Auxiliary reflection unit for realizing large-angle projection of light, vehicle lamp and vehicle

Abstract

The utility model discloses an auxiliary reflection unit for realizing wide-angle projection of light, a vehicle lamp and a vehicle, the auxiliary reflection unit is used for expanding the horizontal imaging range generated by an imaging system (1), the auxiliary reflection unit comprises an auxiliary reflection unit (2), the auxiliary reflection unit (2) is arranged on the side edge of the imaging system (1), and the auxiliary reflection unit (2) is arranged on the side edge of the imaging system (1). The auxiliary reflection unit (2) can receive and reflect part of incident light rays, and the irradiation angle of part of the incident light rays in the horizontal direction is enlarged. According to the utility model, one side or two sides of the imaging system are provided with the auxiliary reflection units, and the auxiliary reflection units can receive and reflect part of the emergent light emitted by the primary optical system, and achieve the purpose of enlarging the irradiation angle of part of the incident light in the horizontal direction.

Description

Technical Field

[0001] The utility model relates to the technical field of optical elements, and in particular to an auxiliary reflection unit for realizing large-angle projection of light. In addition, it also relates to a vehicle lamp and a vehicle. Background Art

[0002] As the demand for the width of the light pattern of automobile headlights increases day by day, the methods used in traditional headlight designs to achieve large-angle projection of light in the horizontal direction can be achieved through reflection or refraction. Among them, the refraction scheme: set the diffusion angle at the edge of the lens, but the diffusion angle and the diffusion area are limited, otherwise it will affect the imaging of the main light pattern area, especially the low beam, and affect the shape of its light and dark cutoff line; or add auxiliary refraction units on one or both sides of the lens. The reflection scheme achieves large-angle projection in the horizontal direction by reflecting the light emitted from the focus twice. However, the illumination scheme currently used has the following problems: it is impossible to project a wider illumination area in the horizontal direction; the left and right widths of the area projected at a close distance are not enough.

[0003] In view of this, there is an urgent need to design an auxiliary reflection unit for realizing large-angle projection of light to solve the above problems. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, the utility model provides an auxiliary reflection unit for realizing large-angle projection of light, which can increase the illumination width at a short distance.

[0006] According to the first aspect of the utility model, an auxiliary reflection unit for realizing large-angle projection of light is provided, which is used to expand the horizontal imaging range produced by the imaging system, including an auxiliary reflection unit, and the auxiliary reflection unit is arranged on the side of the imaging system so as to receive and reflect part of the incident light through the auxiliary reflection unit, and expand the irradiation angle of part of the incident light in the horizontal direction.

[0007] The beneficial effect of the utility model is that by arranging the auxiliary reflection unit on one side or both sides of the imaging system, the auxiliary reflection unit can receive and reflect part of the outgoing light emitted by the primary optical system and expand the irradiation angle of part of the incident light in the horizontal direction.

[0008] Preferably, the contour line of the auxiliary reflection unit is one or more free curves.

[0009] Further preferably, the tangent lines of each point on each of the free curves are different, and each of the tangent lines forms an angle with the horizontal direction.

[0010] Preferably, the auxiliary reflection unit has a guiding curve in the vertical direction to achieve diffusion of part of the incident light in the vertical direction.

[0011] Further preferably, the auxiliary reflection unit is a high-brightness metal part.

[0012] Preferably, the auxiliary reflection unit is a plastic part, and the surface of the plastic part is set to be an aluminum-plated surface.

[0013] A second aspect of the utility model provides a vehicle lamp, which adopts the auxiliary reflection unit for realizing large-angle projection of light as described in the first aspect of the utility model.

[0014] The third aspect of the utility model provides a vehicle, which adopts the headlight of the second aspect of the utility model, and the illumination range formed by the headlight corresponds to the illumination area within 10m in front of the vehicle, so as to increase the illumination width of the vehicle at a close distance.

[0015] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures specifically pointed out in the description, claims and drawings.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 A light path diagram in the horizontal direction of the auxiliary reflection unit for realizing large-angle projection of light in the utility model;

[0019] Figure 2 A light path diagram in the vertical direction of the auxiliary reflection unit for realizing large-angle projection of light in the utility model;

[0020] Figure 3 This is a light path diagram of an auxiliary reflection unit and an imaging system for realizing large-angle projection of light in the utility model.

[0021] Figure 4 Schematic diagram of the imaging system and the auxiliary reflection unit as a whole.

[0022] Reference numerals:

[0023] 1. Imaging system; 2. Auxiliary reflection unit. DETAILED DESCRIPTION

[0024] 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.

[0025] In the description of the present invention, it should be understood that the terms "top", "bottom", etc. 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 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 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 the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] See also Figure 1 to Figure 2 A specific embodiment of the utility model is an auxiliary reflection unit 2 for realizing large-angle projection of light. The auxiliary reflection unit 2 is used to expand the horizontal imaging range generated by the imaging system 1. It includes an auxiliary reflection unit 2. The auxiliary reflection unit 2 is arranged on the side of the imaging system 1, and the incident light can be received and reflected through the auxiliary reflection unit 2. When the incident light hits the auxiliary reflection unit 2, the auxiliary reflection unit 2 can guide the incident light in a vertical plane to realize the diffusion of the incident light in the vertical direction.

[0027] Specifically, the auxiliary reflection unit 2 is arranged on one side or both sides of the imaging system 1, and in the horizontal plane, the contour line of the auxiliary reflection unit 2 is one or more free curves, and the tangents of each point on each free curve are different, and each tangent forms an angle with the horizontal direction. The angle formed can be specifically designed according to the law of reflection or the position of the area to be irradiated, so that the imaging range formed is larger. It should be noted that, see Figure 4 The auxiliary reflection unit 2 and the imaging system 1 can also adopt an integrated structure, that is, the auxiliary reflection unit 2 is integrally injection molded and can be arranged on one side or both sides of the imaging system 1 to achieve the above-mentioned function. The integral injection molding method reduces the assembly deviation that may occur when the auxiliary reflection unit 2 and the imaging system 1 are assembled, and further ensures the stability of imaging.

[0028] More specifically, the auxiliary reflection unit 2 has a guide curve in the vertical direction, the curvature of the guide curve is designed according to the requirements of the up and down angles, and the guide curve part protrudes toward the imaging system 1. Therefore, when a beam of light passes through the reflection surface of the auxiliary reflection unit 2, the reflection angle formed in the up and down directions is larger, and thus the projection angle area generated in the up and down directions is larger. It should be noted that the auxiliary reflection unit 2 is formed by sweeping the contour line along the guide curve, and the shape of the guide curve can be designed and adjusted according to the incident angle and customer requirements, for example, it can be designed as a straight line or a curve.

[0029] In addition, in order to facilitate the auxiliary reflection unit 2 to reflect light, the material of the auxiliary reflection unit 2 can be set to a high-brightness metal part. Of course, the material of the auxiliary reflection unit 2 can also be set to a plastic part, and aluminum can be plated on the surface of the plastic part to achieve a better reflection effect.

[0030] A vehicle lamp according to a specific implementation of the utility model adopts the auxiliary reflection unit 2 for realizing large-angle projection of light as described in any of the above embodiments of the utility model, and therefore also has the above advantages.

[0031] See also Figure 3 A vehicle in a specific implementation of the utility model adopts the headlight described in any of the above embodiments of the utility model. The illumination range formed by the headlight corresponds to the illumination area within 10m in front of the vehicle. Therefore, when part of the outgoing light emitted by the primary optical system hits the auxiliary reflection unit 2, and according to the required illumination angle, the contour curves of the auxiliary reflection unit 2 in the horizontal and vertical directions are designed to meet the required illumination angle requirements. In addition, in addition to the requirements for the illumination area, customers usually have requirements for the illumination value of the headlight at a large angle. Therefore, the vehicle using the headlight can project to the required angle and meet the illumination value of the angle required by the user.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0033] The above description is based on the ideal embodiment of the utility model. Through the above 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. An auxiliary reflection unit for realizing large-angle projection of light, used to expand the horizontal imaging range produced by an imaging system (1), characterized in that: The auxiliary reflection unit (2) is arranged on the side of the imaging system (1) so as to receive and reflect part of the incident light through the auxiliary reflection unit (2) and expand the irradiation angle of part of the incident light in the horizontal direction; The contour line of the auxiliary reflection unit (2) is one or more free curves, the tangents of each point on each free curve are different, and each tangent forms an angle with the horizontal direction, and the auxiliary reflection unit (2) has a guiding curve in the vertical direction to achieve diffusion of part of the incident light in the vertical direction.

2. The auxiliary reflection unit for realizing large-angle projection of light according to claim 1, characterized in that: The auxiliary reflection unit (2) is a high-brightness metal part.

3. The auxiliary reflection unit for realizing large-angle projection of light according to claim 1, characterized in that: The auxiliary reflection unit (2) is a plastic part, and the surface of the plastic part is set as an aluminum-plated surface.

4. A vehicle lamp, characterized in that: The auxiliary reflection unit for realizing large-angle projection of light as described in any one of claims 1 to 3 is adopted.

5. A vehicle, characterized in that: The vehicle lamp according to claim 4 is adopted, and the illumination range formed by the vehicle lamp corresponds to the illumination area within 10 m in front of the vehicle, so as to increase the illumination width of the vehicle at a close distance.

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