Reflection type optical structure suitable for function multiplexing

Abstract

The utility model belongs to the technical field of car lamps, and particularly relates to a reflective optical structure suitable for function multiplexing, which comprises at least one reflecting part, at least one reflecting part and at least one reflecting part, the section line of the reflecting part in the vertical plane comprises a parabola, and the parabola has a focus F; the reflection part is formed by extending the section line along the normal direction of the plane where the section line is located, and the reflection part is provided with a focal line; a light source capable of emitting at least two light colors is arranged on the focal line, and the light colors emitted by the light source comprise the first light color and the second light color; the light emitting centers of the first light color and the second light color are located on the focal line of the reflecting part, and after light emitted by the first light color and the second light color is reflected by the reflecting part, the projection of the light in the horizontal plane is emitted by taking the respective directrix as the original point. The reflective optical structure suitable for function multiplexing has the effects of improving the lighting effect and improving the uniformity.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of car light, specifically related to a kind of reflection type optical structure suitable for function multiplexing. BACKGROUND

[0002] In the field of optical technology, reflection type optical system is widely used in various illumination and projection equipment.The conventional reflection type optical system often uses free-form surface or parabolic mirror to realize the projection of light.

[0003] However, the reflection type function multiplexing system commonly used now has:

[0004] 1, a single reflection unit corresponds to multiple light colors of LED, and the focal point of the reflection unit is located in the middle of the light emitting center of two light colors;Or the focal point of the reflection unit is selected at the light emitting center of an important function light color;

[0005] 2, a reflection unit corresponds to a light color, and the focal point of each reflection unit coincides with the light emitting center of a light color;

[0006] For scheme 1, at least one light color is off-focus, which reduces the uniformity of lighting;For scheme 2, there is at least one reflection unit corresponding to a light color that is incomplete, i.e. INVENTION CONTENT

[0007] The utility model aims at providing a kind of reflection type optical structure suitable for function multiplexing to solve the technical problem that the light emitted by the LED of a light color cannot be utilized by the corresponding reflection unit, the light efficiency of this scheme is reduced, and the uniformity is also poor, to improve the light efficiency and the uniformity.

[0008] To solve the above technical problems, the utility model provides a kind of reflection type optical structure suitable for function multiplexing, comprising:

[0009] At least one reflection part;

[0010] The cross section of the reflection part in vertical plane contains parabola, and the parabola has focal point F;

[0011] The reflection part is formed by extending the cross section along the normal of the plane, and the reflection part has focal line;

[0012] The light emitting center of the first light color and the second light color is located on the focal line of the reflection part, and at least the light source capable of emitting two light colors is arranged on the focal line, and the light color includes the first light color and the second light color;

[0013] The projection of the light rays emitted by the first light color and the second light color in the horizontal plane after being reflected by the reflection part is emitted from the respective focal lines as the origin.

[0014] Further, the reflection part comprises a plurality of reflection units, the reflection units are extended along the normal of the plane by the cross section in the vertical plane, and each reflection unit corresponds to one light color.

[0015] Further, each reflection unit corresponds to two light colors, and the two light colors are emitted by two single-core LEDs or one two-core LED.

[0016] Further, the reflection units are arranged in a stepped manner.

[0017] Further, the focal lengths of the reflection units are the same or different.

[0018] Further, the surface of the reflection part is a smooth curved surface or is provided with diffusion patterns.

[0019] Further, the reflection units corresponding to different light colors are arranged in a spaced, continuous or intermittent manner.

[0020] The beneficial effects of the present application are as follows:

[0021] 1. The light sources of different light colors are not out of focus, and can be utilized by the reflection part as much as possible, so that the uniformity is good and the efficiency is higher.

[0022] 2. The LED light emitting surfaces of different light colors can be arranged very compactly, which means that the dark area width between the same light colors is shorter, and the uniformity is also improved from another angle.

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0025] Fig. 1 is a structural schematic view of the reflection type optical structure suitable for function multiplexing of the present application;

[0026] Fig. 2 is a structural schematic view of the reflection unit of the reflection type optical structure suitable for function multiplexing of the present application;

[0027] Fig. 3 This is a side view of the reflective unit of this utility model.

[0028] In the picture:

[0029] 1. Reflecting part; 11. Focal point F; 12. Parabola; 13. Focal line;

[0030] 2. Light source;

[0031] 3. Reflection unit. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] Example 1:

[0034] like Figs. 1 to 3 As shown, a reflective optical structure suitable for multiplexing functions includes: at least one reflective part 1; wherein, the cross section of the reflective part 1 in a vertical plane includes a parabola 12, and the parabola 12 has a focal point F11; the reflective part 1 is formed by extending the cross section along the normal of the plane, and the reflective part 1 has a focal line 13; a light source capable of emitting at least two colors of light is disposed on the focal line 13, the light colors including a first color and a second color of light; the light emission centers of the first color and the second color of light are located on the focal line of the reflective part 1, and the light rays emitted by the first color and the second color of light are reflected by the reflective part 1, and the projections of the light rays in the horizontal plane are radiated with their respective directrixes as the origin. Since the light sources 2 of different colors of light are all kept in focus and can be utilized by the reflective part 1 as much as possible, the uniformity is excellent and the efficiency is higher.

[0035] Example 2: A reflective optical structure suitable for multiplexing functions, differing from Example 1 in that the reflective part 1 includes multiple reflective units 3. Each reflective unit 3 extends from a truncated section in a vertical plane along the normal of the plane, and each reflective unit 3 corresponds to one light color. Each reflective unit 3 corresponds to two light colors, which are emitted by two single-core LEDs or one two-core LED.

[0036] In this embodiment, the reflective units 3 corresponding to different light colors are arranged at intervals, continuously, or intermittently.

[0037] In the embodiment, the plurality of reflecting units 3 are arranged in a stepped manner. The focal lengths of the plurality of reflecting units 3 are the same or different. The light emitting surfaces of the LEDs of different colors can be arranged very compactly, which means that the dark area width between the same color is shorter, and the uniformity is also improved from another angle.

[0038] Embodiment 3, a reflective optical structure suitable for functional multiplexing, different from embodiments 1 and 2, the surface of the reflecting part 1 is a smooth curved surface or attached with a diffusion pattern.

[0039] In summary: through the different light colors of the light source 2 are not defocused, and can be reflected by the reflecting part 1 as much as possible, so the uniformity is good, and the efficiency is higher. The light emitting surfaces of the LEDs of different colors can be arranged very compactly, which means that the dark area width between the same color is shorter, and the uniformity is also improved from another angle.

[0040] The various devices selected in the application are all general standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods. In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the description of the present application, it should be pointed out that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0042] Based on the above ideal embodiments according to the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A reflective optical structure suitable for functional multiplexing, characterized in that, Comprise: at least one reflecting part (1); the cross section of the reflecting part (1) in a vertical plane contains a parabola (12), the parabola (12) has a focus F (11); the reflecting part (1) is formed by the cross section extending along the normal of the plane, the reflecting part (1) has a focal line (13); the focal line (13) is provided with at least two light sources (2) capable of emitting two light colors, the light colors contain the first light color and the second light color; the light emitting center of the first light color and the second light color is located on the focal line of the reflecting part (1), and the projection of the light rays emitted by the first light color and the second light color in the horizontal plane after reflection by the reflecting part (1) is emitted with the respective directrix as the origin.

2. The reflecting optical structure suitable for functional multiplexing according to claim 1, wherein: the reflecting part (1) comprises a plurality of reflecting units (3), the reflecting units (3) are extended by the cross section in the vertical plane along the normal of the plane, and each reflecting unit (3) corresponds to a light color.

3. The reflecting optical structure suitable for functional multiplexing according to claim 2, wherein: each reflecting unit (3) corresponds to two light colors, and the two light colors are emitted by two single-core LEDs or one two-core LED.

4. The reflecting optical structure suitable for functional multiplexing according to claim 3, wherein: a plurality of reflecting units (3) are arranged in a stepped manner.

5. The reflecting optical structure suitable for functional multiplexing according to claim 4, wherein: the focal lengths of a plurality of reflecting units (3) are the same or different.

6. The reflecting optical structure suitable for functional multiplexing according to claim 5, wherein: the surface of the reflecting part (1) is a smooth curved surface or is attached with diffusion patterns.

7. The reflecting optical structure suitable for functional multiplexing according to claim 6, wherein: the reflecting units (3) corresponding to different light colors are arranged in a spaced, continuous or intermittent manner.

Images