JPH0425767Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> The present invention relates to an automobile lamp, and more specifically to an automobile lamp which is provided with an outer lens and an inner lens, and in which a striped shaded portion is provided on the outer lens. It is something.

<Prior Art> Modern automobile lamps are regarded as part of the car body design, and it is necessary to devise ways to make the lamps as inconspicuous as possible when they are not lit.

Therefore, an automobile lamp was devised in which an outer lens was formed with a shaded portion (mask) colored in the same color or similar color to the vehicle body color (see, for example, Japanese Utility Model Application No. 65909/1983).

However, in this type of lamp, as shown in FIG. 4, a part of the direct light _P2 from the bulb 2 is cut off by the shade part 31 of the outer lens 3.
There was a problem where the amount of light distribution tended to be insufficient.

<Problems to be solved by the invention> The present invention was made in view of these conventional problems, and effectively utilizes the direct light from the bulb, which was conventionally cut off by the shade of the outer lens. , it is an object of the present invention to provide an automotive lamp that can provide a sufficient amount of light distribution.

<Means for Solving the Problems> The automotive lighting device of the present invention that achieves the above object includes an outer lens and an inner lens, and has a striped shaded portion on the outer lens. A reflecting mirror is installed at the rear of the lens, and a reflecting surface for reflecting direct light from the bulb toward the bulb is formed on a portion of the inner lens that faces the shaded portion of the outer lens.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

The automotive lamp of the present invention includes a lamp 1, a bulb 2 and a reflector 5 installed inside the lamp, and an outer lens 3 installed in the front opening of the lamp 1.
and an inner lens 4, and a colored filter 6 installed inside the lamp body 1 as required.

Then, the outer lens 3 is formed with horizontally striped shaded portions 31, and the space between each shaded portion 31 forms an effective lens portion 32. That is, the shade part 31
This is to harmonize with the vehicle body and make the presence of the lamp as inconspicuous as possible when it is not lit. Grooves 31a of an appropriate width are formed on the outer surface of the outer lens 3 at appropriate intervals in the horizontal direction. , an opaque mask 31b is installed on the inner surface of the outer lens 3 to cover the groove 31a, and the inside of the groove 31a is covered with paint, hot stamp foil, tape 31c, etc. of the same color or similar color to the vehicle body. It will be done. Therefore, the direct light P ₁ , P ₂ to the reflected light P ₃ of the bulb 2 are controlled by the inner lens 4,
Light is distributed forward through the effective lens portions 32 between the respective shade portions 31 .

The inner lens 4 basically has a Fresnel lens step 41 formed on the surface facing the bulb 2, and a diffusion lens step 42 formed on the surface facing the outer lens 3. A reflecting surface 43 is formed in a portion 4a facing the shaded portion 31 of the outer lens 3 to reflect direct light P ₂ from the bulb 2 which is about to enter the shaded portion 31 of the outer lens 3 toward the bulb 2. The reflective surface 43 is formed by a portion 4a of the inner lens 4 facing the shade portion 31 of the outer lens 3 (two parallel lenses in the figure).
(indicates the part sandwiched by the dotted chain line L ₁ ), attach valve 2.
is formed so as to be able to reflect the direct light P ₂ towards the bulb 2 again. That is, this reflective surface 43
A lens step is formed that totally reflects the direct light P ₂ toward the bulb 2, or an appropriate lens step is formed by vapor deposition on the surface thereof.

Of the light emitted from the bulb 2, the normal direct light _P1 passes through the Fresnel lens step 41 and the diffusion lens step 42 of the inner lens 4.
The direct light P ₂ which is controlled by the effective lens part 32 of the outer lens 3 and is about to enter the shade part 31 of the outer lens 3 is reflected by the reflective surface 43 of the inner lens 4 toward the bulb 2. The light enters the reflecting mirror 5, is reflected by the reflecting mirror 5, and is mainly transmitted to the outer lens ₃ along with other reflected light P3.
The light is distributed through the effective lens section 32 at the center of the lens.

Further, in the second embodiment shown in FIG.
A reflecting surface 33 is formed to reflect the direct light P ₂ toward the bulb 2, etc. At this time, a portion 4a of the inner lens 4 facing the shaded portion 31 of the outer lens 3 is formed into a transparent through hole 44. In the case of this second embodiment, of the light emitted from the bulb 2, the normal direct light _P1 is controlled by the Fresnel lens step 41 and the diffusion lens step 42 of the inner lens 4 and is directed to the outer lens. Light is distributed from the effective lens portion 32 of the lens 3,
The direct light P ₂ that is about to enter the shade part 31 of the outer lens 3 is reflected by the reflective surface 33 formed on the inner surface of the shade part 31 of the outer lens toward the bulb 2 and into the lamp room, and becomes reflected light P ₂₁ , P ₂₂ In particular, the reflected light P ₂₂ reflected toward the bulb 2 enters the reflecting mirror 5 and is distributed along with other reflected light P ₃ mainly through the effective lens portion 32 at the center of the outer lens 3. .

Furthermore, in the one shown in FIG. 3, a reflecting surface 51 for controlling reflected light P ₄ downward is formed extending from the lower part of a reflecting mirror 5 installed behind the bulb 2. Therefore, the reflected light P ₃ incident on the reflecting mirror 5
is the effective lens portion 32 at the center of the outer lens 3
Reflected light that is distributed through and incident on the reflective surface 51
P ₄ is the effective lens part 3 at the bottom of the outer lens 3
Light is distributed through 2.

<Effects of the invention> Since the automotive lamp of the present invention is constructed in this way, the direct light from the bulb, which was conventionally cut off by the shaded part of the outer lens, can be controlled to the effective lens part of the outer lens, and the bulb can be directed to the effective lens part of the outer lens. Direct light can be used effectively, so even a lamp with a striped shaded portion formed on the outer lens can provide a sufficient amount of light distribution.

Moreover, since it is only necessary to form a reflective surface on a part of the inner lens, it is easy to manufacture and can be provided at low cost.

Therefore, the intended purpose can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the first embodiment of the present invention;
The figure is a sectional view showing a second embodiment of the present invention, FIG. 3 is a sectional view showing another embodiment, and FIG. 4 is a sectional view showing a conventional example. In the figure, 2 is a bulb, 3 is an outer lens, 31
32 is a shaded portion, 32 is an effective lens portion, 4 is an inner lens, 4a is a portion, 43 is a reflecting surface, 5 is a reflecting mirror, and P ₁ and P ₂ are direct light beams.

Claims (1)

[Scope of utility model registration request] In an automotive lamp comprising an outer lens and an inner lens, and in which the outer lens has a horizontally striped shaded part, a reflecting mirror is provided behind the bulb to control direct light from the bulb to the effective lens part of the outer lens. a Fresnel lens step is formed on the surface of the inner lens facing the bulb, and a diffusing lens step is formed on the surface facing the outer lens; An automotive lamp characterized in that a reflective surface is formed on a portion facing the shade portion to reflect direct light from the bulb toward the bulb.