PARTIALLY ALUMINIZED LENS FOR AUTOMOTIVE LAMP

Abstract

A partially aluminized lens for an automotive lamp which is set in front of the automotive lamp light source and comprised of a light-incident surface and a light-emitting surface forming the main light shape, and the reflection surface forming the auxiliary light shape. The aforesaid light-incident surface and the light-emitting surface forming the main light shape is completed by a plano-convex lens. The aforesaid reflection surface forming the auxiliary light shape is completed by a reflection frame integrated and provided with the plano-convex lens, and the aforesaid reflection frame is formed by partial aluminization.

Claims

1. A partially aluminized lens for an automotive lamp, which is set in front of the automotive lamp light source (1), wherein the aforesaid partially aluminized lens is comprised of a light-incident surface (2) and a light-emitting surface (3) forming a main light shape, and a reflection surface (4) forming an auxiliary light shape; the aforesaid light-incident surface and the light-emitting surface forming the main light shape is completed by a plano-convex lens (5); the aforesaid reflection surface forming the auxiliary light shape is completed by a reflection frame (6) integrated and provided with plano-convex lens, and the aforesaid reflection frame being formed by partial aluminiation; a succession part (7) is formed at the connection of the plano-convex lens and the reflection frame; through the light-incident surface of the plano-convex lens, the reflection surface of the reflection frame and the succession part, the aforesaid light wave can form the main light shape with the horizontal shading line and the range of illumination of 35 degrees˜45 degrees of the inner side, and 65 degrees˜75 degrees of the outer side of the automobile, and can form the auxiliary light shape with the shading line with inflection points required for the low beam light shape, and with the range of illumination of both 15 degrees˜25 degrees of the inner side and outer side of the automobile.

2. The aforesaid partially aluminized lens for an automotive lamp of claim 1, wherein the aforesaid light-incident surface forming the main light shape is plane or curved surface.

3. The aforesaid partially aluminized lens for an automotive lamp of claim 1, wherein the aforesaid reflection frame is set of bowl, and the aforesaid partially aluminized lens for an automotive lamp is fixed at the radiator of the automotive lamp light source with the succession part.

4. The aforesaid partially aluminized lens for an automotive lamp of claim 1, wherein the aforesaid aluminization has a thickness of 4.5˜5.5 μm.

5. The aforesaid partially aluminized lens for an automotive lamp of claim 4, wherein the aforesaid reflection frame is partial aluminization at the inner side.

6. The aforesaid partially aluminized lens for an automotive lamp of claim 4, wherein the aforesaid reflection frame is partial aluminization at the outer side.

7. The aforesaid partially aluminized lens for an automotive lamp of claim 1, wherein the aforesaid automotive lamp light source is comprised of the array of 1˜5 LED chips.

Description

DESCRIPTION OF THE FIGURES

[0030] FIG. 1 is a structural diagram of the invention;

[0031] FIG. 2 is a diagram of the first kind of light shape of the invention;

[0032] FIG. 3 is a diagram of the second kind of light shape of the invention;

[0033] FIG. 4 is a diagram of the third kind of light shape of the invention;

[0034] FIG. 5 is a diagram of the fourth kind of light shape of the invention;

[0035] FIG. 6 is a structural diagram of the available technology.

[0036] Wherein, 1 indicates a automotive lamp light source; 2 indicates a light-incident surface; 3 indicates a light-emitting surface; 4 indicates a reflection surface; 5 indicates a plano-convex lens; 6 indicates a reflection frame; and 7 indicates a succession part.

EMBODIMENTS

[0037] The partially aluminized lens for an automotive lamp of the invention is further described with the attached figures of the manual and the specific implementation method as follows:

[0038] As shown in FIG. 1, the partially aluminized lens for an automotive lamp is set in front of the automotive lamp light source (1). The aforesaid partially aluminized lens is comprised of the light-incident surface (2) and the light-emitting surface (3) forming the main light shape and the reflection surface (4) forming the auxiliary light shape;

[0039] The aforesaid light-incident surface and the light-emitting surface forming the main light shape is completed by a plano-convex lens (5);

[0040] The aforesaid reflection surface forming the auxiliary light shape is completed by a reflection frame (6) integrated and provided with the plano-convex lens.

[0041] The succession part (7) is formed at the connection of the plano-convex lens and the reflection frame;

[0042] Through the light-incident surface and the light-emitting surface of the plano-convex lens, the aforesaid light wave can form the main light shape with the horizontal shading line and the range of illumination of about 40 degrees of the inner side, and about 70 degrees of the outer side of the automobile. Through the light-incident surface of the plano-convex lens, the reflection surface of the reflection frame and the succession part, the aforesaid light wave can form the auxiliary light shape with the shading line with inflection points required for the low beam light shape, and with the range of illumination of both about 20 degrees of the inner side and outer side of the automobile. The low beam light shape is finally formed with the superposition of both light shapes.

[0043] The aforesaid automotive lamp light source is comprised of one or several square LED lighting chips in arrangement, usually the number of the LED lighting chip is 1˜5. The aforesaid LED lighting chips can be regarded as the area light source. By placing the LED lighting chip at the focus of the lens, the light emitted from the LED lighting chip forms the illumination light shape with the horizontal shading line through the two refractions of the light-incident surface and the light-emitting surface;

[0044] The aforesaid light-incident surface forming the main light shape is plane or curved surface.

[0045] The aforesaid reflection frame is set of bowl, and the aforesaid partially aluminized lens for an automotive lamp is fixed at the radiator of the automotive lamp light source with the succession part.

[0046] The aluminization of the inner side and outer side of the aforesaid reflection frame can be achieved by partial vacuum aluminization process to avoid aluminization of the light-incident surface and the reflection surface of the lens, which can influence the formation of the main light shape. The aforesaid process of vacuum aluminization can form the reflecting aluminization layer with the thickness of about 5 μm on the surface of the lens. The aforesaid reflection frame is designed of specific shape according to the direction of the incident light, which can reflect the reflecting light to the needed illumination area, such as the position of the inflection point of the low beam shading line, to form the F2 light shape as shown in FIG. 4, and the F2 light shape in FIG. 2 to increase the illumination are, or the F2 light shape in FIG. 3 to increase the illumination strength of local areas.

[0047] As the supplementary function of the aforesaid partially aluminized lens for an automotive lamp, the partially aluminized lens can also be applied for the function of high-beam lighting. With specific design of light-emitting surface, the light emitted from the LED light source can form the main light shape F1 of the high-beam lighting as shown in FIG. 5 through the plano-convex lens, and form the supplementary light shape F2 with the reflection of the reflection surface of the reflection frame, ensuring the central brightness of the high beam and increasing the illumination range of the high beam at the same time.

[0048] The aforesaid partially aluminized lens for an automotive lamp can satisfy the requirement of the formation of the shading line at one time based on saving the cost and reducing the occupation of space with the settings of the reflection frame, which has specific screen (shield) effect at the same time. On this basis, the former structure that is alternatively set for light blocking can be left out by directly fixing the plano-convex lens to the radiator of the automotive lamp light source; The utilization of the automotive lamp light source is increased by optimizing again the distance between the convex lens and the automotive lamp light source; The requirement of different shading lines can be satisfied by setting different reflection frames (as shown in FIGS. 2, 3, and 4, and different light shapes achieved by different structures of the reflection frames, wherein F1 is the main light shape, F2 is the auxiliary light shape, and F3 is the shading line); The aforesaid reflection frame applies the partial vacuum aluminizing to form the reflecting surface, which can form the reflecting aluminum-plated layer with the thickness of about 5 μm at the inner side or outer side of the reflection frame, preferably 4.5 μm˜5.5 μm. The reflection surface can be set of different shapes according to the direction of the incident light to form the required supplementary light shape, such as the F2 light shape in FIG. 2 that is applied to increase the range of illumination, the F2 light shape in FIG. 3 for local improvement of the illumination strength, the F2 light shape in FIG. 4 for the formation of the shading line with inflection points necessary for the low beam, and the improvement of the illumination range of the F1 high-beam light shape as shown in FIG. 5.

[0049] The partially aluminized lens for an automotive lamp is aimed at cost saving to perfect the structure, so the improved lens can satisfy the requirement of forming shading lines in a single process, thus eliminating the need for a complex structure formed by combining other light-emitting units via a single process. Furthermore, the invention has increased the utilization of the illumination within the safe allowance by improving the position of the lens and the light source. Moreover, the invention has also left out the former screen (shield) structure between the automotive lamp light source and the lens. The former complicated truck-mounted components are replaced with structural optimization.