JP7457477B2 - Lights and signal lights - Google Patents

Description

The present invention relates to a signal lamp device.

Color vision defects include type P color vision, type D color vision, type T color vision, and type A color vision, and the majority of color vision defects are type P color vision and type D color vision. It is difficult for people with P-type and D-type color vision to distinguish between red and yellow, which are used in traffic signal lights for vehicles. For this reason, a traffic light device has been proposed that allows even a person with color blindness to determine whether a red light or a yellow light is lit (Patent Document 1).

Patent No. 3947825

Most traffic lights currently installed do not have the function described in Patent Document 1. Vehicle traffic light devices have three lights that light up blue (green), yellow, and red, arranged horizontally or vertically, but the order of the three lights is stipulated in Article 3 of the Enforcement Order of the Road Traffic Act, and when arranged horizontally, the order is green, yellow, red from the left, and when arranged vertically, the order is red, yellow, green from the top. Therefore, people with color vision deficiency determine whether the red or yellow light is on by checking where the lit light is located on the traffic light device.

However, at night, even if a lit lamp can be seen, the entire signal lamp cannot be seen. For this reason, people with color blindness are unable to visually determine where the lighted lamps are located on the signal light equipment at night, and they cannot see where the lighted lamps are located. It is not possible to determine whether the light is on or the yellow light is on.

The present invention was made in consideration of the above problems, and aims to make it possible to confirm the location of a lit lamp among signal lamps, even at night.

In order to solve the above problems, a lamp device according to the present invention includes: a surface facing the light emission direction, a back surface opposite to the front surface, and a plate having a through hole penetrating from the front surface to the back surface; It has a first light emitting element inserted into the through hole that emits light of a first color, and a second light emitting element that emits light of a second color on the back side of the plate. A portion of the first light emitting element inserted into the through hole may include a transparent portion. A gap may exist between the portion of the first light emitting element inserted into the through hole and the through hole. There may be a plurality of the first light emitting elements, and the second light emitting element may be arranged between the plurality of first light emitting elements. The second light emitting element may be arranged outside a region where the first light emitting element is arranged.

Further, the lamp according to the present invention includes a first light emitting element that emits light of a first color, a cover disposed in the light emitting direction of the first light emitting element, and a second light emitting element that emits light of a second color. a second light emitting element, the cover includes a light guide plate, and the light emitted from the second light emitting element is incident on the light guide plate.

The second light emitting element may emit light when the first light emitting element is not emitting light. The second color may be different from the first color. The second color may be white. The first color may be red, yellow, or blue.

The three-lamp signal lamp according to the present invention includes the lamp according to the present invention in which the first color is red, the lamp according to the present invention in which the first color is yellow, and the lamp according to the present invention in which the first color is yellow. The lighting device according to the present invention, wherein the color is blue.

Further, the three-lamp signal lamp device according to the present invention includes a first lamp device that lights red and a predetermined color, a second lamp device that lights yellow and the predetermined color, and a second light device that lights blue and the predetermined color. a third light device that lights up a signal light device, the predetermined color is not red, yellow, or blue, and the first light device lights red. The second lamp turns on the predetermined color when not lit, the second lamp turns on the predetermined color when not turned on yellow, and the third lamp turns on blue. When not lit, the predetermined color is lit.

A one-light signal lamp according to the present invention is a single-lamp signal lamp having the lamp according to the present invention, wherein the first color is red or yellow.

Further, the single-lamp signal lamp according to the present invention includes a first lamp that lights up a first color and a second color, and a second lamp that flashes a third color. type signal lamp, the first color is red or yellow, the second color is a color different from red or yellow, and the third color is a first color. If is red, it is yellow, and if the first color is yellow, it is red, and the first lamp alternately lights the first color and the second color. .

According to the present invention, even at night, it is possible to confirm where a lit lamp device is placed in a signal lamp device.

FIG. 1 is a front view of a lamp device 100 according to an embodiment of the present invention. 2 is a cross-sectional view of the lamp 100 of FIG. 1 taken along the line AA. FIG. 3 is an enlarged view of the region B in FIG. 2; 3 is a diagram showing the arrangement of first LED elements 120 on a substrate 140. FIG. 1 is a diagram showing a three-lamp signal lamp 200 according to an embodiment of the present invention. It is a diagram showing a single-lamp type signal lamp device 300 according to an embodiment of the present invention. It is a figure which shows another example of the position of a 2nd LED. It is a figure which shows another example of the position of a 2nd LED.

<Lamp 100>
FIG. 1 is a front view of a lamp 100 according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the lamp 100 taken along the line AA, and FIG. 3 is an enlarged view of the region B in FIG. It is. The lamp device 100 includes a plurality of first LED elements 120 and a plurality of second LED elements 130 arranged in a housing 110. The first LED element 120 and the second LED element 130 are arranged on the substrate 140.

The first LED element 120 emits light of a first color, and the second LED element 130 emits light of a second color. The second color is different from the first color.

The lamp device 100 includes an antireflection plate 150 and a cover 160. The antireflection plate 150 has a front surface 151 having an antireflection function, a back surface 152, and a through hole 153 penetrating from the front surface 151 to the back surface 152. The cover 160 is placed on the surface 151 side of the antireflection plate 150, and the first LED element 120 is inserted into the through hole 153. Therefore, the light emitted from the first LED element 120 passes through the cover 160 and reaches the outside of the housing 110, as shown in FIG. The first LED elements are arranged on the substrate 140 in a circular shape, for example, as shown in FIG. 4 .

On the other hand, the second LED element 130 is arranged between the substrate 140 and the anti-reflection plate 150 so as to emit light on the back side of the anti-reflection plate 150, as shown in FIG. Generally, the LED element is transparent, and there is a gap g between the outer periphery of the first LED element 120 and the inner periphery of the through hole 153, as shown in FIG. Therefore, as shown in FIG. 2, the light emitted from the second LED element 130 passes through the gap g or the transparent part of the first LED element 120 and reaches the front side of the antireflection plate 150. reach The light emitted from the second LED element 130 reaches the front side of the anti-reflection plate 150, passes through the cover 160, and reaches the outside of the housing 110. Therefore, the lamp device 100 of this embodiment can light up the second color in addition to the first color.

In order to maximize the function of the antireflection plate 150, the gap g between the outer periphery of the first LED element 120 and the inner periphery of the through hole 153 needs to be as small as possible. For this reason, the through hole 153 is generally formed so that the gap g is as small as possible. Therefore, most of the light emitted from the second LED element 130 is blocked by the anti-reflection plate and cannot reach the outside of the casing 110. The proportion of the light that reaches the outside of the casing 110 is considerably smaller than the proportion of the light that reaches the casing 110 of the light emitted from the first LED element 120 . Therefore, outside the lamp 100, the second color light appears much darker than the first color light, and when only the second color is lit, the light emitting area of the lamp 100 is It appears to be glowing faintly. As a result, in this embodiment, it is possible to determine whether the lamp 100 is lighting the first color or the second color based on the brightness of the light emitting area of the lamp 100. It is.

<Three-lamp signal lamp 200>
FIG. 5 is a diagram showing a three-lamp type signal lamp 200 having three lamps 100 according to this embodiment. Generally, a three-lamp signal lamp has three lamps that emit blue, yellow, and red lights, and any one of the lamps is turned on (in other words, one of the lights is blue, yellow, and red). (Illuminated in different colors) to ensure traffic safety at intersections. Therefore, in the three-lamp type signal lamp 200 of this embodiment, the color (first color) of the light emitted by the first LED element 120 of the leftmost lamp 100 in FIG. The color (first color) of the light emitted by the first LED element 120 of the lamp 100 in the middle of FIG. The color (first color) is red.

In the three-lamp type signal lamp 200 of this embodiment, the colors of the light (second colors) emitted by the second LED elements 130 of these three lamps 100 are blue, yellow, and blue. They are different colors. In this embodiment, the color of the light (second color) emitted by the second LED elements of the three lamp devices 100 is preferably a color that makes it easy to distinguish between blue, yellow, and blue. The second color is preferably a color (for example, white) that makes it easy for people with color blindness to distinguish between blue, yellow, and blue.

Generally, in a signal lamp, only one of three lamps is always lit. For example, when a lamp that emits blue light is on, a lamp that emits yellow light and a lamp that emits red light are not lit. For this reason, when the area around the signal light device is dark, such as at night, you can only see the light emitting area of the lighted light device, and you cannot see where the lighted light device is placed in the signal light device. cannot be confirmed.

In the signal lamp 200 according to this embodiment, when each of the three lamps 100 is not lighting the first color (blue, yellow, red), it lights the second color (a color that is easy for a person with a discrimination disorder to distinguish between blue, yellow, and blue, for example, white). Therefore, in this embodiment, even when it is dark around the signal lamp, it is possible to see the light-emitting areas of all the lamps. Therefore, in this embodiment, even at night, a person with a discrimination disorder can confirm where the lamp that is lighting the first color (blue, yellow, red) is located on the signal lamp, and can confirm which color out of green, yellow, and red the signal lamp is lighting.

During the day, even people with color blindness can see the entire signal light device. Therefore, the second LED element 130 may be configured to emit light only at night. The determination of nighttime may be made based on the time of day or may be determined based on the brightness around the signal lamp. At this time, it may be determined that it is night between predetermined times, or it may be determined that it is night when the brightness around the signal lamp becomes less than a predetermined brightness.

The elements that emit light in the first color and the second color are not limited to LED elements. Any light emitting device may be used as long as it emits red, yellow, blue, or white (or a color that can be easily distinguished from blue, yellow, or blue by a person with a discrimination disorder).

In FIG. 5, the three lamp devices 100 are arranged horizontally, but the three lamp devices 100 may be arranged vertically. At this time, the color (first color) of the light emitted by the first LED element of the upper lamp 100 is set to red, and the color (first color) of the light emitted by the first LED element of the middle lamp 100 is set to red. The color of the light emitted by the first LED element of the lamp device 100 at the lower end is changed to blue.

<Single-light signal lamp 300>
FIG. 6 is a diagram showing a single-light signal lamp 300 in which lamps 100 are arranged on two of the four sides. FIG. 6(A) is a front view of a single-lamp type signal lamp 300, and FIG. 6(B) is a plan view of the single-lamp type signal lamp 300. Generally, a single-lamp signal lamp has two lamps that flash red and two lamps that flash yellow, and by constantly flashing these lamps, it is possible to control traffic at intersections. Safety is ensured. In single-lamp signal lights, flashing red indicates "temporarily stop at an intersection," and flashing yellow indicates "be careful at an intersection."

In the single-light signal lamp 300 of this embodiment, the lamp 100 is arranged on two opposing sides among the four sides, and the conventional lamp 310 that flashes one color is placed on the remaining two sides. do. The first color is red or yellow, and the second color is a color (for example, white) that makes it easy for a person with a discrimination disorder to distinguish between blue and yellow. If the first color is red (yellow), yellow (red) flashes.

By doing this, if the first color is red (yellow), the lamp will consist of a lamp that alternately lights up red (yellow) and the second color, and a lamp that flashes yellow (red). It becomes possible to configure a single-lamp signal lamp device. At this time, for example, if the first color is red and the second color is white, people with color blindness may be advised that in a single-lamp type signal lamp, the lamp turns on red and white alternately. Even people with color blindness can easily understand this by making it clear that when the light is flashing yellow, it indicates "stop at the intersection" and when the light is flashing yellow, it indicates "be careful at the intersection." It becomes possible to drive safely through intersections based on the lighting of light-type signal lights.

<Position of second LED element 130>
The position of the second LED element 130 is not limited to that in the above embodiment. In the present invention, the above implementation is possible by enabling the lamp device 100 to light up the second color in addition to the first color, no matter where the second LED element 130 is placed. The same effect as the form can be obtained.

For example, the cover 160 may be constituted by a light guide plate, and the second LED element may be arranged at a position where the light emitted from the cover 160 can enter the cover 160, as shown in FIG. Even in such a configuration, the lamp device 100 can light up the second color in addition to the first color.

Furthermore, in FIG. 2, the second LED element 130 is arranged between the first LED elements 120, but as shown in FIG. It may also be placed in Even in this form, the second color light is considerably darker than the first color light, making it difficult to determine whether the lamp device 100 is lighting the first color or not lighting the second color. It is possible to determine whether the lamp is present or not based on the brightness of the light emitting area of the lamp device 100.

The present invention has been described above using preferred embodiments of the present invention. Although the present invention has been described herein with reference to specific examples, various modifications and changes can be made to these examples without departing from the spirit and scope of the invention as set forth in the claims.

100 Light device 110 Housing 120 First LED element 130 Second LED element 140 Board 150 Anti-reflection plate 160 Cover 150 Anti-reflection plate 200 Three-lamp signal lamp 300 Single-lamp signal lamp

Claims (13)

a first plate having a surface facing the light emission direction, a back surface opposite to the front surface, and a through hole penetrating from the front surface to the back surface;
a first light emitting element that emits light of a first color and is inserted into the through hole;
a second plate on which the first light emitting element is arranged;
A lamp, comprising: a second light emitting element disposed between the first plate and the second plate and emitting light of a second color on the back side of the first plate. The lamp according to claim 1, wherein a portion of the first light emitting element inserted into the through hole includes a transparent portion. The lamp device according to claim 1 or 2, wherein a gap exists between a portion of the first light emitting element inserted into the through hole and the through hole. The first light emitting elements are plural,
The lamp according to any one of claims 1 to 3, wherein the second light emitting element is arranged between the plurality of first light emitting elements. The lamp according to any one of claims 1 to 3, wherein the second light emitting element is arranged outside a region where the first light emitting element is arranged. The lamp device according to any one of claims 1 to 5 , wherein the second light emitting element emits light when the first light emitting element is not emitting light. The lamp according to any one of claims 1 to 6 , wherein the second color is a different color from the first color. The lamp according to claim 7 , wherein the second color is white. The lamp according to claim 1 , wherein the first color is any one of red, yellow, and blue . The lamp according to any one of claims 1 to 8 , wherein the first color is red;
The lamp according to any one of claims 1 to 8 , wherein the first color is yellow;
A three-lamp signal lamp comprising: the lamp according to any one of claims 1 to 8 , wherein the first color is blue. A first lamp according to any one of claims 1 to 8, wherein the first color is red ;
A second lamp according to any one of claims 1 to 8, wherein the first color is yellow ;
A three-lamp signal lamp comprising: a third lamp according to any one of claims 1 to 8, wherein the first color is blue ; and
the second color is not red, yellow, or blue;
The first lamp lights the second color when the first lamp does not light the red color,
the second lamp is configured to light the second color when the yellow light is not being turned on;
The third light is a three-light signal light that lights up the second color when the blue color is not being lit. A single-lamp type signal lamp having the lamp according to any one of claims 1 to 8 ,
A single-lamp traffic light, wherein the first color is red or yellow. a first lamp ;
A single-lamp signal lamp having a second lamp that flashes a third color,
The first lamp is the lamp according to any one of claims 1 to 8,
the first color is red or yellow,
The second color is a color different from red and yellow,
The third color is yellow if the first color is red, and red if the first color is yellow,
The first lamp is a single-lamp signal lamp that alternately lights the first color and the second color.

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