CN115539900B

CN115539900B - Polarizing structure and automobile lamp

Info

Publication number: CN115539900B
Application number: CN202211495956.4A
Authority: CN
Inventors: 徐亮; 蔡慧娟
Original assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Current assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-03-07
Anticipated expiration: 2042-11-28
Also published as: CN115539900A

Abstract

The invention relates to the technical field of vehicle lamps, in particular to a polarized light structure and an automobile lamp. The polarizing structure comprises a first polarizing part and a second polarizing part, wherein the second polarizing part is connected and arranged below the first polarizing part; the top end of the first light polarizing part is provided with a spherical concave surface, the spherical concave surface forms a light inlet surface, the side surface of the first light polarizing part is an ellipsoid side surface, and the ellipsoid side surface forms an ellipsoid reflecting surface; the side surface of the second light polarizing part is a parabolic side surface, the parabolic side surface forms a parabolic reflecting surface, and the tail surface of the second light polarizing part is a plane which forms a light emitting surface. The invention has reasonable design, can well collect light by utilizing the optical characteristics of the ellipsoidal reflecting surface and the parabolic reflecting surface through the combination of the ellipsoidal reflecting surface and the parabolic reflecting surface, can efficiently deflect the light to a target angle and position, and finally meets the requirements of laws and regulations and customers.

Description

Polarizing structure and automobile lamp

Technical Field

The invention relates to the technical field of vehicle lamps, in particular to a polarized light structure and an automobile lamp.

Background

With the rapid development of the automobile industry, the requirements of various host factories on the automobile lamps are higher and higher, and the design difficulty of the automobile lamps is higher and higher, so that the automobile lamp enterprises are required to find a new solution. More and more lamps can face the condition that the light emitting direction of a light source is inconsistent with the light emitting direction of a lamp, some conditions can be realized by one-time total reflection, more and more conditions are that the light is difficult to deflect to the required direction due to too large angle, the light effect is not high, the cost is increased, and one part can not realize the requirement. Therefore, it is necessary to provide a structure capable of simultaneously collecting light, polarizing light, and diffusing light.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the defects in the prior art are overcome, and a polarizing structure and an automobile lamp are provided.

The technical scheme adopted by the invention for solving the technical problem is as follows: a polarized light structure comprises a first polarized light part and a second polarized light part, wherein the second polarized light part is connected and arranged below the first polarized light part; the top end of the first polarizing part is provided with a spherical concave surface, the spherical concave surface forms a light inlet surface, the side surface of the first polarizing part is an ellipsoid side surface, and an ellipsoid reflecting surface is formed on the ellipsoid side surface; the side surface of the second light polarizing part is a parabolic side surface, the parabolic side surface forms a parabolic reflecting surface, and the tail surface of the second light polarizing part is a plane which forms a light emitting surface.

Furthermore, the first polarizing part is arranged vertically, and the second polarizing part is arranged obliquely relative to the first polarizing part.

Furthermore, the spherical center of the light inlet surface is superposed with the upper focal point of the ellipsoidal reflecting surface.

Further, the lower focus of the ellipsoid reflecting surface coincides with the focus of the parabolic reflecting surface.

Furthermore, the light inlet surface is provided with diffusion patterns or dermatoglyphs.

Further, the light emitting surface is a smooth surface or a patterned surface.

Further, the first light-polarizing part and the second light-polarizing part are of an integrated structure.

An automobile lamp comprises a shell and an outer lampshade, wherein a light source module and a polarization structure are arranged in an inner cavity of the shell, the light source module is positioned above the polarization structure, and the polarization structure adopts the polarization structure;

the outer lampshade is positioned on the outer side of the polarizing structure;

the light source module comprises a light source, and the center of the light source, the spherical center of the light inlet surface and the upper focal point of the ellipsoidal reflecting surface are superposed.

Further, the outer lampshade and the polarization structure are of an integrated structure.

Furthermore, the outer lampshade and the polarization structure are of split structures.

The invention has the beneficial effects that: the invention has simple structure, reasonable design and simple and convenient operation, and has the following advantages:

(1) The light can be well collected by the combination of the optical characteristics of the ellipsoidal reflecting surface and the parabolic reflecting surface, and can be efficiently deflected to a target angle and position, so that the requirements of laws and regulations and customers are finally met;

(2) The lighting effect is high, and the cost of the light source is saved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of a polarizing structure according to the present invention;

FIG. 2 is a cross-sectional view of a polarizing structure in the present invention;

FIG. 3 is a schematic diagram of the optical path of the polarizing structure of the present invention;

FIG. 4 is a schematic structural view of an automotive lamp according to embodiment 1;

FIG. 5 isbase:Sub>A sectional view taken along line A-A of FIG. 4;

fig. 6 is a sectional view of the automotive lamp in embodiment 2.

In the figure: 1. the light source module comprises a light inlet surface, 2 parts of an ellipsoid reflecting surface, 3 parts of a parabolic reflecting surface, 4 parts of a light outlet surface, 5 parts of a light source module, 6 parts of a shell, 7 parts of a light source, 8 parts of an outer lampshade, 9 parts of a first light deflection part, 10 parts of a second light deflection part, 11 parts of a sphere center, 21 parts of an upper focus, 22 parts of a lower focus and 31 parts of a focus.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams each illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention.

Example 1

A polarizing structure as shown in fig. 1 to 3 includes a first polarizing part 9 and a second polarizing part 10, wherein the second polarizing part 10 is connected and installed below the first polarizing part 9; the top end of the first polarized light part 9 is provided with a spherical concave surface which forms a light inlet surface 1, the side surface of the first polarized light part 9 is an ellipsoid side surface, and the ellipsoid side surface forms an ellipsoid reflecting surface 2; the side surface of the second light polarized part 10 is a parabolic side surface, the parabolic side surface forms a parabolic reflecting surface 3, the tail surface of the second light polarized part 10 is a plane, and the plane forms a light emitting surface 4. The polarizing structure is a transparent member.

The first polarizing section 9 is disposed upright, and the second polarizing section 10 is disposed obliquely to the first polarizing section.

The spherical center 11 of the light inlet surface 1 coincides with the upper focal point 21 of the ellipsoidal reflecting surface 2.

The lower focal point 22 of the ellipsoidal reflective surface 2 coincides with the focal point 31 of the parabolic reflective surface 3.

The first polarizer 9 and the second polarizer 10 are integrated.

The light inlet surface 1 is a spherical surface, and the center of the light source 7 is superposed with the spherical center 11 of the light inlet surface 1, so that the light emitted by the light source 7 is not refracted when entering the deflection structure, and the original direction can be kept to continue to advance.

The spherical center 11 of the light inlet surface 1 coincides with the upper focal point 21 of the ellipsoidal reflecting surface 2, and the center of the light source 7 is also at the upper focal point 21 of the ellipsoidal reflecting surface 2. According to the optical characteristic that light emitted from one focus of the ellipsoid is converged at the other focus after being reflected by the inner surface of the ellipsoid, the light emitted by the light source 7 is converged at the lower focal point 22 of the ellipsoid reflecting surface 2, namely the lower focal point of the ellipsoid can be approximately regarded as the center of the light source.

The lower focal point 22 of the ellipsoidal reflecting surface 2 coincides with the focal point 31 of the parabolic reflecting surface 3, and the focal point 31 of the parabolic reflecting surface 3 can be regarded as the light source center. The line connecting the focus of the paraboloid and the center of the illumination area is taken as the normal direction of the paraboloid, so that the light can reach the required position. By taking the focus of the paraboloid as a starting point and taking a line which takes the main light emitting direction required by the lamp as a direction as the normal direction of the paraboloid, the light can be emitted to the required direction.

As shown in fig. 4 and 5, the automobile lamp includes a housing 6 and an outer lampshade 8, a light source module 5 and a polarization structure are arranged in an inner cavity of the housing 6, the light source module 5 is located above the polarization structure, and the polarization structure adopts the above-mentioned polarization structure; the outer lampshade 8 is positioned on the outer side of the polarized light structure; the light source module 5 comprises a light source 7, and the light source 7 is an LED light source.

After the shell 6, the polarization structure and the light source module 5 are assembled, the center of the light source 7, the spherical center 11 of the light inlet surface 1 and the upper focus 21 of the ellipsoid reflecting surface 2 are superposed.

The outer lampshade 8 and the polarizing structure are of an integrated structure, so the light-emitting surface 4 is the outer surface of the outer lampshade 8, the outer surface of the outer lampshade 8 is a smooth surface or a pattern surface at the moment, and the patterns of the pattern surface are diffusion patterns or leather patterns. If the outer surface of the outer lampshade 8 is provided with diffusion patterns or dermatoglyphs, light can be more uniformly irradiated on the irradiation surface or in the irradiation direction, and the uniformity of the lamp is improved.

In this embodiment, after the light entering surface 1 receives the light emitted from the LED light source, the light continues to be transmitted to the inner surface of the ellipsoidal reflecting surface 2 in the original direction, the light is reflected by the inner surface of the ellipsoidal reflecting surface 2 and converged at the lower focal point 22 of the ellipsoidal reflecting surface 2, and finally the light is reflected by the parabolic reflecting surface 3 to become collimated light.

Example 2

The difference from example 1 is that: the light inlet surface 1 is provided with diffusion patterns or dermatoglyph which can improve the uniformity of light irradiation.

Example 3

As shown in fig. 6, the difference from embodiment 1 is that: the outer lampshade 8 and the polarizing structure are of split structures; the light-emitting surface 4 of the polarized light structure is a smooth surface or a patterned surface, and the patterns of the patterned surface are diffusion patterns or dermatoglyphs. The inner surface of the outer lampshade 8 is a smooth surface or a pattern surface, and the pattern of the pattern surface is a diffusion pattern or a leather pattern.

While particular embodiments of the present invention have been described in the foregoing specification, various modifications and alterations to the previously described embodiments will become apparent to those skilled in the art from this description without departing from the spirit and scope of the invention.

Claims

1. A polarizing structure characterized by: the backlight module comprises a first polarized light part (9) and a second polarized light part (10), wherein the second polarized light part (10) is connected and installed below the first polarized light part; the top end of the first polarized light part (9) is provided with a spherical concave surface, the spherical concave surface forms a light inlet surface (1), the side surface of the first polarized light part (9) is an ellipsoid side surface, and the ellipsoid side surface forms an ellipsoid reflecting surface (2); the side surface of the second polarized light part (10) is a parabolic side surface, the parabolic side surface forms a parabolic reflecting surface (3), the tail surface of the second polarized light part (10) is a plane, and the plane forms a light emitting surface (4);

the spherical center (11) of the light inlet surface (1) is superposed with the upper focal point (21) of the ellipsoidal reflecting surface (2);

the lower focal point (22) of the ellipsoid reflecting surface (2) coincides with the focal point (31) of the parabolic reflecting surface (3).

2. A light deflecting structure according to claim 1, wherein: the first light deflecting part (9) is arranged vertically, and the second light deflecting part (10) is arranged obliquely relative to the first light deflecting part (9).

3. A light deflecting structure according to claim 1, wherein: diffusion patterns or dermatoglyphs are arranged on the light inlet surface (1).

4. A light deflecting structure according to claim 1, wherein: the light emitting surface (4) is a smooth surface or a patterned surface.

5. A light deflecting structure according to claim 1, wherein: the first light-polarizing part (9) and the second light-polarizing part (10) are of an integral structure.

6. An automotive lamp, characterized in that: the LED lamp comprises a shell (6) and an outer lampshade (8), wherein a light source module (5) and a polarization structure are arranged in an inner cavity of the shell (6), the light source module (5) is positioned above the polarization structure, and the polarization structure adopts the polarization structure as claimed in any one of claims 1 to 5;

the outer lampshade (8) is positioned on the outer side of the polarizing structure;

the light source module (5) comprises a light source (7), and the center of the light source (7), the spherical center (11) of the light inlet surface (1) and the upper focal point (21) of the ellipsoidal reflecting surface (2) are superposed.

7. An automotive lamp as claimed in claim 6, characterized in that: the outer lampshade (8) and the polarizing structure are of an integrated structure.

8. The automotive lamp of claim 6, wherein: the outer lampshade (8) and the polarizing structure are of split structures.