JP2573830Y2 - Vehicle lighting - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular lamp, and more particularly to a vehicular lamp having an improved appearance.

[0002]

2. Description of the Related Art In general, a vehicular lamp is provided with a diffusion step for each of an inner lens and an outer lens attached to a lamp body in order to obtain required light distribution characteristics. The required light distribution characteristics are obtained by the light diffusion effect. On the other hand, the reflective surface formed on the inner surface of the lamp body is entirely formed as a paraboloid or a spherical surface, and functions to reflect light in a required direction.
The reflection surface itself is formed as a smooth surface.

[0003]

In such a lamp, when a transparent lens is used for the outer lens, the inner lens and the reflection surface are observed from the outside of the lamp through the outer lens. Since the reflection surface is a smooth surface, it looks almost uniform in brightness. However, due to the diffusion step provided in the inner lens, the inner lens looks striped from the outside, so that the diffusion step of the inner lens becomes more prominent than the reflection surface, and as a result, the inner lens looks prominent. Would.

In particular, a turn signal lamp often uses a transparent lens as an outer lens and an amber lens as an inner lens in order to unify the design with a headlamp. Then, the amber color of the inner lens becomes noticeable in a stepped manner through the outer lens, and the appearance of the turn signal lamp is degraded. It is an object of the present invention to provide a vehicular lamp with an improved external appearance in which the inner lens is clearly visible.

[0005]

SUMMARY OF THE INVENTION The vehicle lamp of the present invention comprises:
The inner lens attached to the lamp body and the reflection surface formed on the inner surface of the lamp body are provided with diffusion steps of the same appearance, and these diffusion steps make the inner lens and the reflection surface completely integrated. Make it visible.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 to 3 show an embodiment of the present invention. Here, an example in which the present invention is applied to a front turn signal lamp is shown. 1 is a partially exploded perspective view with a part thereof cut away, FIG. 2 is a front view with a part cut away in an assembled state, and FIG. 3 is a sectional view taken along line AA of FIG. In these figures, an insulating material such as a resin is molded to form a thin lamp body 1 having a smaller vertical dimension than the horizontal dimension, and aluminum is vapor-deposited on the inner surface of the lamp body 1 to form a reflective surface 11. Make up. In addition, a light bulb 3 is inserted into the lamp body 1 using a socket 2 fitted into a hole formed in the back of the lamp body 1.
I support.

Further, an amber inner lens 4 having a square cap shape is provided in the lamp body 1 so as to cover the light bulb 3, and one side edge 41 is attached to the lamp body 1.
The inner lens 4 is fixed to the lamp body 1 by fastening the protrusion 42 provided on the other side to the lamp body 1 by bolts 6. ing. Further, a transparent outer lens 5 is mounted on the front opening of the lamp body 1. The outer lens 5 has a seal leg 51 provided on a peripheral portion thereof inserted into a seal groove 13 provided on a peripheral portion of the lamp body 1, and is fixed to the lamp body 1 in a sealed state by an adhesive 7 such as hot melt.

The inner lens 4 has a required prism (not shown) integrally formed on the inner surface of the front surface of the cap shape, and diffuses the light emitted from the bulb 3 so that the outline of the bulb cannot be seen from the outside. To do. In addition, a plurality of steps extending in the left-right direction and having a cylindrical cross section are formed in the front outer surface of the inner lens 4 in the vertical direction, so that light from the bulb is diffused in the vertical direction. A vertical diffusion step 43 is formed.

The reflecting surface 11 formed by the inner surface of the lamp body 1 forms a plurality of convex steps extending in the horizontal direction at the same time as the molding of the lamp body 1. The vertical diffusion step 14 is formed by evaporating aluminum or the like. In this embodiment, the vertical diffusion step 14 is formed with the same width dimension and pitch dimension as the vertical diffusion step 43 of the inner lens 4. On the other hand, on the inner surface of the outer lens 5, a left-right diffusion step 52 in which a plurality of vertically extending steps having a cylindrical cross section are arranged in the left-right direction is integrally formed.

Therefore, in the lamp having this configuration, the light emitted from the bulb 3 is vertically diffused by the vertical diffusion step 43 when passing through the front of the inner lens 4. The light transmitted through the side surface of the inner lens 4 is reflected by the reflection surface 11 of the lamp body 1, and is diffused in the vertical direction by the vertical diffusion step 14 provided on the reflection surface. Then, when these lights pass through the outer lens 5, they are diffused in the left-right direction by the left-right diffusion step 52. This makes it possible to obtain required light distribution characteristics sufficiently diffused vertically and horizontally regardless of the thickness of the lamp.

In this lamp, particularly when the lamp is viewed from the front when the lamp is not lit, the inner lens 4 and the lamp are formed by the same-shaped vertical diffusion steps 43 and 14 formed on the inner lens 4 and the reflecting surface 11, respectively. The inner surface of the hoty 1 can be seen as being totally integrated, and the amber color of the inner lens alone does not stand out as in the prior art, and the appearance of the lamp can be improved.

In this embodiment, the outer lens 5
The left-right diffusion step 52 provided on the front turn signal lamp has substantially the same appearance as the left-right diffusion step normally provided on the lens of the head lamp adjacently arranged when the front turn signal lamp is mounted on a vehicle. The design is unified with the headlamp, which is advantageous in terms of automobile design. Incidentally, the same steps as the front surface may be formed on the side surface of the inner lens 4. When the type and shape of the lamp are different, it is possible to provide a left and right diffusion step on the inner lens and the reflection surface, and provide a vertical diffusion step on the outer lens.

[0013]

As described above, according to the present invention, the inner lens and the reflecting surface have the same diffusion step in appearance, so that the inner lens and the reflecting surface have a completely integrated appearance. Therefore, only the inner lens does not stand out, and the appearance of the lamp can be improved.

[Brief description of the drawings]

FIG. 1 is a partially exploded perspective view of one embodiment of the present invention.

FIG. 2 is a partially cutaway front view of the embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lamp body 3 Light bulb 4 Inner lens 5 Outer lens 11 Reflection surface 14 Diffusion step 43 Diffusion step 52 Diffusion step

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F21Q 1/00 F21M 3/12

Claims (1)

(57) [Scope of request for utility model registration] 1. A lamp body that supports a light bulb and has an inner surface formed as a reflection surface, an inner lens attached to the lamp body so as to cover the light bulb, and an opening mounted in the lamp body. A vehicle lamp comprising: an outer lens having a diffusion step having an identical outer shape on the inner lens and the reflection surface.