JPS61284002A - 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 (Field of Industrial Application) The present invention relates to a vehicular lamp with a small loss of light quantity and a large effective light emitting area.

(Prior Art) Conventionally, incandescent lamps that emit white light and colored lenses that emit a specified light distribution color have been used for vehicle rear combination lamps, high-mounted stop lamps, and the like. If you want to put letters or patterns on the lens surface of this type of lamp, you can paste opaque letters or patterns on the lens surface, or conversely, form a colorless part with low transmittance on a part of the lens. (Nissan Motor Co., Ltd., Service Bulletin, Nirasan Fair Redisette, September 1980 issue, page V-8), but when the lamp is lit, light does not pass through the text and pattern. In those parts, the light transmittance is low, so there is a loss in the amount of light. Therefore, in order to expand the effective light emitting area of the lamp by that amount, there is a problem that the lamp itself must be made larger or the amount of light emitted from the lamp must be increased.

(Object and Structure of the Invention) The present invention has been made in view of the above points, and an object of the present invention is to provide a vehicle lamp with a small loss of light quantity and a large effective light emitting area. On the surface of the achromatic lens of a vehicle lamp or a light emitting source made up of a group of LECs, a colored transparent body with a similar color to the emitted light color of the light source is placed as letters or patterns.

(Example) The present invention will be explained below based on the drawings.

FIGS. 1 and 2 show an embodiment of a vehicle lamp according to the present invention, with FIG. 1 being a front view of the lamp and FIG. 2 being a sectional view taken along line A-A in FIG.

The lamp is made by joining a housing 1 and a lens 2 with adhesive or the like, and has a printed board 3 fixed to the housing 1 inside, and a large number of lights that emit light of a specific wavelength (for example, red) on this printed board 3. The ED4s are arranged densely.

On the other hand, the lens 2 is a colorless transparent body, and a patterned character portion 5, such as ABC, is formed on a part of the lens 2, which is a colored transparent body that approximates the emission wavelength (for example, red) of the LED 4. The colored portion and uncolored portion of this lens 2 may be reversed.

The pattern character portion 5 made of a colored transparent material may be provided by integral molding on the lens surface as shown in FIG. 3 (A), or may be provided by integral molding on the back surface of the lens as shown in FIG. Alternatively, it may be provided as a thin film by hot stamping, painting, etc., as shown in FIG.

According to the lamp configured in this way, when the lamp is turned off, the pattern character part 5 is recognized as a colored color (red in this case), but when the LED 4 is energized when the lamp is turned on, a specific wavelength (this color) is recognized from the LED 4. Since the light (in case of red) passes through the pattern character part 5, which is a colored transparent body, and exits to the outside, there is no loss of light quantity.Moreover, since the pattern character part 5 has the same color as the emitted light from the LED 4, the lens surface is uniform. is emitted. At this time, the pattern character portion 5 is almost invisible to the naked eye, so it does not pose a problem in terms of design.

4 and 5 show other embodiments of the vehicle lamp according to the present invention, in which FIG. 4 is a front view of the lamp, and FIG. 5 is a sectional view taken along line B-8 in FIG. 4.

This embodiment also has a housing 1 and a lens 2 joined together, and a large number of LEDs 4 arranged regularly on a printed board 3 fixed to the housing 1.The difference from the previous embodiment is that the lens 2 is colorless and transparent over its entire surface or is thin. colored,
Several LEDs 4 forming a letter or pattern
A colored transparent body 4a with the same color as the LED light emitting color is attached to the chip part.
The point is that

In this way, when the lamp is off, the pattern letters are recognized as colored through the lens 2, but when the lamp is on, the light from the LED 4 passes through the colored transparent body 4a that constitutes the pattern text, so there is no loss in the amount of light. Moreover, since the color of the light emitted by the LED 4 and the color of the colored transparent body 4a are similar in color, the entire surface of the lamp emits light uniformly.

In the above two embodiments, the pattern text portion was colored, but
On the other hand, it is of course possible to color the lens or the portion of the light emitter other than the pattern part.

(Effects of the Invention) As explained above, in the present invention, a colored transparent body with a color similar to the emission color of the light source is provided as characters or patterns on the lens of a vehicle lamp or the surface of the light source, and the other parts are Since it is made of a colorless or nearly colorless transparent material, when the lamp is off, letters and patterns made of the colored transparent material appear, and when the lamp is on, there is no loss of light amount due to the patterned text, and the entire lens surface emits light uniformly.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of a vehicle lamp according to the present invention, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG.
B) and (C) are diagrams showing different methods of forming a patterned character portion on a lens, FIG. 4 is a front view of another embodiment of a vehicle lamp according to the present invention, and FIG. 5 is a line B-B in FIG. 4. FIG. 1...Housing, 2...Lens, 3...Printed board, 4...LED, 5...Pattern text - Nikube Ward C

Claims (2)

[Claims] (1) A light emitting source having a specific wavelength of light is disposed in a space surrounded by a housing and a lens, the lens is made of a colorless or transparent material close to color, and the surface of the lens or the light emitting source is A vehicular lamp characterized in that a character part or a pattern part made of a transparent body colored in a similar color to the light emitting source is formed on the vehicular lamp. (2) The vehicle lamp according to claim 1, wherein the light emitting source is composed of a group of LEDs.