JP2000123608A - Lamp for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lamp for a vehicle capable of making the inside of a housing look dark when the lamp is turned off without smoke treatment to a lens. SOLUTION: A housing 10 is made of synthesized resin containing material mixed with black or gray pigment, a lens 1 is mounted in front of the housing 10, and a bulb 2 is housed in the housing 10. A parabolic reflecting surface 12, which is arranged behind the bulb, for reflecting light emitted from the bulb 2 forwardly is treated to form a reflecting surface. A part of an inner surface of the housing 10 before the reflecting surface 12 is not treated to form a reflecting surface, but a black or gray base of the housing 10 is exposed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular lamp in which a housing is made of a synthetic resin molded from a raw material mixed with a black or gray pigment.

[0002]

2. Description of the Related Art In order to suppress glare in a lamp due to a reflection surface in a housing and improve designability,
Smoke is applied to lamp lenses.

[0003]

This makes it possible to make the lens appear dark when the lamp is not lit, but on the other hand, the light distribution performance of the lamp lens is reduced and the cost is increased.

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to provide a vehicle lamp capable of making the inside of a housing look dark when not lit, without performing a smoke process on a lens.

[0005]

According to the present invention, in order to achieve this object, a synthetic resin housing may be colored black or gray with a pigment during molding due to light leakage or apparent reasons. According to claim 1, the vehicle according to claim 1, wherein the housing is made of a synthetic resin molded from a raw material mixed with black or gray pigment, a lens is attached to a front portion thereof, and a valve is housed inside. For lamps for
A reflective surface treatment is applied to a parabolic reflective surface behind which light emitted from the bulb should be reflected forward in the housing, and at least a portion of the inner peripheral surface portion of the housing closer to the front than the reflective surface. The present invention is characterized in that a black or gray base material of the housing is exposed without performing a reflective surface treatment.

[0006] The inner surface of the housing not subjected to the reflection surface treatment remains black or gray, and this dark area is visible through the lens, and therefore, the inside of the housing is darkened to suppress glare caused by the reflection surface when the housing is not lit. .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A turn signal lamp according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.
The turn signal lamp 9 is configured by housing a bulb 2 in a housing 10 in which an amber lens 1 is fitted on the front. The housing 10 is formed by mixing a pigment such as carbon black into a resin material, for example.
It is injection molded by coloring translucent polypropylene black.

A rear surface portion 11 behind the bulb 2 on the inner surface of the housing 10 is bent in a parabolic shape in a lateral direction, and a reflection surface treatment is performed by aluminum vapor deposition or reflection coating to form a reflection surface 12. . On the other hand, the inner peripheral surface portion 13 having a rectangular shape closer to the front than the back surface portion 11 is not subjected to the reflection surface treatment.

As a result, when the turn signal lamp 9 is not lit, even if the lens 1 is not smoked, the black color of the base in the housing 10 can be seen, and the glare caused by the darkening of the reflection surface 12 is suppressed. You.

In the above-described embodiment, the entire inner peripheral surface portion is left as it is in the raw material color. However, for example, only the lower portion is subjected to a reflective surface treatment in the same manner as the back surface portion 11 so that
An intermediate darkness can be expressed. The design can be changed by adjusting the degree of darkness at the time of non-lighting by selecting the mixing ratio or type of the pigment.

When the shape of the opening of the housing is circular,
For example, a reflective surface treatment is performed on a parabolic rear surface portion behind the inner peripheral surface portion in a region ahead of the valve position. Black or gray pigments may be mixed into milky ABS as a synthetic resin for the housing. The present invention can be applied not only to a turn signal lamp but also to a lamp having a red or clear lens.

[0012]

As described above, according to the present invention, the light distribution characteristics are not impaired because the lens does not need to be subjected to a smoke treatment by utilizing the base of the housing as a molded product, and the interior is not illuminated when not lit. It is possible to make it look dark. The degree of freedom in design can be increased by adjusting the coloring or adjusting the area to be left as it is.

[Brief description of the drawings]

FIG. 1 is a sectional view of a turn signal lamp according to an embodiment of the present invention.

FIG. 2 is a perspective view of the turn signal lamp.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lens 2 Bulb 10 Housing 11 Back part 12 Reflection surface

Claims (1)

[Claims] 1. A vehicular lamp in which a housing is made of a synthetic resin molded from a raw material mixed with a pigment for black or gray, a lens is attached to a front part thereof, and a bulb is housed inside. A reflection surface treatment is applied to a parabolic reflection surface behind which the light emission of the bulb should be reflected forward, and at least a part of the housing inner peripheral surface portion closer to the front than the reflection surface is applied. A black or gray base material of the housing is exposed without applying a reflection surface treatment to the lamp.