JPH0945113A - Lighting fixture for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the metallic feeling with a small number of processes at a low cost. SOLUTION: A diffusive prism element group 14 is provided on the inner face of an outer lens 11, a protruded stripe 16 is provided on the outer face of an inner lens 12, a metallic feeling process section 15 is provided on the protruded stripe 16, and the outer lens 11 and the inner lens 12 are kept at a prescribed distance L. A metal molding is seen inside through the outer lens 11 when a lamp is not lighted by the combination of the light diffusing action of the diffusive prism element group 14 of the outer lens 11, the distance L between the outer lens 11 and the inner lens 12, and the metallic feeling process section 15 of the inner lens 12. The metallic feeling process section 15 can be applied to the inner lens 12 with a small number processes at a low cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular lamp having a double lens structure composed of an outer lens and an inner lens, such as a rear combination lamp, and particularly to a non-lighting process with a small number of steps and a low cost. The present invention relates to a vehicular lamp in which a metal molding can be seen inside through an outer lens.

[0002]

2. Description of the Related Art Today, in a vehicle lighting device such as a rear combination lamp (having a double lens structure including an outer lens and an inner lens, a single lens structure, etc.), a metal is internally passed through the lens when it is not lit. A vehicular lamp with a view of the mall has been proposed.

[0003]

However, for the treatment of the metal molding of the above-described vehicle lamp, for example, an undercoat (base coat) is applied on the surface of the base material of the lens made of synthetic resin by mask coating and dried, After drying the undercoat, aluminum vapor deposition is applied to this undercoat surface by mask vapor deposition, and a topcoat (protective coat (clear)) is applied to this aluminum vapor deposition film by mask coating and dried.
After the top coat is dried, the over-deposited portion is removed (for example, it is washed with an alkaline solution and then with water, and then with pure water, and then dried), so that the number of steps is large and the cost is low. There are problems such as high price.

It is an object of the present invention to provide a vehicular lamp in which the number of steps is small and the cost is low, and a metal molding can be seen inside through an outer lens when not lit.

[0005]

In order to achieve the above-mentioned object, the present invention is provided with a diffusing pre-element group on the inner surface of the outer lens, and the surface of the inner lens facing the inner surface of the outer lens. Is provided with a ridge, and the ridge is provided with a metal-sensing portion that looks like a metal molding through the outer lens, and the outer lens and the inner lens are kept at a predetermined distance. Is characterized by.

According to the present invention, the action of diffusing light of the prism element group of the diffusing system of the outer lens and the distance between the prism element group of the diffusing system of the outer lens and the convex metal strip processing portion of the inner lens are provided. By combining with the convex metal treatment part of the inner lens, the metal molding can be seen inside through the outer lens when not lit.

Moreover, the metal sensitized portion can be applied to the convex streak of the inner lens by an aluminum vapor deposition process which has a large number of steps and a high cost, but a process which has a small number of steps and a low cost.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicular lamp of the present invention will be described below with reference to the accompanying drawings. This example describes a rear combination lamp.

In the figure, reference numeral 1 is a vehicular lamp, which is a rear combination lamp in this example. This rear combination lamp 1 is a lamp housing 1
0, a double lens of an outer lens 11 and an inner lens 12 arranged in the front opening of the lamp housing 10, and a plurality of, for example, three-chamber lamps formed by the double lenses 11 and 12 and the lamp housing 10. Chamber 13
And light source bulbs (not shown) respectively arranged in the three lamp chambers 13.

The lamp housing 10 is made of PP, for example.
The outer lens 11 is made of synthetic resin such as PMMA (polymethylmethacrylate (methacrylic resin)), and the inner lens 12 is made of synthetic resin such as PC (polycarbonate). Will be made.

The inner surface of the outer lens 11 (the lamp chamber 13
A diffusion type pre-element group 14 is provided on the side (the surface facing the inner lens 12). The diffusion system prism element group 14 is, for example, a so-called fish-eye prism including a large number of small spherical convex portions. The size and shape of the prism element group 14 of the diffusing system can be arbitrarily set in consideration of the appearance (depth feeling) of the rear combination lamp 1.

On the outer surface of the inner lens 12 which faces the inner surface of the outer lens 11, a ridge 16 is integrally provided. The ridge 16 is provided, for example, on a boundary having different lamp functions (stop lamp function, tail lamp function, back lamp function, etc.). This ridge 16
A metal sensation processing portion 15 that is seen as a metal molding through the outer lens 11 is provided on the surface of the.

As shown in FIG. 4, the metallic sensation processing section (high brightness processing section or reflective coating) 15 is, for example, the surface of the base material of the inner lens 12 made of synthetic resin (the outer lens 1).
The surface of the ridge that is integrally provided on the outer surface of the inner lens 12 facing the inner surface of 1) is treated with a paint or ink (hereinafter, referred to as paint) using a high-brightness aluminum pigment by a coating method or a printing method. It will be. The paint using the high brightness aluminum pigment is, for example, a leafing aluminum pigment or a precipitation type aluminum pigment. Specifically, this paint is, for example, a fine powder aluminum pigment that has been coated so as not to undergo oxidative discoloration (it should be noted that there is no problem even if it is a fine powder aluminum pigment that is not coated so as to prevent oxidative discoloration). , Which is a fine powder aluminum pigment in this paint, which floats on the surface after coating and is arrayed using leafing aluminum (in this case, it looks like aluminum vapor deposition), or the fine powder in this paint It consists of a paint that uses a settling type aluminum in which the aluminum pigment settles down after painting (in this case, it looks like stainless steel).

As the paint for forming the metallic coating film 25, for example, the product name "Suncoat Y-521" manufactured by Nagashima Special Paint Co., Ltd. is used.

A group of diffusing prism elements 14 on the inner surface of the outer lens 11 and the convex stripe 1 of the inner lens 12
A predetermined distance L1, for example, 1.0 to 10 mm is maintained between the metal sensation processing unit 15 and the metal sensation processing unit 15.

Since the vehicular lamp of the present invention in this embodiment has the above-mentioned structure, the rear combination lamp 1 is passed through the outer lens 11 when not lit.
You can see a metal molding inside.

That is, the function of diffusing light of the diffusing prism element group 14 of the outer lens 11 and the metallic sensation processing section 15 of the inner surface diffusing prism element group 14 of the outer lens 11 and the ridge 16 of the inner lens 12 are described. By the combination of the distance L between the inner surface of the inner lens 12 and the metal-sensing portion 15 of the ridge 16 of the inner lens 12, the metal-sensing portion 1 of the ridge 16 of the inner lens 12 viewed through the outer lens 11 is combined.
5 appears as a metal molding.

In the rear combination lamp 1, when the light source bulb is turned on, the light from the light source bulb causes the metal sensation processing portion 15 of the ridge 16 of the inner lens 12 to be processed.
The light is completely shielded by, the light is transmitted through the other portions, and the light is emitted to the outside through the outer lens 11 in a predetermined light distribution pattern.

Then, the convex strip 1 of the inner lens 12 is processed by a process (printing method or the like) which has a small number of steps and is not an aluminum vapor deposition process which has a large number of steps and a high cost.
6 can be processed by the metal processing part 15.

In the embodiment described above, the predetermined distance L between the diffusion prism element group 14 on the inner surface of the outer lens 11 and the metal-sensing portion 15 of the ridge 16 of the inner lens 12 is 1.0. Although it is set to 10 mm, this distance is not necessarily limited to the above numerical range.

Further, although the rear combination lamp has been described in the above embodiment, the vehicle lamp of the present invention can be applied to vehicle lamps other than the above.

[0022]

As is apparent from the above, the vehicular lamp according to the present invention is a process that has a small number of steps and a low cost.
When not lit, the metal molding is visible inside through the outer lens.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a vehicular lamp of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an enlarged sectional view taken along line III-III in FIG. 2;

FIG. 4 is an exploded perspective view of a lamp housing, an outer lens and an inner lens.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Rear combination lamp, 10 ... Lamp housing, 11 ... Outer lens, 12 ... Inner lens, 13 ... Lamp room, 14 ... Diffusion system prism element group, 15 ...
Metal sensitized portion, 16 ... ridge, L ... Distance between outer lens and inner lens.

Claims (3)

[Claims] 1. A vehicular lamp having a double lens structure including an outer lens and an inner lens, wherein a diffusing system pre-element group is provided on the inner surface of the outer lens, and the inner surface of the outer lens of the inner lens is A ridge is provided on the opposing surface, and a metal-sensing portion that is seen as a metal molding through the outer lens is provided on the ridge, and a predetermined distance is provided between the outer lens and the inner lens. A vehicle lamp characterized by being kept in 2. The vehicular lamp according to claim 1, wherein the metallic sensation processing portion has a coating method using a high-brightness aluminum pigment applied to the inner lens surface by a printing method. 3. The vehicular lamp according to claim 1, wherein a distance between the outer lens and the inner lens is 1.0 to 10 mm.