Optical structure with depth effect and vehicle lamp

Abstract

The utility model belongs to the technical field of car lamps, and particularly relates to an optical structure with a depth effect and a car lamp, the optical structure comprises a light source, a first transparent sheet and a second transparent sheet which are sequentially arranged along the light emitting direction, a reflecting film is arranged on the side surface, facing the second transparent sheet, of the first transparent sheet, and hollow patterns are arranged on the reflecting film; a semi-transparent and semi-reflective film is arranged on the side face, facing the first transparent sheet, of the second transparent sheet. The design of the first transparent thin sheet and the second transparent thin sheet is adopted to replace a thick-wall structure in a traditional scheme, multiple times of reflection and refraction of light in a transparent medium are converted into multiple times of reflection and refraction in air, the lightening effect is guaranteed, and meanwhile the weight and the manufacturing cost of the automobile lamp are reduced; and through the reflecting film and the semi-transparent and semi-reflecting film which are oppositely arranged, the problem that more stray light is generated when light is reflected by the thick-wall side wall is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, and in particular to an optical structure and a vehicle lamp with depth effect. Background Art

[0002] With the rapid development of the automotive industry and consumers' increasing demand for personalized and intelligent vehicles, automotive lighting technology has undergone unprecedented changes. As a vital component of the vehicle, headlights not only fulfill the basic functions of illumination and signal transmission, but have also become a key element in showcasing the aesthetics and technological appeal of automotive design. In recent years, the application of new light sources such as LEDs (light-emitting diodes) and lasers, as well as continuous advancements in optical design and manufacturing technologies, have led to increasingly innovative designs and lighting effects for headlights, adding more possibilities to automotive design.

[0003] Traditional flat headlight designs are no longer able to meet the diverse needs of the market. Consumers are beginning to expect headlights to present a more three-dimensional and vivid 3D effect. This 3D lighting effect not only enhances vehicle recognition but also provides drivers with clearer and more intuitive lighting and signal indications at night or in low-light environments.

[0004] However, to achieve the 3D lighting effect of the headlights, a common solution is to coat the front and back surfaces of the thick wall of the headlights with a semi-transparent and semi-reflective film and a reflective film respectively. This design can use optical principles to reflect and refract light multiple times inside the thick wall, thereby forming a lighting effect with a three-dimensional sense of depth. However, in order to achieve a better lighting effect, this solution often requires the use of thicker walls, which undoubtedly greatly increases the weight and manufacturing cost of the headlights. At the same time, when light passes through the side walls of the thick wall, it will undergo total reflection, and some stray light will be generated after imaging, affecting the imaging effect. Utility Model Content

[0005] The technical problem to be solved by the present invention is: in order to solve the technical problem in the prior art that the 3D depth lighting effect of the headlight leads to heavy weight and high manufacturing cost, the present invention provides an optical structure and a headlight with a depth effect, which reduces the weight and cost while ensuring the lighting effect of the headlight.

[0006] The technical solution adopted by the utility model to solve the technical problem is: an optical structure with a depth effect, which includes: a light source, a first transparent sheet and a second transparent sheet arranged in sequence along the light output direction,

[0007] A reflective film is provided on the side of the first transparent sheet facing the second transparent sheet, and the reflective film is provided with a hollow pattern;

[0008] A semi-transparent and semi-reflective film is provided on the side of the second transparent sheet facing the first transparent sheet;

[0009] Among them, the light emitted by the light source passes through the first transparent sheet and the hollow pattern in sequence and then hits the semi-transparent and semi-reflective film. Part of the light passes through the semi-transparent and semi-reflective film and the second transparent sheet in sequence and is emitted, and the other part of the light is reflected onto the reflective film and then reflected onto the semi-transparent and semi-reflective film through the reflective film.

[0010] The specific technical effect is: the design of the first transparent sheet and the second transparent sheet is used to replace the thick-walled structure in the traditional solution, and the multiple reflections and refractions of light inside the transparent medium are transformed into multiple reflections and refractions in the air, which reduces the weight and manufacturing cost of the car lamp while ensuring the lighting effect. In addition, the relatively arranged reflective film and semi-transparent and semi-reflective film solves the problem of light reflecting off the thick side wall to generate a lot of stray light.

[0011] Furthermore, there is a distance between the reflective film and the semi-transparent and semi-reflective film.

[0012] The specific technical effect is: in order to change the depth effect according to actual usage, the greater the distance between the reflective film and the semi-transparent semi-reflective film, the farther the image is after the light is emitted, and the smaller the distance between the reflective film and the semi-transparent semi-reflective film, the closer the image is after the light is emitted.

[0013] Furthermore, the hollow pattern is a convex hollow pattern.

[0014] Furthermore, the hollow pattern is a concave hollow pattern.

[0015] The specific technical effect is: according to actual usage, the hollow pattern is designed with different concave and convex patterns, and the imaging effect is different, which can make the imaging result more diverse.

[0016] Furthermore, the first transparent sheet and the second transparent sheet are both made of transparent materials.

[0017] A vehicle lamp, comprising an optical structure with a depth effect as described in any one of the above items.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The design of a first transparent sheet and a second transparent sheet replaces the thick-walled structure in the traditional solution, and replaces the multiple reflections and refractions of light inside the transparent medium with multiple reflections and refractions in the air. This reduces the weight and manufacturing cost of the headlights while ensuring the lighting effect. In addition, the relatively arranged reflective film and semi-transparent and semi-reflective film solves the problem of light reflecting off the thick side walls to generate a lot of stray light. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic structural diagram of Example 1 of the present utility model;

[0022] Figure 2 for Figure 1 Right view of the reflective film;

[0023] Figure 3 This is a schematic structural diagram of Example 2 of the present utility model;

[0024] Figure 4 This is a schematic structural diagram of Example 3 of the present utility model;

[0025] Figure 5 This is a structural diagram of Example 4 of the present utility model.

[0026] In the figure: 1, light source; 2, first transparent sheet; 201, reflective film; 202, hollow pattern; 3, second transparent sheet; 301, semi-transparent and semi-reflective film. DETAILED DESCRIPTION

[0027] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] like Figures 1 to 2 FIG. 1 is a preferred embodiment 1 of the present invention. This embodiment provides an optical structure and a vehicle lamp with a depth effect, comprising: a light source 1, a first transparent sheet 2, and a second transparent sheet 3 arranged in sequence along the light emitting direction; a reflective film 201 is provided on the side of the first transparent sheet 2 facing the second transparent sheet 3, and a hollow pattern 202 is provided on the reflective film 201; and a semi-transparent and semi-reflective film 301 is provided on the side of the second transparent sheet 3 facing the first transparent sheet 2.

[0031] The light from the light source 1 sequentially passes through the first transparent sheet 2 and the hollow pattern 202 before striking the translucent and semi-reflective film 301. A portion of the light sequentially passes through the translucent and semi-reflective film 301 and the second transparent sheet 3, exiting the image close to the human eye. Another portion of the light is reflected from the translucent and semi-reflective film 301 onto the reflective film 201, and then from the reflective film 201 back onto the translucent and semi-reflective film 301. Each time the light strikes the translucent and semi-reflective film 301, it is split into two parts: one portion exits directly to form an image, while the other portion is reflected from the reflective film 201, then from the reflective film 201 back onto the translucent and semi-reflective film 301. The greater the number of reflections, the farther the image is from the human eye, thus creating a depth-of-field lighting effect.

[0032] It should be noted here that the design of the first transparent sheet 2 and the second transparent sheet 3 replaces the thick-walled structure in the traditional solution, and transforms the multiple reflections and refractions of light inside the transparent medium into multiple reflections and refractions in the air, thereby reducing the weight and manufacturing cost of the headlight while ensuring the lighting effect. In addition, the relatively arranged reflective film 201 and semi-transparent and semi-reflective film 301 solves the problem of light reflecting off the thick side walls to generate a lot of stray light.

[0033] In this embodiment, the structure of the hollow pattern 202 can be designed according to actual needs. For example, the hollow pattern 202 can be circular, square, five-pointed star, polygonal, etc.

[0034] It should be noted here that the hollow pattern 202 can be a convex pattern or a concave pattern. Different concave and convex patterns have different imaging effects, which can make the imaging results more diverse.

[0035] In this embodiment, the first transparent sheet 2 and the second transparent sheet 3 are both made of transparent materials.

[0036] It should be noted here that the transparent material may be glass, polymethyl methacrylate (PMMA, commonly known as acrylic or organic glass) or polycarbonate (PC) or the like.

[0037] In this embodiment, there is a gap between the reflective film 201 and the semi-transmissive reflective film 301 .

[0038] It should be noted here that: in order to change the depth effect according to actual practical conditions, the greater the distance between the reflective film 201 and the semi-transparent semi-reflective film 301, the farther the image is from the human eye after the light is emitted, that is, the closer the image is to the second transparent sheet 3; the smaller the distance between the reflective film 201 and the semi-transparent semi-reflective film 301, the closer the image is to the human eye after the light is emitted, that is, the farther the image is from the second transparent sheet 3.

[0039] In this embodiment, the side surface of the first transparent sheet 2 facing the second transparent sheet 3 may be a flat surface, a curved surface, a curved surface, or a shape formed by splicing a plurality of curved surfaces.

[0040] In this embodiment, the side surface of the second transparent sheet 3 facing the first transparent sheet 2 is a plane, a curved surface, a curved surface, or a shape formed by splicing a plurality of curved surfaces.

[0041] Preferably, if Figure 1 As shown, the side surface of the first transparent sheet 2 facing the second transparent sheet 3 is a curved surface, which is convex toward the second transparent sheet 3 , and the side surface of the second transparent sheet 3 facing the first transparent sheet 2 is a flat surface.

[0042] Example 2:

[0043] like Figure 3 As shown, the difference from Example 1 is that:

[0044] The side surface of the first transparent sheet 2 facing the second transparent sheet 3 is a curved surface, which is concave toward the light source 1 , and the side surface of the second transparent sheet 3 facing the first transparent sheet 2 is a flat surface.

[0045] Example 3:

[0046] like Figure 4 As shown, the difference from Example 1 is that:

[0047] The side of the first transparent sheet 2 facing the second transparent sheet 3 is a curved surface, which is convex toward the second transparent sheet 3 . The side of the second transparent sheet 3 facing the first transparent sheet 2 is a curved surface, which is convex toward the first transparent sheet 2 .

[0048] Example 4:

[0049] like Figure 5 As shown, the difference from Example 1 is that:

[0050] The side of the first transparent sheet 2 facing the second transparent sheet 3 is a curved surface, which is convex toward the second transparent sheet 3 , and the side of the second transparent sheet 3 facing the first transparent sheet 2 is a curved surface, which is concave toward the direction away from the first transparent sheet 2 .

[0051] Example 5:

[0052] A vehicle lamp, comprising an optical structure with a depth effect as described in any one of the above embodiments.

[0053] Compared with the prior art, the beneficial effects of the present invention are:

[0054] The design of the first transparent sheet 2 and the second transparent sheet 3 replaces the thick-walled structure in the traditional solution, and replaces the multiple reflections and refractions of light inside the transparent medium with multiple reflections and refractions in the air. This reduces the weight and manufacturing cost of the headlight while ensuring the lighting effect. In addition, the relatively arranged reflective film 201 and semi-transparent and semi-reflective film 301 solves the problem of more stray light generated by light reflecting off the thick side walls.

[0055] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of this utility model. The technical scope of this utility model is not limited to the content of the specification and must be determined according to the scope of the claims.

Claims

1. An optical structure with a depth effect, characterized in that: include: A light source (1), a first transparent sheet (2), and a second transparent sheet (3) are sequentially arranged along a light emitting direction. A reflective film (201) is provided on the side of the first transparent sheet (2) facing the second transparent sheet (3), and a hollow pattern (202) is provided on the reflective film (201); A semi-transparent and semi-reflective film (301) is provided on the side of the second transparent sheet (3) facing the first transparent sheet (2); The light emitted by the light source (1) passes through the first transparent sheet (2) and the hollow pattern (202) in sequence and then hits the semi-transparent and semi-reflective film (301); a portion of the light passes through the semi-transparent and semi-reflective film (301) and the second transparent sheet (3) in sequence and then exits; another portion of the light is reflected onto the reflective film (201) and then reflected onto the semi-transparent and semi-reflective film (301) through the reflective film (201).

2. The optical structure with depth effect according to claim 1, wherein: There is a gap between the reflective film (201) and the semi-transparent semi-reflective film (301).

3. The optical structure with depth effect according to claim 1, wherein: The hollow pattern (202) is a convex hollow pattern.

4. The optical structure with depth effect according to claim 1, wherein: The hollow pattern (202) is a concave hollow pattern.

5. The optical structure with depth effect according to claim 1, wherein: The first transparent sheet (2) and the second transparent sheet (3) are both made of transparent materials.

6. A vehicle lamp, characterized in that: The optical structure comprises an optical structure with a depth effect as described in any one of claims 1 to 5.

Images