JPS638899A - Road traffic signal apparatus - 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] Industrial applications The present invention relates to a road traffic signal.

Conventional technology Road traffic signals are made by arranging three light bulbs in a row and flashing them at staggered times. There is.

Additionally, since a light bulb is used as a light source, it has short lifespan and high power consumption. The present invention provides a road traffic signal that eliminates these drawbacks.

Means for Solving the Problems The present invention uses a single mercury lamp with high efficiency and long life as a light source to generate the brightness necessary for traffic lights, and rotates filters with different light colors to produce red, Creates blue and yellow colored light, and expands and expands this colored light using optical fibers.
It is intended to be displayed.

Function: The red, green, and yellow signals necessary for automobile traffic can be provided with less than half the volume and weight of conventional traffic lights, which reduces the occupancy rate of traffic lights in the road space. It is expected that the landscape will improve.

Furthermore, by using a high-intensity light source, it is expected that the luminance of the signal will increase, and visibility will be improved.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the road traffic signal according to the embodiment of the present invention is roughly composed of a light source section 2, a filter rotation section, an optical transmission/display section, and a signal control section 1o. The light source section consists of a mercury lamp (approximately 40 W) 4, which is a high-brightness, long-life light source, a reflector 5 installed on the back of the lamp, and a milky white diffuser 3 placed in front of the lamp. The lamp allows a uniform and high brightness to be presented on the opalescent diffuser. The filter rotating section in the center of the traffic light consists of a rotating disk 6 containing a built-in color filter as shown in FIG. This part has the function of converting high-intensity white light into red, blue, and yellow, which are the required light colors for traffic lights, by setting a time difference. Since there is a difference in the presentation time of the colored lights of current traffic lights, by mechanically designing the gear connected to the motor to match this, the light colors can instantly switch between red, blue, and yellow, and the presentation time can be changed accordingly. It also has a structure that can change depending on the color of light. The optical transmission/display section that displays the light that has passed through the filter rotation section to the driver is composed of several dozen optical fibers 9 and a light diffuser 10 attached to the tip of each fiber. The layout of the light emitting points of the optical transmission/display section is arranged in concentric circles as shown in FIG. 3, taking into consideration the uniformity of brightness when the signal is viewed from a distance. At the tip of each optical fiber, there is a light-diffusing device that prevents the directivity of light, which is a drawback of optical fibers (if the angle is shifted even slightly, the brightness decreases and becomes difficult to see) by diffusing the light to the surrounding area. Set up a container.

Effects of the Invention According to the road traffic signal of the present invention, the power consumption of the lamp is reduced to approximately 1/2 of that of conventional lamps, and the lamp life is approximately 6 times longer than that of conventional lamps, thereby saving labor in replacing lamps. The transformation is measured. Also, compared to traditional traffic lights,
Since both the capacity and weight are about 1/2 or less, the size of the ball to which it is attached, the base of the pole, etc. can be made smaller and lighter. Furthermore, it is expected that the road appearance will be improved by making the traffic lights smaller.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram showing an embodiment of a road traffic signal according to the present invention, Fig. 2 is a front view of a rotating disk used in the same embodiment, and Fig. 3 is a front view of the light diffuser. . 1... Housing, 2... Light source section, 3...
...Opalescent diffuser plate, 4... Lamp, 6...
...Reflector, 6...Filter, 7...
Gear, 8... Drive motor, 9... Optical fiber, 1o... Light diffuser, 11...
...Signal control section. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

[Claims] (1) A light source section consisting of a housing, a diffusion plate, a lamp, and a reflector; a filter rotation section consisting of a rotating disk, a gear, and a drive motor; and an optical transmission system consisting of an optical fiber and a light diffuser. A road traffic signal comprising a display section and a signal control section.