Optical structure based on double-sided mirror and vehicle lamp

Abstract

The utility model relates to an optical structure and car light based on double -sided mirror. The car light includes outer lens, decorative ring, thick wall, double -sided mirror, upper PCBA circuit board, lower PCBA circuit board, lamp shell, wherein the lamp shell is the assembly main body, and the rest spare parts are directly or indirectly fixed on the lamp shell. Upper and lower PCBA circuit board is opposite arrangement, and double -sided mirror is arranged between two circuit boards along its axis. The LED on the upper and lower PCBA circuit board emits light after power on, and the light is reflected outward by the upper and lower reflecting surface of double -sided mirror, passes thick wall, outer lens and emits outward, thereby realizing the uniform lighting effect and the unique appearance modeling. The car light whole structure is simple, and the manufacturing and use cost are low, and the assembly difficulty is small, and the lighting effect is beautiful and multiple, and when being used as position light, the identification degree is high, and the science and technology feeling is strong.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, specifically to an optical structure and automotive lighting based on a double-sided reflector. Background Technology

[0002] Driven by the market and consumers' pursuit of individuality, fashion, and trendy appearances, more and more car position lights, in addition to meeting the lighting requirements stipulated by regulations, also need to incorporate lighting methods that are more in line with aesthetic and technological trends, as well as various different shapes.

[0003] The applicant previously developed a combined vehicle light that achieved multi-point illumination effects for daytime running lights, signal lights, and turn signals by combining a reflector array with a single thick-walled element (see CN218914684U for details). Building upon this, we have improved and optimized the reflectors and the corresponding light source, developing a new type of position light product. Utility Model Content

[0004] One objective of this invention is to provide an optical structure based on a double-sided reflector. This optical structure includes upper and lower PCBA circuit boards arranged opposite each other and a double-sided reflector positioned between the two PCBA circuit boards. The double-sided reflector includes an upper reflective surface and a lower reflective surface, wherein the upper reflective surface is inclined towards the upper PCBA circuit board, and the lower reflective surface is inclined towards the lower PCBA circuit board. Light sources are provided on both the upper and lower PCBA circuit boards. The light emitted from these light sources is reflected by the upper and lower reflective surfaces of the double-sided reflector to the same side (i.e., the reflection direction or light emission direction of the two reflective surfaces of the double-sided reflector is the same), thereby achieving a specific vehicle lighting function.

[0005] In the above scheme, the upper and lower PCBA circuit boards are arranged in parallel relative to each other, or tilted at a certain angle and arranged in a figure-eight shape relative to each other.

[0006] In the above scheme, the ends of the upper and lower reflecting surfaces of the double-sided mirror are connected together, and the cross-section of the joint is similar to a V-shape.

[0007] In the above scheme, the upper and lower reflecting surfaces of the double-sided mirror can be the same size or different, preferably different. Specifically, the width or area of ​​the upper reflecting surface is smaller than the width or area of ​​the lower reflecting surface, i.e., the upper surface is smaller than the lower surface.

[0008] In the above scheme, the upper and lower reflecting surfaces of the double-sided reflector can be flat, curved, or arc-shaped, preferably concave curved or arc-shaped.

[0009] In the above scheme, the optical structure also includes a thick wall, which is arranged in the reflected light path or light output direction of the double-sided mirror, that is, in front of the double-sided mirror.

[0010] In the above scheme, the cross-section of the thick wall is trapezoidal or approximately trapezoidal, wherein the upper base and lower base of the trapezoid are the light-emitting surface and the light-receiving surface, respectively. To achieve a better lighting effect, textured or optical patterns (such as corn kernel patterns) are provided on each surface of the thick wall.

[0011] In the above scheme, the thick-walled, double-sided reflectors have the same or similar shapes, all being slender, elongated, straight, L-shaped, or arc-shaped.

[0012] In the above scheme, the optical structure also includes an outer lens, a decorative ring, and a lamp housing. The PCBA circuit board, double-sided reflector, thick wall, and decorative ring are all directly or indirectly fixed to the lamp housing. The lamp housing is sealed to the outer lens, thereby completing the assembly of the entire lamp.

[0013] The second objective of this utility model is to provide a vehicle lamp, such as a position light, equipped with the aforementioned optical structure.

[0014] Compared with existing similar position light products, this utility model improves the traditional single reflective surface of the vehicle light into a V-shaped combination of upper and lower reflective surfaces. Combined with two PCBA circuit boards on the upper and lower sides, it forms a unique optical structure. The light emitted by the LED light source on the upper and lower PCBA circuit boards is reflected by double-sided reflectors, converges in the same direction, passes through the optically patterned surface of the thick wall, and finally exits from the outer lens, achieving a uniform position light illumination effect. This improved position light can achieve illumination effects of relatively complex patterns such as "L" shapes within limited space and without adding a new optical system. This position light has many advantages, including simple overall structure, low manufacturing and usage costs, easy assembly, beautiful and diverse illumination effects, high visibility, and a strong sense of technology, resulting in good economic benefits. Attached Figure Description

[0015] Figure 1 This is an overall schematic diagram of the position light described in this utility model.

[0016] Figure 2 for Figure 1 A sectional view along line AA.

[0017] Figure 3 This is a schematic diagram of the optical path of the position lamp described in this utility model.

[0018] Figure 4 This is a front view of a double-sided reflector.

[0019] Figure 5 This is a schematic diagram illustrating the lighting effect of the position light described in this utility model.

[0020] Attached reference numerals: 1-Outer lens, 2-Decorative ring, 3-Thick wall, 4-Double-sided reflector, 5-Upper PCBA circuit board, 6-Lower PCBA circuit board, 7-Lamp housing, 8-Textured texture, 9-Optical pattern. Detailed Implementation

[0021] To enable those skilled in the art to fully understand the technical solution and beneficial effects of this utility model, the following detailed description is provided in conjunction with specific embodiments and accompanying drawings. It should be emphasized that these embodiments and drawings are merely some implementations of this utility model. Besides these, this utility model can have many other implementations, and any simple improvements or substitutions based on these embodiments will fall within the protection scope of this utility model.

[0022] Prior to this application, the optical structures formed by the combination of traditional thick walls and reflectors had their light-emitting patterns strictly limited by the shape of the thick wall and the installation space, making it difficult to meet the current demand for diverse shapes. To solve this problem, the inventors changed the reflector from a single reflective surface to a combination of two reflective surfaces, and added textures to the light-incident surface and sides of the L-shaped thick wall, as well as optical patterns to the front surface of the L-shaped thick wall, ultimately achieving the desired effect. Figure 5 The position light shown is L-shaped and provides uniform illumination. The improved position light meets optical functional regulations, accommodates the client's unique aesthetic design requirements, and is also cost-effective.

[0023] Therefore, the position light provided by this utility model is as follows: Figure 1-5 As shown, the main components include an outer lens 1, a decorative ring 2, a thick wall 3, a double-sided reflector 4, an upper PCBA circuit board 5, a lower PCBA circuit board 6, and a lamp housing 7. The upper PCBA circuit board 5 and the lower PCBA circuit board 6 are fixedly connected to the double-sided reflector 4 by positioning pins and screws. The double-sided reflector 4 is fixedly connected to the lamp housing 7 by positioning pins and screws. The thick wall 3 is fixedly connected to the decorative ring 2 by clips. The decorative ring 2 is fixedly connected to the lamp housing 7 by positioning pins and screws. The outer lens 1 is sealed to the lamp housing 7 with sealant, thus completing the assembly of the entire lamp.

[0024] The outer lens 1 and the thick wall 3 are both injection molded from transparent plastic (such as PC, PMMA, etc.), while the decorative ring 2, the double-sided reflector 4, and the lamp housing 7 are all injection molded from opaque plastic (such as ABS, etc.). The main function of the decorative ring 2 is to shield and decorate. A through hole is provided in the middle of the decorative ring 2, and the light-emitting surface of the thick wall 3 is located in the through hole, which facilitates the outward emission of light.

[0025] like Figure 1-2 As shown, the thick-walled structure 3 is L-shaped, with an approximate trapezoidal cross-section, where the upper base is the light-emitting surface and the lower base is the light-receiving surface. Optical patterns 9, such as corn kernels, are provided on the light-emitting surface of the thick-walled structure 3, while skin textures 8 are provided on the light-receiving surface and the side surface (waist of the trapezoid) of the thick-walled structure 3.

[0026] The shape of the double-sided mirror is as follows Figure 4 As shown, it includes a relatively short upper reflecting surface and a relatively long lower reflecting surface, with a cross-section at the junction resembling a V-shape (e.g., Figure 3-4 The upper reflecting surface of the double-sided reflector faces upward at an angle toward the upper PCBA circuit board 5, and the lower reflecting surface faces downward at an angle toward the lower PCBA circuit board 6. LED light sources are installed on both the upper PCBA circuit board 5 and the lower PCBA circuit board 6.

[0027] like Figure 3 As shown, the light-emitting principle of the car headlight is as follows: the LEDs on the upper PCBA circuit board 5 and the lower PCBA circuit board 6 are lit up simultaneously or separately. The light is reflected to the right by the upper and lower reflective surfaces of the double-sided reflector 4, passes through the thick wall 3 and the outer lens 1 and is emitted outward, thereby achieving a uniform lighting effect and a unique shape.

Claims

1. An optical structure based on a double-sided mirror, characterized in that: The optical structure includes PCBA circuit board a, PCBA circuit board b, and a double-sided reflector. PCBA circuit board a and PCBA circuit board b are arranged opposite to each other, and a light source is provided on both PCBA circuit board a and PCBA circuit board b. The double-sided reflector includes a reflecting surface m and a reflecting surface n, wherein the reflecting surface m is inclined toward PCBA circuit board a, the reflecting surface n is inclined toward PCBA circuit board b, and the reflection directions of the reflecting surface m and the reflecting surface n are oriented toward the same light emission direction.

2. The optical structure as described in claim 1, characterized in that: PCBA circuit board a and PCBA circuit board b are arranged in parallel relative to each other, or are arranged in a figure-eight shape at a certain angle.

3. The optical structure as described in claim 1, characterized in that: The reflecting surfaces m and n of the double-sided mirror are connected at one end, and the cross-section of the joint is approximately V-shaped.

4. The optical structure as described in claim 1, characterized in that: In a double-sided mirror, the width or area of ​​one of the reflecting surfaces is smaller than the width or area of ​​the other reflecting surface.

5. The optical structure as described in claim 1, characterized in that: The reflecting surfaces m and n of the double-sided mirror are either planes or curved surfaces.

6. The optical structure as described in claim 1, characterized in that: The optical structure also includes a thick wall, which is arranged in the light-emitting direction of the double-sided mirror.

7. The optical structure as described in claim 6, characterized in that: The cross-section of the thick wall is trapezoidal or approximately trapezoidal, and textures or optical patterns are provided on each surface of the thick wall.

8. The optical structure as described in claim 1, characterized in that: The optical structure also includes an outer lens, a decorative ring, and a lamp housing. PCBA circuit board a, PCBA circuit board b, double-sided reflector, and decorative ring are all directly or indirectly fixed to the lamp housing, and the lamp housing is sealed to the outer lens.

9. A vehicle light, characterized in that: The headlight is equipped with the optical structure described in any one of claims 1-8.

10. The vehicle light as described in claim 9, characterized in that: The headlights mentioned are specifically position lights.

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