ​​the thick-walled part, and the vertically emitted light is emitted in a horizontal direction after being reflected by the reflective surface pattern 41, so as to illuminate the reflective surface 4 area. Both the light-emitting surface 33 and the reflective surface 4 of the thick-walled part are illuminated. An optical system of thick-walled parts and reflective surfaces that can realize a variety of total reflection, refraction, reflection, and diffusion patterns is comprehensively formed, so that the light-emitting area is expanded, and technical problems such as the small lighting range of thick-walled parts with side light input and uneven lighting of the light-emitting surface in the horizontal and longitudinal areas are solved. The system has the technical effect of uniformly lighting a large range of light-emitting surfaces and expanding the lighting range.

[0061] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be arbitrarily combined with each other.

Claims

1. An optical system that uses thick-walled parts and reflective surfaces to expand the light-emitting area, characterized in that: include: PCB board (1), LED light source (2), thick-walled component (3) and reflecting surface (4); The LED light source (2) is fixedly arranged on the PCB board (1); One side of the thick-walled member (3) is connected to one side of the reflecting surface (4); The light emitted by the LED light source (2) can be reflected by the thick-walled member (3) and then irradiated onto the reflecting surface (4).

2. The optical system for enlarging the light emitting area by using thick-walled parts and reflective surfaces according to claim 1, characterized in that: An optical surface assembly (300) is arranged on the thick-walled member (3), and the optical surface assembly (300) comprises: a thick-walled member light incident surface (31), a thick-walled member total reflection surface (32), and a thick-walled member light emitting surface (33); The thick-walled component light emitting surface (33) is arranged at one end of the thick-walled component (3) adjacent to the reflecting surface (4); the thick-walled component light incident surface (31) and the thick-walled component total reflecting surface (32) are arranged at the other end of the thick-walled component (3); The light emitted by the LED light source (2) is refracted through the thick-walled component light incident surface (31) and then enters the thick-walled component (3) through the air medium. After the light is irradiated on the total reflection surface (32) of the thick-walled component and is totally reflected, the angle of the light changes and the light is collimated into parallel light, which propagates in the horizontal direction toward the thick-walled component light exit surface (33).

3. The optical system for enlarging the light emitting area by using thick-walled parts and reflective surfaces according to claim 2, characterized in that: The reflecting surface (4) is provided with a reflecting surface pattern (41).

4. The optical system for enlarging the light emitting area by using thick-walled parts and reflective surfaces according to claim 3, characterized in that: The reflecting surface pattern (41) is an optical pattern with aluminum plating on the reflecting surface (4).

5. The optical system for enlarging the light emitting area by using thick-walled parts and reflective surfaces according to claim 2, characterized in that: The thick-walled component light emitting pattern (33) comprises: a thick-walled component transverse light emitting pattern (331) and a thick-walled component longitudinal light emitting pattern (332); the two patterns are arranged in a staggered manner and will not affect the emission direction of the light rays.

6. The optical system for enlarging the light emitting area by using thick-walled parts and reflective surfaces according to claim 1, characterized in that: The material of the thick-walled piece (3) is a transparent medium such as PC or PMMA.

7. The optical system for enlarging the light emitting area by using thick-walled parts and reflective surfaces according to claim 2, characterized in that: The optical parameters of the total reflection surface (32) of the thick-walled component are calculated by simulation software based on the direction of light refracted into the thick-walled component (3), so that the light after total reflection can continue to propagate in parallel to the light emitting surface (33) of the thick-walled component in the horizontal direction.

8. The optical system for enlarging the light emitting area by using thick-walled parts and reflective surfaces according to claim 4, characterized in that: The transverse light-emitting pattern (331) of the thick-walled part has an arc.

9. The optical system for enlarging the light emitting area by using thick-walled parts and reflective surfaces according to claim 3, characterized in that: The reflective surface pattern (41) has a curvature.

10. A method for using an optical system for expanding a light emitting area, using the optical system for expanding a light emitting area by using a thick-walled member and a reflective surface as claimed in any one of claims 1 to 9, comprising: Step S1: When the horizontal light inside the thick-walled component (3) is irradiated onto the transverse light-emitting pattern (331) of the thick-walled component, the light continues to be refracted into the air in the horizontal direction, lighting up the entire light-emitting surface (33) of the thick-walled component; Step S2: When the horizontal light inside the thick-walled part (3) is irradiated onto the longitudinal light-emitting pattern (332) of the thick-walled part, the light is totally reflected on the longitudinal light-emitting pattern (332) of the thick-walled part. The totally reflected light propagates downward in the vertical direction, refracts into the air, and then continues to be irradiated onto the reflective surface pattern (41) in the vertical direction. The vertical light is reflected after being irradiated onto the reflective surface pattern (41). The reflected light propagates in the horizontal direction, lighting up the entire reflective surface (4) area.

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