JP3563574B2 - Signal light - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a signal light device for a traffic signal or the like in consideration of a color-specific person.
[0002]
[Prior art]
The colors (light colors) of traffic lights are generally called "blue", "yellow", and "red", but "blue" is an intermediate color between blue and green. I will call this "blue-green". In the past, color blindness or color blindness, which is called color blindness (scientifically called color blindness, but the word abnormal is bad, so we will call it color blindness here. For the document "Color blindness" by Kaichiro Fukami, Kanehara Publishing Co., Ltd., detailed in 1995), the colors of traffic lights such as blue (green), yellow and red differ depending on the degree of color vision specificity. It is difficult to identify the lamp color because it looks the same color, or it looks like it is extinguished despite being lit. For this reason, the color vision singular person identifies the lamp color in the daytime while observing the characteristics of the signal acquired by learning and the movement around it, but in the nighttime, the surroundings are dark and it is difficult to accurately identify the lamp color. I have.
[0003]
[Problems to be solved by the invention]
In recent years, a signal lamp using a light emitting diode (LED) has begun to appear in place of a signal lamp using a conventional incandescent lamp. However, when an LED is used, since energy is concentrated on a very narrow wavelength, a color-specific person may have difficulty in distinguishing a lamp color as compared with a signal lamp using an incandescent lamp. It is said that there are about 5% of the color vision specific persons in the population ratio, and the first color vision specific persons having low sensitivity to red, the second color vision specific persons having low sensitivity to green, and the second color vision specific persons having low sensitivity to blue. It is divided into three color vision singularities, and there is almost no third color vision singularity. Thus, the common problem is the first and second color vision singularities. For the first color vision individual, the sensitivity is remarkably low for red light having a wavelength of more than 660 nm, and red light having a wavelength of 660 nm or less may appear brown, blackish, or yellow, In addition, blue green looks yellow. To the second color vision individual, red and blue-green may look yellow. On the other hand, yellow and blue are relatively easy for the first and second color vision singers to recognize. Therefore, it is described in the above-mentioned document that, for a color vision singular person, at least by changing blue-green to blue, blue looks blue, so that it will not be mistaken. Changing the current blue-green color to blue is considered to be a reasonable idea, as it seems to be no problem for healthy people, but the chromaticity range of signal lights is an international standard, CIE (International Commission on Illumination). It is not feasible unless these standards are changed because they are determined by the National Police Agency specifications.
[0004]
Therefore, an object of the present invention is to provide a signal light device that is devised so that a color vision individual can easily determine the color and shape of the signal light device while observing current standards.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention displays a signal light such as blue (blue-green), yellow, and red by mixing colors using a plurality of light emitting diodes having different emission colors as a light source. to the all SANYO, in order to clarify the color difference, it is obtained so as to display the graphic to recognize only the color vision specific person. Thus, a normal healthy person can recognize the color as the reference, and the color vision specific person can distinguish and recognize each color.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
According to the first aspect of the present invention, there is provided a first region in which a determined color of a signal lamp is displayed by light-emitting diodes of the same color, and a color or a first region different from the first region. Comprises a plurality of light-emitting diodes that emit light of the same color and different chromaticities and saturations. The second region is the same as the first region for a healthy person. It is characterized by being arranged such that it looks like a color, and for the color vision specific person, it looks like a color different from the first area. In addition to being able to recognize, the color vision specific person recognizes that the first region and the second region are different, so that a special message can be sent only to the color vision specific person.
[0008]
The invention according to claim 2 of the present invention, in the circular first region, the graphic set arbitrarily respective signal lamp device according to claim 1, wherein the forming the second region It is a traffic light and can send a special message by graphic only to the color-specific person.
[0009]
The invention described in claim 3 of the present invention, in a circular second region, the graphic set arbitrarily respective signal lamp device according to claim 1, wherein the forming the first region It is a traffic light and can send a special message by graphic only to the color-specific person.
[0010]
(Embodiment 1)
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a signal lamp according to a first embodiment of the present invention. In FIG. 1A, a signal lamp 1 includes a blue (blue-green) lamp 3, a yellow lamp 4, and a red lamp 5 from the left side under a hood 2 a of a housing 2. As shown in FIG. 1B, the blue (blue-green) lamp 3 has blue light-emitting diodes 7 and green light-emitting diodes 8 arranged alternately and substantially uniformly inside a cover 6. The yellow light 4 has a large number of yellow light emitting diodes arranged therein, and the red light 5 has a large number of red light emitting diodes arranged therein. The signal light itself, which has a large number of light emitting diodes, is already actually used in some areas, and although it is more expensive than current signal lights, it has a uniform light emitting surface, a long life, Excellent points such as low power consumption and easy viewing without reflection by sunlight are evaluated.
[0011]
The dimensions of each part of the signal light 1 are the same as the existing signal light. The current signal light uses an incandescent light bulb as a light source and colors a front cover to display a reference color, and the color is recognized even when the light is turned off.
[0012]
Next, the operation of the present embodiment will be described. First, when the blue (blue-green) light 3 is turned on, almost the same number of blue light-emitting diodes 7 and green light-emitting diodes 8 emit light in the respective colors, so that a healthy person can recognize blue-green as a combination of blue and green. There is no difference from the current blue (blue-green) light. In addition, since the color-specific person can recognize blue as blue, it can be recognized as a blue or yellowish blue lamp. Further, when the yellow lamp 4 is turned on, the yellow light emitting diode emits light, so that a healthy person and a color vision-specific person can be recognized as a yellow lamp. When the red light 5 is turned on, the red light-emitting diode emits light, so that it is recognized as red by a healthy person, dark red, that is, reddish brown by a first color vision specific person, and yellow by a second color vision specific person. It can be recognized as a sexy red or orange light.
[0013]
As described above, according to the first embodiment, when the blue (blue-green) light 3, the yellow light 4, and the red light 5 in the signal light device 1 are turned on, the healthy person is given the current blue light. (Blue-green), yellow and red, which can be recognized by the first color vision individual as generally blue, yellow, and reddish brown, and that of the second color vision individual can be generally recognized as blue, yellow, and orange Can be.
[0014]
(Embodiment 2)
Although the first embodiment can cope with a mild color vision singular person, in the case of a relatively strong color vision singular person, blue (blue-green), yellow, and red may all appear to be the same color. The first embodiment cannot deal with this. Therefore, in the second embodiment of the present invention shown in FIG. 2, even a relatively strong color vision individual can distinguish a three-color lamp. In FIG. 2, the signal light device 11 includes a blue (blue-green) light 13, a yellow light 14, and a red light 15 from the left under a hood 12a of a housing 12, and the surface of each light device is covered with a cover. Covered. The dimensions of each part of the signal light 11 are the same as the existing signal light. The blue (blue-green) lamp 13 is a circular first light-emitting region 13a in which only blue-green light-emitting diodes are arranged, and a second light-emitting region 13a provided around the first light-emitting region 13a, in which blue light-emitting diodes and green light-emitting diodes are alternately arranged. Ru is composed of a light-emitting region 13b. The yellow light 14 includes a triangular first light emitting region 14a in which only yellow light emitting diodes are arranged, and a second light emitting region 14b provided around the first light emitting region 14a in which red light emitting diodes and green light emitting diodes are alternately arranged. Be composed. The red light 15 is a rectangular first light-emitting region 15a in which only red light-emitting diodes exceeding the wavelength of 660 nm are arranged, and is provided around the first light-emitting region 15a, in which only red light-emitting diodes having a wavelength shorter than 660 nm are arranged as much as possible. And the second light emitting region 15b.
[0015]
Next, the operation of the present embodiment will be described. First, when the blue (blue-green) lamp 13 is turned on, a blue-green light-emitting diode emits light in the first light-emitting region 13a, and approximately the same number of blue light-emitting diodes and green light-emitting diodes emit light in the second light-emitting region 13b. The user can recognize that the first light emitting region 13a and the second light emitting region 13b have the same blue-green color. On the other hand, the color-specific person recognizes the first light-emitting region 13a as yellow and recognizes the second light-emitting region 13b as blue or yellowish blue, so that a blue ring is fitted around the yellow circle. Alternatively, it can be recognized as a lamp with a yellow circle floating in a blue background.
[0016]
When the yellow lamp 14 is turned on, the yellow light emitting diode emits light in the first light emitting region 14a, and the same number of red light emitting diodes and green light emitting diodes emit light in the second light emitting region 14b. The same yellow color can be recognized in the first light emitting area 14a and the second light emitting area 14b. On the other hand, the color-specific person recognizes that the first light-emitting region 14a is yellow and the second light-emitting region 14b is dark red, that is, reddish brown, or yellowish red, that is, orange. It can be recognized as a lamp with a yellow triangle floating on it.
[0017]
When the red lamp 15 is turned on, a red light emitting diode having a wavelength exceeding 660 nm emits light in the first light emitting region 15a, and a red light emitting diode having a wavelength shorter than 660 nm emits light as much as possible in the second light emitting region 15b. , the healthy subjects Ki out that in the first light-emitting region 15a and the second light emitting region 15b recognizes that similar red, while the first color vision specific person, that the first light-emitting region 15a recognizes Since it cannot be recognized as black, the second light emitting area 15b is recognized as reddish brown, so a black square is floating in the reddish brown background, or a red brown circular center is cut off as a square lamp. Can be recognized. In addition, since the second color vision specific person recognizes the first light emitting region 15a as yellow and the second light emitting region 15b as yellow, it can be recognized as a large yellow circular lamp.
[0018]
As described above, according to the second embodiment, when the blue (blue-green) light 13, the yellow light 14, and the red light 15 in the signal light device 11 are turned on, the healthy person is given the current blue light. (Blue-green), yellow, and red, and the first color vision singularity can recognize as a circular yellow on a blue background, a triangular yellow on a red-brown background, and a square black on a red-brown background, The second color vision singular person can recognize a circular yellow on a blue background, a triangular yellow on an orange background, and a large circular yellow, respectively, and can distinguish blue-green, yellow, and red lamps by shape. .
[0019]
In the second embodiment, in the blue (blue-green) light 13, the yellow light 14, and the red light 15, the configuration of the light emitting diodes in the first light emitting region and the second light emitting region may be reversed. For example, in the blue (blue-green) lamp 13, a combination of a blue light emitting diode and a green light emitting diode may be used for the first light emitting region 13a, and only a blue green light emitting diode may be used for the second light emitting region 13b.
[0020]
In the second embodiment, the shape of each first light emitting region can be variously changed. In addition, it is desirable to consider colors, shapes, and structures as much as possible, and to select a color vision specific person that is most easily distinguished under the restrictions of standards.
[0021]
【The invention's effect】
As is clear from the above embodiment, the present invention displays colors such as blue (blue-green), yellow, and red of a signal lamp by mixing a plurality of light-emitting diodes having different emission colors as light sources. In addition, in order to make the difference in color clearer, the figure is displayed so that only the color vision specific person can recognize it. In addition to being able to recognize, the color vision specific person can distinguish and recognize each.
[Brief description of the drawings]
FIG. 1 (a) is a front view of a signal light according to Embodiment 1 of the present invention, and FIG. 2 (b) is a partially enlarged partial cross-sectional view of the signal light according to Embodiment 1 of the present invention. FIG. Front view of the signal light in Japan [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Signal light 2 Case 3 Blue (blue-green) light 4 Yellow light 5 Red light 6 Cover 7 Blue light emitting diode 8 Green light emitting diode 11 Signal light 12 Case 13 Blue (blue-green) light 14 Yellow light 15 Red light 2a, 12a Hood 13a, 14a, 15a First light emitting area 13b, 14b, 15b Second light emitting area

Claims (3)

A first region in which the determined signal lamp color is displayed by light emitting diodes of the same color, and a color different from the first region or the first region emits the same color but different chromaticity and saturation. A second region to be displayed by using a plurality of light emitting diodes, wherein the second region looks similar to the first region to a healthy person and is similar to the first region to a color vision specific person. A signal light device characterized by being arranged so that it looks different from the first region. The signal lamp according to claim 1, wherein the second area is formed in the circular first area by a figure arbitrarily set for each signal lamp. 2. The signal lamp according to claim 1, wherein the first area is formed in the circular second area by a figure arbitrarily set for each signal lamp.

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