JP2001266608A - Signal lamp for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a lens is transparent and does not glitter and has a low visibility when it is looked from a side direction of a vehicle in a signal lamp for a vehicle forming a luminous intensity distribution by a conventional reflector. SOLUTION: A signal lamp 1 for the vehicle comprises a reflector 3 creating a pattern on the road surface and a transparent lend 4 covering a front of the reflector 3. At least one convex lend cut part 4a reflecting at least a part of the pattern of the reflector 3 is provided on the lens 4. A transparent part and the lens cut part 4a exist in a mixed state on the surface of the lens 4. Accordingly, which a light source 2 is lighted, light is diffused at the lens cur part provided on the surface of the lens to improve the visibility from a side direction.

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 such as a headlamp employing a transparent lens which has been widely used in vehicles in recent years. In order to perform design matching,
Similarly, the present invention relates to a vehicular signal lamp in which a lens has a transparent shape.

[0002]

2. Description of the Related Art FIG. 8 shows an example of the configuration of a conventional vehicle signal lamp 90 of this type.
0 is a light source 91 such as an incandescent light bulb, a reflecting surface 92 for reflecting the light from the light source 91 in the direction of illumination of the lamp 90 and reflecting the light source 91 and the reflecting surface 92 from the wind and rain. And a lens 93 for appropriately diffusing light from the reflection surface 92.

[0003] In recent years, a lighting device such as a headlamp, which forms a light distribution characteristic by the reflecting surface itself, such as a combination of small reflecting surfaces having different reflecting directions, has been widely adopted. The vehicle signal light 90
In order to achieve design matching on the side of, the reflection surface 92 is formed as a composite of the small reflection surface 92a, and the lens 93 is made transparent.

[0004]

However, in the vehicle signal lamp 90, the behavior of the vehicle, for example, the operation of the brake, etc., is determined by observing the lens surface from the outside. When the lens 93 is made transparent, the light emission from the surface of the lens 93 is insufficient for viewing from the side, which causes a problem that the visibility is reduced.

[0005]

The present invention, as a specific means for solving the above-mentioned conventional problems, comprises a reflecting surface having a pattern on a surface and a transparent lens covering the front surface thereof. In the vehicle signal lamp, the lens is provided with at least one of a lens cut portion having a convex surface on which the pattern of at least a part of the reflection surface is reflected,
An object of the present invention is to solve the problem by providing a signal light for a vehicle, wherein the lens surface is a mixture of a transparent portion and a lens cut portion.

[0006]

Next, the present invention will be described in detail based on an embodiment shown in the drawings. The reference numeral 1 shown in FIG. 1 is a vehicle signal lamp according to the present invention. The vehicle signal lamp 1 includes a light source 2, a reflecting surface 3, and a lens 4, and the reflecting surface 3 For example, a plurality of small reflective surfaces 3a having a convex shape for diffusing light are provided, and the light distribution characteristics are formed by the reflective surfaces 3 themselves.

[0007] Therefore, in the conventional configuration, the lens 4 is made transparent without a lens cut, thereby achieving design matching with, for example, a headlamp or the like. On the other hand, in the vehicle signal lamp 1 of the present invention, a lens cut portion 4a is provided on the surface of the lens 4, for example, on the back surface.

In the present invention, the lens cut portion 4a is not provided in close contact with the front surface of the lens 4, but is mixed with the transparent portion 4b in an appropriate ratio. ing. The lens cut portion 4a is basically formed as a convex spherical surface whose focal length f does not reach the reflection surface 3.

With this configuration, in the vehicle signal lamp 1 of the present invention, when the inside of the lamp 1 is viewed from the surface of the lens 4 when the light source 2 is not turned on, the reflection surface 3 is directly seen from the transparent portion 4b. Through the lens cut portion 4a, the reduced or inverted reflection surface 3 or a part thereof can be seen.

At this time, if the small reflecting surface 3a provided on the reflecting surface 3 is configured to form a regular pattern such as concentric or radial, for example, a reduction visible through the lens cut portion 4a is achieved. The reduced pattern can be seen in the image, and this lens cut section 4
The pattern seen through a changes with the movement of the line of sight.

Next, the appearance of the signal light 1 for a vehicle when the light source 2 is turned on, which is the original purpose, will be described. Basically, it is the same as in the non-lighting state. However, of the light reflected by the reflection surface 3 at an appropriate diffusion angle, the light transmitted through the lens cut portion 4a is refracted again by the lens cut portion 4a. Is performed, the diffusion angle becomes wider, and the lens cut portion 4a also looks brilliant from the side, that is, visibility from the side is improved.

Further, the signal light 1 for a vehicle may be replaced by a following vehicle or the like.
When viewed from substantially the front direction in the lighting state, as described above, the reflecting surface 3 that is a concave surface through the transparent portion 4b is used.
Is visible as it is, and the lens cut portion 4a itself appears to emit light due to diffusion by the convex spherical surface, so that the lens cut portion 4a is floating in the concave reflecting surface 3. When viewed, the light-emitting surface gives a sense of perspective and is rich in three-dimensional effect.

At this time, if the focal length f of the lens cut portion 4a is appropriately set shorter than the distance from the lens 4 to the reflection surface 3, the lens cut portion 4a is divided by the small reflection surface 3a. As a result, the pattern on the reflecting surface 3 is reduced and reflected, and the appearance can be further improved as compared with the case where the entire surface of the lens cut portion 4a emits light uniformly. This operation is performed both when the signal lamp 1 is turned on and when it is not turned on.

FIG. 2 shows another embodiment of the present invention. In the previous embodiment, the description has been made assuming that the lens cut portion 4a is provided on the lens 4. However, in actual implementation,
When the vehicle signal light 1 is provided with the inner lens 5, the inner lens 5 has a lens cut portion 5a.
May be provided, and at this time, the lens cut portion 4a may or may not be provided on the lens 4 side.

FIG. 3 shows still another embodiment of the present invention. In the previous embodiment, the description has been made assuming that the reflecting surface 3 is provided with the small reflecting surface 3a. However, the present invention is not limited to this. It does not do. That is, in the present invention, the reflection surface 3
As shown in FIG. 2, a cap 6 provided with, for example, a prism cut 6a is attached to the light source 2, and the reflecting surface 3 is a small reflecting surface such as a paraboloid of revolution. It is good even if it is not provided.

In this case, the cap 6 near the focal point of the reflection surface 3 is enlarged and projected on the entire surface of the reflection surface 3. Therefore, if the prism cut 6a is formed in a pattern, the light source 2 can be particularly improved. At the time of lighting, substantially the same operation and effect as those of the previous embodiment can be obtained.

FIGS. 4 to 6 show the lens cutting section 4a.
The lens 4 (or the lens cut section 5a) (or
This shows an example of the arrangement on the inner lens 5) surface. For example, when the lens 4 (the inner lens 5) has a circular shape, it may be arranged radially as shown in FIG. May be arranged concentrically as shown in FIG. 5, and more specifically, as shown in FIG.
(Inner lens 5) may be provided in part.

When the lens 4 (inner lens 5) is rectangular, the lens cut portion 4a (5a) may be formed in a matrix of vertical and horizontal directions or in an oblique line as shown in FIG. . The point is that the layout should match the external design of the lens 4 (the inner lens 5) or the design of the entire vehicle. In other words, characters, figures, etc. are displayed according to the position of the lens cut portion 4a (5a). It is a good thing.

FIG. 7 shows an example of the shape of the lens cut portion 4a (5a). In the vehicle signal light 1 of the present invention, as described above, the formation of the light distribution characteristic is as follows.
Since the lens cut portion 5a is basically formed by the reflecting surface 3 and the degree to which the lens cut portion 5a participates in forming the light distribution is low, it is possible to give the lens cut portion 4a (5a) a free shape. It is possible.

Therefore, the lens cut section 4a (5a)
It may be circular (FIG. 7-A), oval, or
It may be elliptical (FIG. 7-B), or rectangular or rectangular (FIGS. 7-C and 7-D).
As shown in FIG. 7-E, any shape such as a star shape may be used, and it is possible to match the design of the signal light 1 for a vehicle, the vehicle, and the like.

[0021]

As described above, according to the present invention, in a vehicle signal lamp comprising a reflecting surface having a pattern on a surface and a transparent lens covering the front surface, the lens has the reflecting surface. At least one of the lens cut portions having a convex surface on which at least a part of the pattern is reflected.
And the lens surface is a vehicle signal lamp in which the transparent portion and the lens cut portion are mixed, so that when the light source is turned on, the lens cut portion is provided on the lens surface, so that the lens cut portion diffuses light, and It will also improve the visibility from one side,
This is an extremely effective effect for improving the performance of this kind of vehicle signal lamp.

Further, when viewed from the front and rear of the signal lamp, both the lens cut portion and the reflection surface provided on the lens surface appear bright, so that the lens cut portion rises up in the concave reflection surface. It provides an unprecedented novel appearance, and is extremely effective in improving the aesthetic appearance of this type of vehicle signal lamp.

[Brief description of the drawings]

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

FIG. 2 is a sectional view showing another embodiment of the vehicular signal lamp according to the present invention.

FIG. 3 is a sectional view showing still another embodiment of the vehicular signal light according to the present invention.

FIG. 4 is an explanatory view showing a state of arrangement of a lens cut portion on a lens surface of the vehicular signal light according to the present invention.

FIG. 5 is an explanatory view showing another arrangement state of the lens cut portion on the lens surface of the vehicular signal light according to the present invention.

FIG. 6 is an explanatory view showing still another arrangement state of the lens cut portion on the lens surface of the vehicular signal light according to the present invention.

FIG. 7 is an explanatory diagram illustrating an example of a shape of a lens cut portion.

FIG. 8 is a sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Signal light for vehicles 2 ... Light source 3 ... Reflecting surface 3a ... Small reflecting surface 4 ... Lens 4a ... Prism cut part 4b ... Transparent part 5 ... Inner lens 5a ... Prism cut part 6 ... … Cap 6a …… Prism cut

Claims (2)

[Claims] A reflective surface having a pattern on the surface;
A vehicular signal lamp comprising a transparent lens covering the front surface thereof, wherein the lens is provided with at least one of a lens cut portion having a convex surface on which the pattern of at least a part of the reflection surface is reflected, and A signal light for a vehicle, characterized in that a through portion and a lens cut portion are mixed. 2. The vehicular signal lamp according to claim 1, wherein a focal length of the lens cut portion is set shorter than a distance from the lens to the reflection surface.