JPS6321702A - Lamp apparatus for vehicle - Google Patents

Abstract

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

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a combination lamp used by being attached to the back of an automobile, in which various lamps such as turn signal lamps, backup lamps, stop lamps, and tail lamps are integrated into one housing. The present invention relates to a vehicle lamp built into a vehicle.

[Conventional technology]

Generally, in this type of combination lamp, each lamp has an independent function, so the housing is divided into a plurality of chambers, and an incandescent bulb is used as a light source for each lamp. The lamp has a configuration in which lenses with individual shapes or colors are attached to the front surface of the lamp to match the function of each lamp.

[Problem that the invention seeks to solve]

In the conventional example described above, the housing is divided according to the function of each lamp, and a light bulb is attached to each one, which not only makes it impossible to make the whole compact, but also makes it difficult to see the light emitting surface of each lamp because it does not emit light uniformly. There is a problem that it is bad.

Furthermore, since an incandescent lamp is used as a light source, there are problems in that not only the response of the stop lamp in particular is slow, but also the power consumption is high.

[Means for solving problems]

As a specific means for solving the problems of the conventional example, the present invention provides a backup lamp chamber in a part of a rectangular housing, houses a plurality of halogen lamps as light sources in the backup lamp chamber, and at least It has a light transmitting part in a part that corresponds to the placement position of the lamp,
In addition, the present invention provides a vehicle lighting device characterized in that a printed circuit board on which a large number of LEDs serving as a turn signal lamp, a tail lamp, and a stop lamp are attached, and an outer lens are disposed across the front of the housing. By using LEDs for the signal lamp, tail lamp, and stop lamp, responsiveness is improved, and the uniform light emission over the entire surface significantly improves visibility. Furthermore, by using a halogen bulb as the light source for the backup lamp,
Visibility is further improved by changing the color of the light emitting surface during operation.

〔Example〕

Next, the present invention will be explained in more detail with reference to the illustrated embodiment. Reference numeral 1 denotes a housing having a rectangular shape. A part of the housing is formed to protrude toward the back side to form a backup lamp chamber 2. A plurality of small halogen light bulbs 3 are attached via a supporting printed board 4. In this case, the small halogen light bulbs 3 are arranged, for example, in a line of three in the vertical direction with respect to the supporting printed board 4, and in a plurality of rows in the horizontal direction. Between each row of these halogen light bulbs, a partition-shaped reflective portion 4a having a delta-shaped cross section is provided.

A printed circuit board 5 is attached in series to the front side of these halogen light bulbs 3 and the front side of the housing 1. A large number of LEDs 6 are attached to this printed circuit board, and
A large number of through holes 7 are provided. As shown in FIG. 2, the arrangement of the LEDs 6 and the through holes 7 is such that the through holes 7 are formed into a vertical rectangle, and for example, the LEDs 6 are arranged five times in the vertical direction.
Taking as an example a state in which LEDs 6 are mounted adjacent to each other through mounting holes 8, rows of LEDs 6 and through holes 7 are arranged horizontally alternately at approximately equal intervals, and these through holes 7 are arranged at least in the above-mentioned manner. They are provided not only in correspondence with each row of halogen light bulbs 3, but also in correspondence with the reflecting section 4a. Note that if the printed circuit board 5 is made of a clear material, the through holes 7
does not necessarily need to be provided.

Furthermore, the inner lens 9 and the outer lens 10 are attached in series on the front side of the housing 1, that is, on the front side of the LED 6 in a superimposed state, thereby completing the lamp.

The inner lens 9 used has a fisheye cut on its inner surface. Further, the outer lens 10 is clear or smoke colored.

The LED 6 used has the structure shown in FIGS. 5 and 6. That is, the convex lens portion 14 has lead frames 11 and 12, and converts the light a emitted from the chip 13 mounted on the lead frame 11 to the front side into substantially parallel light.
An LED 6 is used in which a bowl-shaped reflecting portion 15 is integrally formed on the circumferential side of the convex lens to reflect the light emitted from the side into substantially parallel light rays.

(Function) In the vehicle lighting device of the present invention having the above configuration, the LED 6 is used as a turn signal lamp, a tail lamp, or a stop lamp, so the front surface of the lighting device emits light uniformly, and the backup lamp is When the light is turned on, the light is illuminated directly or through the through hole 7 of the printed circuit board by being reflected by the reflective part 4a. In particular, the light from the halogen bulb is illuminated by the inner lens 9.
The fisheye cut causes the light to be diffused and evenly illuminate the front of the lamp. Furthermore, since the emitted light color of the LED 6 and the emitted light color of the halogen bulb are different, the displayed color will differ depending on the lamp capacity.

(Effects) As explained above, the vehicle lamp according to the present invention uses a large number of LEDs as turn signal lamps, tail lamps, and stop lamps, thereby reducing power consumption over a wide area and uniformly over the entire surface. Not only does it serve as a light-emitting surface and visibility is significantly improved, but especially in the case of stop lamps and turn signal lamps, the quick response has the excellent effect of preventing rear-end collisions.

In addition, since the light source of the backup lamp and the LEDs of the turn signal lamp, tail lamp, and stop lamp emit light in different colors, the emitted light color changes even when either lamp is turned on, which is an excellent feature that further improves visibility. be effective.

Furthermore, since an inner lens with a fisheye cut is used, no matter which lamp is turned on, the entire surface emits light uniformly, which also has the excellent effect of improving visibility.

[Brief explanation of drawings]

FIG. 1 is a front view of a vehicle lamp according to the present invention, and FIG. 2 is a partially cutaway and enlarged front view of the same lamp.
Fig. 3 is a schematic plan view showing a part of the lamp with a cutaway;
Figure 4 is IV-rV of Figure 3? FIG. 5 is an enlarged perspective view of an LED used in the lamp, and FIG. 6 is an enlarged sectional view of the LED. 1...Housing 2...Backup lamp 3...Halogen bulb 4...Supporting printed circuit board 5...Printed circuit board 6...LED 7...Through hole 8...Mounting hole 9 ... Inner lens 10 ... Outer lens Fig. 4 Noah Fig. 5 Fig. 6 etc.

Claims (4)

[Claims] (1) A backup lamp chamber is provided in a part of the rectangular housing, a plurality of halogen lamps are housed as light sources in the backup lamp chamber, and a light transmitting portion is provided at least in a portion corresponding to the installation position of these halogen lamps. A vehicle lamp characterized in that a printed circuit board on which a large number of LEDs serving as a turn signal lamp, a tail lamp, and a stop lamp are attached, and an outer lens are disposed across the front of the housing. (2) The vehicle lamp according to item 1 above, wherein an inner lens with a fisheye cut is disposed inside the outer lens. (3) The vehicle lamp according to item 1, wherein the light transmitting portion is formed in a rectangular shape and is provided alternately in the vertical direction with the arrangement of the LEDs. (4) The vehicle lamp according to item 1, wherein the LED integrally includes a convex lens portion and a reflecting portion on the circumferential surface of the convex lens portion.