Bifocal car lamp thick-wall part

Abstract

The utility model belongs to the technical field of car lamps, and particularly relates to a bifocus car lamp thick-wall piece which comprises a body, a first end face, a second end face, a third end face and a fourth end face. The light emitting part is arranged on the end surface opposite to the first end surface; the light incidence parts are arranged on the first end face side by side, each light incidence part comprises a total reflection part, a first refraction part and a second refraction part, the first refraction part comprises two refraction faces, the two refraction faces are adjacent to each other, the two refraction faces are provided with focuses respectively, the total reflection part wraps the periphery of the first refraction part, and the second refraction part wraps the periphery of the second refraction part; the second refraction part is connected with the outer edge of the first refraction part and the inner edge of the total reflection part, the distance between the first refraction part and the light emitting part is defined as L1, the distance between the joint of the second refraction part and the inner edge of the total reflection part and the light emitting part is defined as L2, L2 is larger than L1, and L2 is larger than L2. The bifocus car lamp thick-wall piece has the effects that two light colors are not out of focus, light emitting is efficient, and lighting is uniform.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle lamps, and in particular relates to a double-focus vehicle lamp thick-walled part. Background Art

[0002] With the rapid development of automobile lighting technology, users are pursuing diversified shapes of lamps. At the same time, production costs and efficiency are also urgent problems that various lamp manufacturers need to solve. At present, in the field of automotive lighting, functional reuse solutions, such as steering and position functions, when sharing a light outlet, most adopt direct or reflective solutions. LED light is emitted after passing through a series of structures. Regardless of the direct or reflective concentrator solution, since the concentrator has only one focus, at least one of the two light colors will be out of focus, resulting in energy loss, low light efficiency, high power consumption, and also causing deviations in the light types of each function. Utility Model Content

[0003] The technical problem to be solved by the utility model is that at least one of the two light colors will be out of focus, thereby causing energy loss, low light efficiency and high power consumption.

[0004] To this end, the utility model provides a dual-focus vehicle lamp thick-walled component, comprising:

[0005] A body, defining an end face of the body as a first end face;

[0006] a light emitting portion, the light emitting portion being arranged on an end surface opposite to the first end surface;

[0007] A light entrance portion, wherein a plurality of the light entrance portions are arranged side by side on the first end face, the light entrance portion comprises a total reflection portion, a first refraction portion and a second refraction portion, the first refraction portion comprises two refraction surfaces, the two refraction surfaces are adjacent to each other, and the two refraction surfaces respectively have focal points, the total reflection portion is wrapped around the first refraction portion, the second refraction portion is respectively connected to the outer edge of the first refraction portion and the inner edge of the total reflection portion, the distance between the first refraction portion and the light exit portion is defined as L1, the distance between the connection between the second refraction portion and the inner edge of the total reflection portion and the light exit portion is defined as L2, and L2 is greater than L1.

[0008] Furthermore, the two refractive surfaces are lens surfaces, the straight edges of the two refractive surfaces are adjacent to each other, the arc edges of the two refractive surfaces are connected to the second refractive portion, and the two focal points are respectively located at positions of the two refractive surfaces close to the straight edges.

[0009] Furthermore, the second refractive portion is cylindrical, and the two axial ends of the second refractive portion are respectively connected to the outer edge of the first refractive portion and the inner edge of the total reflection portion, and the diameter of the connection between the second refractive portion and the outer edge of the first refractive portion is defined as D1, and the diameter of the connection between the second refractive portion and the inner edge of the total reflection portion is defined as D2, and D1 is greater than D2.

[0010] Furthermore, the total reflection portion includes a plurality of total reflection surfaces, and the total reflection surfaces are arranged in an array and connected through outer edges to form the total reflection surface.

[0011] Furthermore, the total reflection surface forms a bulge in a direction away from the light emitting portion.

[0012] Furthermore, the light emitting portion includes a plurality of light emitting surfaces, and the light emitting surfaces are arranged in an array and connected through outer edges to form the light emitting surfaces.

[0013] Furthermore, the light emitting surface forms a protrusion in a direction away from the first end surface.

[0014] Furthermore, the axis of the second refractive portion is perpendicular to the end face opposite to the first end face.

[0015] The technical solution adopted by the utility model to solve its technical problems is:

[0016] The beneficial effects of the utility model are:

[0017] 1. The thick-walled parts of the dual-focus headlights are in the form of dual foci, that is, the focus of one part of the refractive surface and the focus of the other part of the refractive surface are two independent foci, and the two independent foci correspond to different light colors respectively, so that the two light colors are not out of focus, thereby achieving efficient light output and uniform lighting.

[0018] 2. The light incident part is composed of a total reflection part, a first refraction part and a second refraction part. The light emitted from the two focal points is processed by total reflection + refraction to achieve a positive light pattern effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural schematic diagram of a thick-walled part of a dual-focus vehicle lamp of the utility model;

[0021] Figure 2 It is a cross-sectional view of a thick-walled part of a dual-focus vehicle lamp of the utility model;

[0022] Figure 3 It is a top view of the thick-walled part of the dual-focus vehicle lamp of the utility model;

[0023] Figure 4It is a side view of the thick-walled part of the dual-focus vehicle lamp of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the light emitting surface of the utility model;

[0025] Figure 6 It is a schematic structural diagram of the first refraction part and the second refraction part of the utility model;

[0026] Figure 7 This utility model Figure 6 Enlarged view of point A in the middle.

[0027] In the figure: 1, main body; 2, light output part; 3, light input part; 4, total reflection part; 5, first refraction part; 6, second refraction part; 7, refraction surface; 8, focus; 9, total reflection surface; 10, light output surface; 11, light input space. DETAILED DESCRIPTION

[0028] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0029] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example:

[0032] like Figures 1 to 7 As shown, a double-focus 8-car lamp thick-walled component includes: a body 1, one end face of the body 1 is defined as a first end face; a light emitting portion 2, the light emitting portion 2 is arranged on the end face opposite to the first end face; a light input portion 3, a plurality of light input portions 3 are arranged side by side on the first end face, the light input portion 3 includes a total reflection portion 4, a first refraction portion 5 and a second refraction portion 6, the first refraction portion 5 includes two refraction surfaces 7, the two refraction surfaces 7 are adjacent, the two refraction surfaces 7 have focal points 8 respectively, the total reflection portion 4 covers the first refraction portion 5 Around, the second refractive portion 6 is connected with the outer edge of the first refractive portion 5 and the inner edge of the total reflection portion 4 respectively, and the distance between the first refractive portion 5 and the light output portion 2 is defined as L1, and the distance between the connection between the second refractive portion 6 and the inner edge of the total reflection portion 4 and the light output portion 2 is defined as L2, and L2 is greater than L1, so that the first refractive portion 5 is recessed into the main body 1, thereby forming a light entrance space 11, and the incident light is emitted from the two focal points 8 and enters the light entrance space 11 or is directly projected onto the first refractive portion 5.

[0033] The two refractive surfaces 7 are lens surfaces, specifically, they are formed by cutting and splicing two lens surfaces, the straight edges of the two refractive surfaces 7 are adjacent to each other, the arc edges of the two refractive surfaces 7 are connected to the second refractive portion 6, and the two focal points 8 are respectively located at the positions of the two refractive surfaces 7 close to the straight edges. It should be noted that a part of the incident light emitted from the focal point 8 is refracted by the two refractive surfaces 7 to directly form a collimated light, and is further projected to the light output portion 2.

[0034] The second refractive portion 6 is cylindrical, and the two axial ends of the second refractive portion 6 are respectively connected to the outer edge of the first refractive portion 5 and the inner edge of the total reflection portion 4. The diameter of the connection between the second refractive portion 6 and the outer edge of the first refractive portion 5 is defined as D1, and the diameter of the connection between the second refractive portion 6 and the inner edge of the total reflection portion 4 is defined as D2, and D2 is greater than D1. It should be noted that the above-mentioned design of one end with a larger diameter and the other end with a smaller diameter can ensure that the other part of the incident light emitted from the focus 8 enters the light entrance space 11, and can be accurately irradiated to the total reflection portion 4 after passing through the second refractive portion 6, so as to carry out the next step of light processing.

[0035] The total reflection portion 4 includes a plurality of total reflection surfaces 9 , which are arranged in an array and connected by outer edges to form a total reflection surface 9 .

[0036] The total reflection surface 9 is convex in a direction away from the light emitting portion 2 .

[0037] The light emitting portion 2 includes a plurality of light emitting surfaces 10 , which are arranged in an array and connected by outer edges to form the light emitting surfaces 10 .

[0038] The light emitting surface 10 is convex in the direction away from the first end face, forming an arc. It should be noted that the light rays totally reflected by the total reflection portion 4 are all collimated light rays and are parallel to each other, and the collimated light rays propagate in a direction perpendicular to the light emitting surface 10; it should also be noted that the propagation direction of the light before passing through the light emitting surface 10 and the light after refraction through the light emitting surface 10 does not change, but is further refracted through the arc-forming light emitting surface 10, thereby ensuring that the final emitted light has a good light shape.

[0039] The axis of the second refractive portion 6 is perpendicular to the end face opposite to the first end face.

[0040] In summary, based on the above-mentioned ideal embodiment of the utility model, through the above-mentioned description, relevant staff can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of the utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A thick-walled part for a dual-focus vehicle lamp, characterized in that: include: A body (1), wherein an end surface of the body (1) is defined as a first end surface; A light emitting portion (2), the light emitting portion (2) being arranged on an end surface opposite to the first end surface; A light input portion (3), wherein a plurality of the light input portions (3) are arranged side by side on the first end face, wherein the light input portion (3) comprises a total reflection portion (4), a first refractive portion (5) and a second refractive portion (6), wherein the first refractive portion (5) comprises two refractive surfaces (7), wherein the two refractive surfaces (7) are adjacent to each other, and each of the two refractive surfaces (7) has a focus (8), wherein the total reflection portion (4) is wrapped around the first refractive portion (5), and the second refractive portion (6) is connected to the outer edge of the first refractive portion (5) and the inner edge of the total reflection portion (4), respectively; wherein the distance between the first refractive portion (5) and the light output portion (2) is defined as L1, and the distance between the connection between the second refractive portion (6) and the inner edge of the total reflection portion (4) and the light output portion (2) is defined as L2, and L2 is greater than L1.

2. A bifocal headlight thick-walled part as claimed in claim 1, characterized in that: The two refractive surfaces (7) are lens surfaces, the straight edges of the two refractive surfaces (7) are adjacent to each other, the arc edges of the two refractive surfaces (7) are connected to the second refractive portion (6), and the two focal points (8) are respectively located at positions of the two refractive surfaces (7) close to the straight edges.

3. A bifocal headlight thick-walled part as claimed in claim 1, characterized in that: The second refractive portion (6) is cylindrical, and the two axial ends of the second refractive portion (6) are respectively connected to the outer edge of the first refractive portion (5) and the inner edge of the total reflection portion (4), and the diameter of the connection between the second refractive portion (6) and the outer edge of the first refractive portion (5) is defined as D1, and the diameter of the connection between the second refractive portion (6) and the inner edge of the total reflection portion (4) is defined as D2, and D2 is larger than D1.

4. A bifocal headlight thick-walled part as claimed in claim 1, characterized in that: The total reflection portion (4) comprises a plurality of total reflection surfaces (9), which are arranged in an array and connected by outer edges to form the total reflection surface (9).

5. A bifocal headlight thick-walled part as claimed in claim 4, characterized in that: The total reflection surface (9) forms a bulge in a direction away from the light exiting portion (2).

6. A bifocal headlight thick-walled part as claimed in claim 1, characterized in that: The light emitting portion (2) comprises a plurality of light emitting surfaces (10), which are arranged in an array and connected via outer edges to form the light emitting surfaces (10).

7. A bifocal headlight thick-walled part as claimed in claim 6, characterized in that: The light emitting surface (10) forms a bulge in a direction away from the first end surface.

8. A bifocal headlight thick-walled part as claimed in claim 3, characterized in that: The axis of the second refractive portion (6) is perpendicular to the end face opposite to the first end face.

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