Signal lamp optical structure
By using a combination of collimator, equal-division collimation unit and total reflection unit in the signal light, the problems of low light utilization and poor lighting uniformity are solved, and the full utilization of light and uniform use of 360° are achieved, which improves the performance and aesthetics of the signal light.
Patent Information
- Application Number
- CN202420899858.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The existing signal light optical structure cannot effectively utilize light, resulting in low light utilization and the light source cannot be used evenly within the 360° range, affecting lighting uniformity.
The collimator is arranged perpendicularly with the light outlet, combined with an equal separation collimation unit and a total reflection unit, the collimated light is equally divided and the direction is changed, and the light is collected to the light outlet through total reflection, so that the light is fully utilized.
It improves the utilization rate and lighting uniformity of light, achieves uniform use of light in the range of 360°, and enhances the applicability and aesthetics of the signal light.
Smart Images
Figure CN222634394U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicle lamp lighting, and in particular relates to an optical structure of a signal lamp. Background Art
[0002] In the process of arranging the optical structure of signal lights, in order to improve the lighting uniformity and the development trend of car lights with invisible light sources, the light source is often set vertically to the light outlet. After the light emitted by the light source is collimated by a collimating unit, a reflective surface or a refracting surface is used to guide the light to the light outlet. However, in this process, it cannot be guaranteed that most of the light can be used at the light outlet, and sometimes it cannot be guaranteed that the light emitted by the light source can be used within a 360° range, thereby reducing the utilization rate of the light. In order to solve such problems, a signal light optical structure is proposed. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art.
[0004] To this end, the utility model proposes a signal light optical structure, which has the advantages of flexibly changing the light angle, improving the utilization rate of light, and improving the lighting uniformity.
[0005] According to the optical structure of the signal light of the embodiment of the utility model, it includes: a collimator, an equally divided collimating unit, and a total reflection unit; the collimator is used to collimate the light emitted by the light source, the collimator is vertically arranged to the light outlet, the propagation direction of the light after collimation by the collimator is vertical to the final light exiting direction of the light at the light outlet, the equally divided collimating unit is located in the light emitting direction of the collimator, the equally divided collimating unit is located on one side of the light outlet, the equally divided collimating unit is used to divide the light after collimation by the collimator into several parts, and change the propagation direction of the light to reflect a part of the collimated light to the light outlet, the total reflection unit is located on one side of the equally divided collimating unit, the equally divided collimating unit is located between the light outlet and the total reflection unit, and the total reflection unit is used to receive another part of the collimated light after the direction is changed by the equally divided collimating unit, so as to totally reflect the collimated light to the light outlet.
[0006] According to one embodiment of the utility model, the equally divided collimating unit is composed of a plurality of equally divided surfaces, and the plurality of equally divided surfaces are arranged in a circular array with the optical axis of the collimator as the axis, and the equally divided surfaces are planes, and the plurality of equally divided surfaces are sequentially connected to form a pyramid, and the vertex of the pyramid is located on the optical axis of the collimator, and the vertex of the pyramid is located on a side close to the collimator, and the angle between the bisector of the equally divided surface and the optical axis of the collimator is 35°-55°.
[0007] According to an embodiment of the present invention, the number of the bisecting surfaces is three, namely a first bisecting surface, a second bisecting surface and a third bisecting surface, and the first bisecting surface faces the light outlet.
[0008] According to one embodiment of the utility model, the total reflection unit is composed of two reflection parts, the two reflection parts are symmetrically arranged to form a V-shaped structure, and the two reflection parts correspond to the second bisector surface and the third bisector surface respectively, so as to reflect the light reflected by the second bisector surface and the third bisector surface to the light outlet after two internal total reflections.
[0009] According to an embodiment of the present invention, the reflecting portion is formed by mutually perpendicular line segment A and line segment B, which are stretched along the normal direction of the plane where they are located to form a first reflecting surface and a second reflecting surface.
[0010] According to one embodiment of the utility model, in the horizontal plane, the acute angle between the stretching direction of the line segment A and the line segment B and the propagation direction of the light at the light outlet is β, and the angle between the light reflected by the second bisector surface and the third bisector surface in the horizontal plane and the light axis direction of the light outlet is α, and α+2β=180°.
[0011] According to an embodiment of the utility model, a refraction unit is provided at the light outlet, and a pattern is formed on the refraction unit to improve the uniformity of light output.
[0012] The beneficial effects of the utility model are as follows: the collimator is arranged vertically to the light outlet, and an equally divided collimating unit is used to reflect part of the light to the light outlet, thereby changing the direction of light propagation and avoiding seeing the light source in the direction of the light outlet, achieving aesthetics while avoiding installation limitations, making the optical structure arrangement of the signal light more flexible and increasing applicability; a total reflection unit is used to collect another part of the light reflected by the equally divided collimating unit and then fully reflect it to the light outlet, and the equally divided collimating unit and the total reflection unit are combined to reflect the light collimated by the collimator to the light outlet, thereby achieving full utilization of the light and improving the utilization rate of the light;
[0013] The equally divided collimating unit is used to divide the light collimated by the collimator into several equal parts, and then the total reflection unit reflects the light in parallel to the light outlet, thereby achieving uniform light distribution and improving the uniform lighting effect.
[0014] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by implementing the present invention.
[0015] 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
[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments of the present invention, in which:
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is a top view schematic diagram of the overall structure of the utility model;
[0019] Figure 3 It is a side view schematic diagram of the overall structure of the utility model;
[0020] Reference numerals:
[0021] 1. Collimator; 2. Equally divided collimation unit; 3. Total reflection unit; 4. Refraction unit. DETAILED DESCRIPTION
[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0023] 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 the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0024] 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.
[0025] The optical structure of the signal light of the embodiment of the utility model is described in detail below with reference to the accompanying drawings.
[0026] like Figure 1-Figure 3 As shown, the optical structure of the signal light according to the embodiment of the utility model includes: a collimator 1, an equally divided collimating unit 2, and a total reflection unit 3; the collimator 1 is used to collimate the light emitted by the light source, the collimator 1 is vertically arranged to the light outlet, the propagation direction of the light after collimation by the collimator 1 is vertical to the final light exiting direction of the light at the light outlet, the equally divided collimating unit 2 is located in the light emitting direction of the collimator 1, the equally divided collimating unit 2 is located on one side of the light outlet, the equally divided collimating unit 2 is used to divide the light after collimation by the collimator 1 into several parts, and change the propagation direction of the light to reflect a part of the collimated light to the light outlet, the total reflection unit 3 is located on one side of the equally divided collimating unit 2, the equally divided collimating unit 2 is located between the light outlet and the total reflection unit 3, the total reflection unit 3 is used to receive another part of the collimated light after the direction is changed by the equally divided collimating unit 2, so as to totally reflect the collimated light to the light outlet.
[0027] In this embodiment, the collimator 1 is arranged perpendicular to the light outlet, and the equally divided collimating unit 2 is used to reflect part of the light to the light outlet, thereby changing the direction of light propagation, avoiding seeing the light source in the direction of the light outlet, achieving aesthetics, and avoiding installation limitations, making the optical structure arrangement of the signal light more flexible, and increasing applicability; the total reflection unit 3 is used to collect the other part of the light reflected by the equally divided collimating unit 2 and then totally reflect it to the light outlet, and the equally divided collimating unit 2 and the total reflection unit 3 are combined to reflect the light collimated by the collimator 1 to the light outlet, thereby achieving full utilization of the light and improving the utilization rate of the light, and the light collimated by the collimator 1 is divided into several parts by the equally divided collimating unit 2, and then the total reflection unit 3 reflects the light in parallel to the light outlet, thereby achieving uniformity of light distribution and improving the uniform lighting effect.
[0028] The equally divided collimating unit 2 is composed of a plurality of equally divided surfaces, which are arranged in a circular array with the optical axis of the collimator 1 as the axis. The equally divided surfaces are planes, and the plurality of equally divided surfaces are connected in sequence to form a pyramid. The vertex of the pyramid is located on the optical axis of the collimator 1, and the vertex of the pyramid is located on a side close to the collimator 1. The angle between the bisector of the equally divided surface and the optical axis of the collimator 1 is 35°-55°.
[0029] Typically, the angle between the bisector of the bisecting surface and the optical axis of the collimator 1 is 45°.
[0030] In this embodiment, the light after collimation by the collimator 1 is consistent with the direction of the optical axis of the collimator 1. The bisecting surface can be triangular or fan-shaped as needed. When the bisecting surface is triangular, it can be formed into a pyramid. The vertex of the pyramid is located on the optical axis of the collimator 1, so that all the light on the collimator 1 is distributed on the bisecting surface, so as to improve the utilization rate of the light and avoid light waste. Figure 3 The angle between the vertical bisector of the bisecting surface and the optical axis of the collimator 1 is 35°-55°. By setting the angle, the angle of the light reflected by the bisecting surface can be controlled to meet the required angle of the light at the light outlet. The angle is preferably 45°, so that the bisecting surface reflects the light collimated by the collimator 1 at 90° to the optical axis of the collimator 1, that is, the light reflected from the collimator 1 to the light outlet is in the horizontal direction.
[0031] By using multiple equally divided surfaces of the same size, the number of light rays in each part of the light outlet is approximately equal, thereby improving the uniformity of lighting.
[0032] There are three equally divided surfaces, namely a first equally divided surface, a second equally divided surface and a third equally divided surface, and the first equally divided surface faces the light outlet.
[0033] The total reflection unit 3 is composed of two reflection parts, which are symmetrically arranged along the optical axis of the light outlet to form a V-shaped structure. The two reflection parts correspond to the second bisector surface and the third bisector surface respectively, so as to reflect the light reflected by the second bisector surface and the third bisector surface to the light outlet after two internal total reflections.
[0034] The reflecting portion is formed by mutually perpendicular line segments A and B, which are stretched along the normal direction of the plane where they are located to form a first reflecting surface and a second reflecting surface. The first reflecting surface is at the same height as the equally divided collimating unit 2, and the second reflecting surface is higher than the equally divided collimating unit 2.
[0035] In this embodiment, the first reflection surface is used to collect the light reflected by its corresponding equally divided surface, and then totally reflects the collected light to the second reflection surface, and the second reflection surface then totally reflects the light to the light outlet, that is, the light from the equally divided collimating unit 2 can reach the light outlet after two total reflections inside. Since the second reflection surface is higher than the equally divided collimating unit 2, when the second reflection surface totally reflects the light to the light outlet, the light is not disturbed by the equally divided collimating unit 2. Due to the 90° V-shaped reflection portion, total reflection can be achieved even if the light is incident at a small angle.
[0036] The light output width of the light output port can be achieved by adjusting the angle between the two reflecting parts and the optical axis of the light output port.
[0037] like Figure 2As shown, in the horizontal plane, the acute angle between the stretching direction of line segment A and line segment B and the propagation direction of the light at the light outlet is β, and the angle between the light reflected by the second and third bisectors in the horizontal plane and the light axis direction of the light outlet is α, α+2β=180°, so that the light is emitted in a direction parallel to the light outlet.
[0038] A refraction unit 4 is provided at the light outlet, and a pattern is formed on the refraction unit 4 to improve the uniformity of the light output.
[0039] The collimator 1 may be any optical unit capable of collimating light, such as a condenser, a lens, a reflector, etc.
[0040] 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 can be combined in any one or more embodiments or examples in a suitable manner.
[0041] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A signal light optical structure, characterized in that: include: A collimator (1), the collimator (1) being used to collimate the light emitted by the light source, the collimator (1) being arranged perpendicularly to the light outlet, and the propagation direction of the light after being collimated by the collimator (1) being perpendicular to the final light emission direction of the light from the light outlet; An equally divided collimating unit (2), the equally divided collimating unit (2) being located in the light emitting direction of the collimator (1), the equally divided collimating unit (2) being located on one side of the light outlet, the equally divided collimating unit (2) being used to divide the light collimated by the collimator (1) into a plurality of equally divided parts, and to change the propagation direction of the light so as to reflect a portion of the collimated light to the light outlet; A total reflection unit (3), the total reflection unit (3) being located on one side of the equally divided collimating unit (2), the equally divided collimating unit (2) being located between the light outlet and the total reflection unit (3), the total reflection unit (3) being used to receive another portion of the collimated light after the direction is changed by the equally divided collimating unit (2), so as to totally reflect the collimated light to the light outlet.
2. The signal light optical structure according to claim 1, characterized in that: The equally divided collimating unit (2) is composed of a plurality of equally divided surfaces, the plurality of equally divided surfaces are arranged in a circular array with the optical axis of the collimator (1) as the axis, the equally divided surfaces are planes, the plurality of equally divided surfaces are sequentially connected to form a pyramid, the apex of the pyramid is located on the optical axis of the collimator (1), the apex of the pyramid is located on a side close to the collimator (1), and the angle between the bisector of the equally divided surface and the optical axis of the collimator (1) is 35°-55°.
3. The signal light optical structure according to claim 2, characterized in that: The number of the bisecting surfaces is three, namely a first bisecting surface, a second bisecting surface and a third bisecting surface, and the first bisecting surface faces the light outlet.
4. The signal light optical structure according to claim 3, characterized in that: The total reflection unit (3) is composed of two reflection parts, which are symmetrically arranged to form a V-shaped structure. The two reflection parts correspond to the second bisecting surface and the third bisecting surface respectively, so as to reflect the light reflected by the second bisecting surface and the third bisecting surface to the light outlet after two internal total reflections.
5. The signal light optical structure according to claim 4, characterized in that: The reflecting portion is formed by a line segment A and a line segment B which are perpendicular to each other and are stretched along the normal direction of the plane where they are located to form a first reflecting surface and a second reflecting surface.
6. The signal light optical structure according to claim 5, characterized in that: In the horizontal plane, the acute angle between the stretching direction of the line segment A and the line segment B and the propagation direction of the light at the light outlet is β, and the angle between the light reflected by the second and third bisector planes in the horizontal plane and the light axis direction of the light outlet is α, α+2β=180°.
7. The signal light optical structure according to claim 6, characterized in that: A refraction unit (4) is provided at the light outlet, and a pattern is formed on the refraction unit (4) to improve the uniformity of light output.