Why Japan Has Blue Traffic Lights Instead of Green

Re:Why Japan Has Blue Traffic Lights Instead of Green by skhr0680 on Monday October 23, 2023 @11:04AM (#37986668)

Can you tell me the location of an actual blue traffic light in Japan?

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Re:Why Japan Has Blue Traffic Lights Instead of Green by roer on Monday October 23, 2023 @11:20AM (#37986942)

I went ahead and geoguessr'd one of the images of a "blue" traffic light, and came to the following: https://maps.app.goo.gl/EjYmH34YC19y3fVt9

There is another one to the right as well. They look very blue when turned off, but cyan/green when turned on.

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Re:Why Japan Has Blue Traffic Lights Instead of Green by deadbeeves on Monday October 23, 2023 @12:43PM (#37988178)

The daylight and the contrast with the trees don't help, either.

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Re:Why Japan Has Blue Traffic Lights Instead of Green by skhr0680 on Monday October 23, 2023 @08:44PM (#37993619)

That color is common in incandescent green traffic lights around the world, not only in Japan. The idea was to use a blue-green lens to make a mostly green light when paired with a yellow lightbulb

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