JPS5916204A - Illumination lamp for vehicle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle illumination lamp that is suitable for use as a bicycle headlamp, and in particular, although there is only one light source bulb, separate illumination positions can be illuminated with uncolored illumination light. This invention relates to a lamp that can be illuminated with both a conventional headlamp and a colored illumination light, thereby achieving two illumination functions such as a conventional headlamp and a light bulb with one illumination lamp.

In other words, as lighting lights for vehicles such as bicycles, two types of lighting lights have traditionally been required: one for illuminating distant areas, and one for near areas, and as the number of parts used has increased, it has become necessary to This requires a means for attaching to a vehicle or a connecting fitting means for interconnecting and integrating these illumination lights, which has the drawback of complicating assembly work and installation work to a vehicle.

In order to eliminate these drawbacks, the vehicle lighting lamp of the present invention achieves two functions, such as a headlamp function and a fog light function, with a single lighting device by devising a reflector. More specifically, it is a two-optical axis reflector having a first parabolic reflecting surface and a second parabolic reflecting surface arranged so that their focal points coincide with each other and their optical axes intersect at the focal position. It has an object reflecting mirror and a light bulb having a light emitting head disposed at the focal position of the reflecting mirror, and either the first parabolic reflecting surface or the second parabolic reflecting surface is formed as a colored surface. Accordingly, the light bulb is characterized in that the light from the bulb is separated into colored light and non-colored light for illumination. Since the present invention is configured in this way, even if the light directed from the light bulb toward the three-optical axis parabolic reflector is reflected by the first parabolic reflector because the light bulb is at the focal position, it will not be reflected by the second reflector. Even if they are reflected by an object reflecting surface, they become parallel reflected rays, and therefore each beam hits the ground or other object to be illuminated separately, as if they were reflected by different light bulbs, and the first parabolic reflecting surface Since one of the and second parabolic reflecting surfaces is formed as a colored surface, for example, a yellow surface, the light reflected by the colored surface becomes colored light, and therefore the two reflected light rays are colored like yellow light. It lights up separately as colored light and non-colored light, so it is possible to obtain two lighting functions such as conventional light and fog lights with one lighting lamp, and furthermore, the lighting function Since this can be accomplished only by processing the parabolic reflector, the number of parts used can be reduced and assembly work can be performed easily.

Embodiments of the vehicle lighting lamp of the present invention will be described below with reference to the drawings.

(1) is a bicycle headlamp, in this headlamp (1), (2) is a rear case of the front opening, (3) is a translucent front cover that closes this front opening; 3) Noshishi side (4)
An annular rib (5) is provided on the inner surface of the periphery in a circumferential manner.

(6) has an insertion hole in the center (with force) and a peripheral folded part (8
) is attached to the translucent front cover (3) by fitting it into the annular rib (5), and in this reflector, (9) is fan-shaped when viewed from the front. (8) is a first parabolic reflecting surface having a focal point position and a first optical axis (g); 00 is a first parabolic reflecting surface located at a location other than the first parabolic reflecting surface (9) when viewed from the front; A second parabolic reflecting surface having the same focal point position (6) as the object reflecting surface (9) and a second optical axis (C), the first optical axis of the first parabolic reflecting surface (9) (B) is the second parabolic reflecting surface α0.
The position of the focal point (8
) at an angle of ( ), i.e., the first parabolic reflecting surface (9) intersects with the second parabolic reflecting surface (11) by an angle (θ) with the focus position (8) as the center. It is arranged so as to be tilted in a rotated state, and furthermore, (11) is a connecting reflective surface that connects this first parabolic reflective surface (9) and the second parabolic reflective surface α1, and this connecting The reflective surface αB is at the focal point position (8)
It is provided in the radial direction with the center at . The first parabolic reflecting surface (9) is colored yellow, and the yellow colored surface (9) is colored yellow.
a), 0z is a ground lead plate in which a local terminal (12b) is socketed so as to position the light emitting head (12a) at the focal point (the helmet is in contact with this tail terminal (12C)). It is a lead board.

Therefore, since the light emitting head (12a) of the light bulb (121) is at the focal point of the α value of the first and second parabolic reflecting surfaces (9) [(A)'+=, the light emitting head (12a) of the light bulb (121) is The bulb light heading toward the reflecting mirror (6) is reflected by the first parabolic reflecting surface (9), and the reflected light from the colored surface (9a) is simply a parallel uncolored reflection. The light (G) irradiates the far side of the headlamp (1) in a state where the far side of the headlamp (1) is separated from the colored reflected light (G). is a light distribution characteristic diagram in the present invention, and in the same figure (F
) is the center of illuminance of the uncolored reflected light (g), O) is the center of illuminance of the colored reflected light Q), and the gap (1) between these can be adjusted by changing the above-mentioned intersection angle.

As explained above, according to the present invention, it is possible to separate the light from a light bulb into uncolored light and colored light and provide illumination with a simple configuration of simply replacing a conventional reflecting mirror with a two-axis parabolic reflecting mirror. I can,
Therefore, two functions such as a conventional headlamp and a fog graph can be achieved with one illumination lamp.

Fig. 1 is an overall perspective view, Fig. 2 is a cross-sectional view, and Fig. 6 is related to a two-optical axis parabolic reflector (A).
0 is a front view, 0 is a side sectional view, 09 is an explanatory view, and FIG. 4 is a light distribution characteristic diagram.

(A)...Position of focal point, ([31...First optical axis, (
Gj)...second optical axis, (9)...first parabolic reflection surface,
OCj...second parabolic reflecting surface, (9a), yellow colored surface,
(6)...Two optical axis parabolic reflector.

Claims (1)

[Claims] (1) A two-optical axis parabolic reflector having a first parabolic reflecting surface and a second parabolic reflecting surface arranged so that their focal points coincide with each other and their optical axes intersect at the focal position. and a light bulb having a light emitting head disposed at the focal position of the reflecting mirror, and either the first parabolic reflecting surface or the second parabolic reflecting surface is formed as a colored surface, A vehicular lighting lamp which separates the light from the light bulb into colored light and non-colored light.