CROSSING ALARM LAMP
PROBLEM TO BE SOLVED: To provide a crossing alarm lamp which facilitates visual confirmation of a lighting state, even when a person who passes a crossing is a red color weak person.SOLUTION: A crossing alarm lamp 100 comprises an LED substrate 130 stored in a cover 110. Each surface of the LED subs...
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Main Authors | , |
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Format | Patent |
Language | English Japanese |
Published |
02.11.2017
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide a crossing alarm lamp which facilitates visual confirmation of a lighting state, even when a person who passes a crossing is a red color weak person.SOLUTION: A crossing alarm lamp 100 comprises an LED substrate 130 stored in a cover 110. Each surface of the LED substrate 130 comprises plural LEDs 140 arranged in a circular state, as the plural LEDs 140, two kinds of LEDs (first and second LEDs) are used. The first LEDs are used for mainly, notifying a color vision healthy person (other than a person who is a red color weak person) of approach of a train, and are formed of red LEDs. The second LEDs are used for mainly, notifying a person who is a red color weak person of approach of a train, and are formed of orange LEDs which emit a light of orange color which can be visually confirmed by the red color weak person.SELECTED DRAWING: Figure 1
【課題】赤色色弱者である踏切通行者においても、点灯状態の視認が容易な踏切警報灯を提供する。【解決手段】踏切警報灯100は、カバー110内に収容されたLED基板130を備える。LED基板130の各面には、複数のLED140が円状に配置されており、複数のLED140として、2種類のLED(第一のLED及び第二のLED)が使用されている。第一のLEDは、主に色覚健常者(赤色色弱者以外の者)に対して列車の接近を知らせるためのものであって、赤色LEDによって構成される。第二のLEDは、主に赤色色弱者に対して列車の接近を知らせるためのものであって、赤色色弱者が視認可能な橙色で発光する橙色LEDによって構成される。【選択図】図1 |
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Bibliography: | Application Number: JP20160089948 |