TW201447405A - Heterogeneous light guide strip optical structure - Google Patents

Abstract

This invention provides a heterogeneous light guide strip optical structure, comprising: a light guide body with one side arranged with at least a light receiving part, a total reflection surface and a light exiting surface. The total reflection surface is configured as an inclined plane opposite to the light receiving part, and the light exiting surface is corresponding to the total reflection surface. The light exiting surface comprises a plurality of concaved surfaces. Thus, this invention uses the light receiving part to completely receive light and uses the total reflection surface to increase effective light area; in addition, the concaved surfaces can enhance the light uniformity, such that the light shape of the present invention is saturated and uniform and the light exiting surface is not limited to the shape.

Description

Shaped light guide strip optical structure

The invention provides an optical structure of a profiled light guide strip, in particular to an optical structure which effectively enhances the homogenization property.

According to the light guide bar, the vehicle lamp is used to enhance the vehicle's recognition and aesthetics. Many car models integrate the light guide bar into the car light, which makes the car more aesthetic and technological sense. Therefore, the relevant operators have invested in the light guide bar. R&D and design.

The optical path of the conventional light guiding strip is as shown in FIG. 1 , which comprises a light guiding body 10 which is made of a light guiding medium, and the light guiding body 10 has a light emitting surface 20 , and the light emitting surface 20 The first inclined surface 201 and the second inclined surface 202 are formed in a zigzag structure, and the light guiding body 10 has a reflective layer 30 opposite to the light emitting surface 20; a light source 40 is disposed on the side edge of the light guiding body 10; The light source L10 of the light source 40 is incident through the side edge of the light guide body 10. Since the air and the light guide body 10 have different refractive indexes, the light beam L10 will emit light in the sawtooth structure. After the surface 20 and the air are refracted multiple times, the light is emitted toward the axial direction of the light guide body 10; and the light beam L20 of the light source 40 is incident from the side edge of the light guide body 10, and passes through the light exit surface 20 of the sawtooth structure. The total reflection is generated and directed to the reflective layer 30, and then reflected by the reflective layer 30 to be emitted from the light exit surface 20; and the light beam L30 is incident on the reflective layer 30 from the side edge of the light guide body 10, and directly passes through the reflective layer 30. The light is emitted from the light exit surface 20 by reflection.

However, since the light-emitting surface 20 has a zigzag structure, and the light beams L10, L20, and L30 emitted by the first inclined surface 201 and the second inclined surface 202 are partially non-uniformly superimposed, the light is fenced. Shape, which will affect the aesthetics of the overall light shape; in addition, the light-emitting surface 20 in a zigzag structure will have an outer shape that can only be curved or straight, so that it cannot cooperate with the design of the lamp, resulting in Applicability is greatly limited.

In view of this, our inventors have devote themselves to further research on the light guide strips, and have initiated research and development and improvement, with a better design to solve the above problems, and have been experimentally and modified to have the invention.

The reason is that the purpose of the present invention is to solve the conventional light guiding strip. Since the light emitting surface is in a zigzag structure, the light of the light is not uniformized, and the light shape of the fence is formed, which affects the appearance and the light emitting surface. The shape of the outer shape can only be curved or straight, and it cannot match the design of the luminaire, so its applicability is limited.

In order to achieve the above object, the inventors provide an optical structure for a shaped light guide bar, comprising: a light guiding body having at least one light receiving portion, one total reflecting surface and one light emitting surface on one side, the total reflection The surface corresponding to the light-receiving portion has a slope, and the light-emitting surface corresponds to the total reflection surface, and the light-emitting surface comprises a plurality of concave curved surfaces.

According to the above-mentioned shaped light guide bar optical structure, wherein the light exiting surface is geometric.

According to the above-mentioned special-shaped light guiding strip optical structure, the light-emitting surface is a profiled surface.

According to the above-mentioned special-shaped light guiding strip optical structure, the two adjacent concave curved surfaces respectively form a sharp corner.

According to the above-mentioned special-shaped light guiding strip optical structure, the concave curved surface is curved in the longitudinal direction and the lateral direction, and the tip end of the sharp corner is also curved.

According to the optical structure of the shaped light guide bar, the light guide bar further includes at least one light source respectively disposed on the light receiving portion, and the light of the light source is received by the light receiving portion, and is completely reflected by the total reflection surface. After the reflection, the light is emitted from the light surface.

According to the above-mentioned shaped light guide bar optical structure, the light source is a Light-Emitting Diode (LED).

With the above arrangement, the present invention completely illuminates the light source through the light-receiving portion, and the total reflection surface is inclined to the light-receiving portion, so that the total reflection surface can completely convert the light received by the light-receiving portion completely. For effective light, to improve the saturation of the overall light shape, and the light-emitting surface corresponds to the total reflection surface, so that the light can be completely totally reflected to the light-emitting surface, since the light-emitting surface is composed of a plurality of concave curved surfaces, two phases Adjacent to the concave curved surface, a sharp corner is formed, and the top end of the sharp corner is curved, so that the light shape of the present invention can make the light uniformly light regardless of the horizontal or vertical direction, so that the light shape of the present invention is saturated. Uniform, in order to maintain the overall appearance of the light shape, and the light-emitting surface can be geometric or shaped surface, so that the light-emitting surface is not limited by the shape, so it can be applied to the design of various lamps to greatly enhance the wide applicability of the present invention. By.

The invention will be described in detail below with reference to the drawings.

Referring to FIG. 2 to FIG. 4, the present invention is a special-shaped light guiding strip optical structure, which comprises:

A light guiding body 1 is provided with at least one light receiving portion 11 , a total reflection surface 12 and a light emitting surface 13 on one side thereof. The total reflection surface 12 is opposite to the light receiving portion 11 and the light emitting surface 13 Corresponding to the total reflection surface 12, the light-emitting surface 13 is composed of a plurality of concave curved surfaces 131. The light-emitting surface 13 is a geometric shape or a profiled surface, and two adjacent concave curved surfaces 131 are respectively formed. a sharp corner 132, the concave curved surface 131 is curved in both the longitudinal direction and the lateral direction, and the tip end of the sharp corner 132 is also curved;

A light source 2 is disposed in each of the light-receiving portions 11, and the light L of the light source 2 is received by the light-receiving portion 11, and is totally reflected by the total reflection surface 12, and then emitted by the light-emitting surface 13 The light source 2 is a Light-Emitting Diode (LED), thereby improving the overall brightness of the present invention.

For the operation state of the present invention, as shown in FIG. 2 to FIG. 4, in the present invention, the light source 2 is respectively disposed in the light-receiving portion 11, so that the light L of the light source 2 is completely received by the light-receiving portion 11, Increasing the saturation of the light shape of the present invention, and after the light L is received, the light is correspondingly projected onto the total reflection surface 12, and the total reflection surface 12 is inclined to the light-receiving portion 11, so that the total total reflection is received. The light ray L received by the portion 11 is used to increase the total light ray L to the effective light region of the light exit surface 13 to further enhance the saturation of the light shape; and the light exit surface 13 includes a plurality of The concave curved surface 131 is curved, and the concave curved surface 131 is curved in the longitudinal direction or the lateral direction, so that the top end of the sharp corner 132 formed between the two adjacent concave curved surfaces 131 is curved, as shown in FIG. The light L totally reflected by the total reflection surface 12 can be uniformly emitted through the concave curved surface 131 without being folded into a fence-like light shape, so that the present invention exhibits a uniform saturated light shape. Through the arrangement of the concave curved surface 131, the light-emitting surface 13 is not restricted by the shape, and is different from the conventional guide. It can only exhibit a linear or arc-shaped strip, the invention may take a variety of geometric shapes or contoured surface, so that the present invention is applicable to all kinds of lamps, so does the present invention are to achieve the effect of broad applicability.

It is obvious from the above description and setting that the present invention has the following several advantages and effects, which are detailed as follows:

1. The light-receiving portion 11 of the present invention can surely receive the light L of the light source 2, and the total reflection surface 12 is inclined to the light-receiving portion 11, so that the total total reflection is received by the light-receiving portion 11. The light L, so that the light L generated by the light source 2, can be totally totally reflected to the light-emitting surface 13, thereby improving the saturation of the overall light shape of the present invention.

2. The light-emitting surface 13 of the present invention comprises a plurality of concave curved surfaces 131 arranged, and the concave curved surface 131 is curved in either the longitudinal direction or the lateral direction, so that the sharp corners 132 formed between the adjacent concave curved surfaces 131 are formed. The top end is curved, so that the present invention uniformly emits light through the concave curved surface 131, and exhibits a uniform saturated light shape, thereby improving the aesthetic appearance of the overall light shape.

3. The present invention allows the light-emitting surface 13 to be unrestricted by the shape of the concave curved surface 131. Different from the conventional light-guiding strip, it can only be straight or curved, and the present invention can be various geometric shapes or shaped surfaces. It can be applied to all kinds of lamps to achieve the wide applicability.

In summary, the technical means disclosed by the present invention can effectively solve the problems of the prior knowledge, achieve the intended purpose and efficacy, and are not found in the publication before publication, have not been publicly used, and have long-term progress, The inventions referred to in the Patent Law are correct, and the application is filed according to law, and the company is invited to give a detailed examination and grant a patent for invention.

The above is only the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, that is, the equivalent changes and modifications made by the scope of the invention and the contents of the invention are all It should remain within the scope of this invention.

10. . . Light guide

20. . . Glossy surface

201. . . First slope

202. . . Second slope

30. . . Reflective layer

40. . . light source

L10, L20, L30. . . Light

1. . . Light guide body

11. . . Light collection department

12. . . Total reflection surface

13. . . Glossy surface

131. . . Concave surface

132. . . Sharp corner

2. . . light source

L. . . Light

[Fig. 1] is a schematic diagram of an optical path of a conventional light guiding strip. Fig. 2 is a schematic perspective view of the present invention. [Fig. 3] is a schematic view of the optical path of the present invention. Fig. 4 is a side elevational view of the present invention.

1. . . Light guide body

11. . . Light collection department

12. . . Total reflection surface

13. . . Glossy surface

131. . . Concave surface

132. . . Sharp corner

Claims (7)

The optical structure of the shaped light guide bar comprises: a light guiding body, wherein one side of the light guiding body is provided with at least one light receiving portion, a total reflecting surface and a light emitting surface, wherein the total reflecting surface is inclined to the light receiving portion, And the light-emitting surface corresponds to the total reflection surface, and the light-emitting surface comprises a plurality of concave curved surfaces. The shaped optical strip optical structure according to claim 1, wherein the illuminating surface is geometric. The optical structure of the shaped light guide strip according to claim 1, wherein the light-emitting surface is a profiled surface. The shaped optical strip optical structure according to claim 1, wherein two adjacent concave curved surfaces respectively form a sharp corner. The shaped optical strip optical structure according to claim 4, wherein the concave curved surface is curved in the longitudinal direction and the lateral direction, and the tip end of the sharp corner is also curved. The optical guide strip optical structure according to any one of claims 1 to 5, further comprising at least one light source respectively disposed in the light receiving portion, wherein the light source of the light source is received by the light source The light is received by the light, and after the total reflection is totally reflected, the light is emitted from the light exit surface. The optical waveguide of the shaped light guide strip of claim 6, wherein the light source is a Light-Emitting Diode (LED).