JPS61220201A - Lamp apparatus 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] [Technical field of invention] This invention relates to a vehicle lamp.

[Description of Prior Art] As a conventional vehicle lamp, for example, Japanese Patent Application Laid-Open No. 111157-7
It is proposed in No. 4237.

゛This light is an indoor-installed stop lamp, and is installed so that the light projection surface is located on the rear window so that it can quickly notify vehicles behind that the vehicle is braking.

However, in such conventional stop lamps, the light from the light source was simply emitted towards the direction of the vehicle. When a vehicle with a high seat follows the vehicle in close proximity, it is difficult for these buses, trucks, etc. to see the light beams of the stop lamps of the passenger vehicle.

Also, contrary to the above, if a low-seat vehicle such as a passenger car approaches the rear of a bus or truck with a high-positioned stop lamp, the light beam of the stop lamp should be directed toward the rear. Hard to see from passenger cars.

[Object of the Invention] The present invention has been made by focusing on such conventional problems, and an object of the present invention is to provide a vehicle lamp that improves the visibility of the braking of the own vehicle by improving the radiation direction of the light beam. With the goal.

[Summary of the Invention] In order to achieve the above object, the present invention provides a vehicular lamp that radiates light rays emitted from a light source in a housing to the rear of the vehicle from a radiation opening of the housing. A reflector is provided to reflect a portion of the light beam and radiate it to the rear of the predetermined wide angle, so that the light beam from the light source is radiated not only to the rear of the vehicle in a substantially horizontal direction but also to the rear of the predetermined wide angle. did.

[Explanation of Examples] The present invention will be described in detail below.

FIG. 1 is an explanatory diagram showing an embodiment of this generator. First, the configuration will be explained. In this example, an example of a stop lamp SPL provided on the rear bar cell of a vehicle is shown as a lamp, similar to that shown in the conventional example. This stop lamp SPL has a light source 7 inside a housing 5.
and the radiation opening 5a of the housing 5, an inner lens 11 having a Fresnel lens 11a on the light 117 side and a fisheye lens 11b on the opposite side, and an outer lens 13 having a predetermined light refractive index are provided. A reflector 21 is provided below the space formed by the inner lens 11 and the outer lens 13 to reflect a part of the light beam from the fisheye lens 11b toward the outer lens 13. Note that 9 is a light beam emitted from the light source 7, 15 is a windshield, 17 is a light beam emitted substantially horizontally to the rear of the vehicle, and 19 is a sealing member. A1 is an area designed so that the light beam 17 of the stop lamp SPL can be clearly seen from the rear vehicle that normally drives.

The reflector 21 has a reflecting surface 2 for reflecting a part of the light beam emitted from the fisheye lens 11b upward through the outer lens 13, that is, in a predetermined direction at a wide angle.
1a is set in G. This predetermined direction is based on the assumption that a vehicle with a high seat such as a bus or truck arrives relatively close to the rear, and is directed toward an area A2 where the light beam of the stop lamp SPL can be clearly seen from these bus trucks, etc. It is designed so that the light beam 23 of the stop lamp SPL is emitted. The reflective surfaces 21a are formed in a plurality of stages in a tjA tooth shape, and the light rays reflected from each reflective surface 21a are radiated to the outside via the outer lens 13, forming the rays 23 radiated upward and rearward. The area A2 should not be expanded unnecessarily, and should have a sufficient amount to allow the light beam of the stop lamp SPL to be seen from vehicles such as buses and trucks with high seats when these vehicles approach. It is preferable to set the degree of reduction within a range such that the power required by the light source 7 is minimized.

In general, the light rays from the fisheye lens 11b are partially emitted downward in the past, so it is possible to reflect the partially emitted light rays to the outer lens 13 in the direction G. For example, the stop lamp SPL in this embodiment is a conventional stop lamp with a reflector 2.
It can be constructed by adding only 1.

Next, the operation of the stop lamp SPL having the above configuration will be explained.

Now, suppose that a truck is following behind a passenger car, and the driver of the passenger car performs an operation to press the brake pedal. Then, the light source 7 of the passenger car lights up, and the light ray 9 from the light source 7 is split into a light ray that goes straight to the outer lens 13 side through the inner lens 11 and a light ray that goes to the reflection pair 21, and then heads toward the area A1. The light ray 17 that travels along with the reflector 2
1 and passes through the outer lens 13 to the area A.
The light traveling towards 2 becomes 1!23.

Therefore, since the light ray 17 emitted approximately horizontally to the rear of the vehicle passes through the area A1, the light ray from the stop lamp SPL is visible from the rear vehicle that normally drives, and the light ray 23 emitted upward and rearward of the vehicle passes through the area A2. Therefore, the light beam of the stop lamp SPL can be seen by the drivers of vehicles with high seats even when they approach.

Next, another embodiment will be described.

In this embodiment, the reflector 21 of the stop lamp SPL shown in FIG. 1 described in the above embodiment is turned upside down, and the reflector 21 is provided on the upper side. Assume that this stop lamp is installed at the rear of a tall vehicle such as a bus or a slack vehicle.

In this way, the light rays emitted from the stop lamp approximately horizontally rearward (see reference number 17 in Figure 1) are clearly visible from the rear vehicle that is normally driving, and, contrary to the above embodiment, are also emitted downward and rearward. A ray of light is created (not shown)
Therefore, even if a low-seat vehicle such as a passenger car traveling behind a tall vehicle approaches the tall vehicle,
This makes it possible to see the downward and rearward beam of light from a stop lamp installed at the rear of a tall vehicle.

In addition, although the above example stop lamp was explained,
The same situation applies to vehicle lights other than stop lamps, such as tail lamps and signal lamps, and similarly to the above example, these vehicle lights are equipped with the above-mentioned reflectors (
Of course, by providing the light beam 21 in FIG. 1), it is possible to create a vehicle lamp that emits light not only approximately horizontally rearward of the vehicle but also at a predetermined rearward direction of the vehicle.

[Effects of the Invention] As described above, according to the present invention, with an extremely simple configuration in which a reflector is simply added to a conventional vehicle lamp, it can be used not only at the approximately horizontal rear of the vehicle but also at predetermined other locations. It is possible to provide a vehicle lamp that can emit light even to the rear and can have a safety-enhancing structure depending on the vehicle conditions.

[Brief explanation of the drawing]

FIG. 1 is an explanatory cross-sectional view showing one embodiment of the present invention. 5...Housing, 7...Light source 71...
Inner lens 13...Outer lens 21...Reflector A1...Area where the stop lamp of the vehicle ahead can be clearly seen from the rear of the vehicle under normal conditions A2...Low seat in front of the driver's seat of a vehicle with a high seat The area where the stop lamp installed on the side of the vehicle is clearly visible.

Claims (1)

[Claims] In a vehicle lamp that radiates light rays emitted from a light source within a housing toward the rear of the vehicle from a radiation port of the housing, a portion of the light rays from the light source are reflected within the housing and are radiated rearward at a predetermined wide angle. A vehicle lamp characterized by being provided with a reflector.