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Author Topic: Blue screens put out lots of UV  (Read 1165 times)

John Lackner

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Blue screens put out lots of UV
« on: October 31, 2020, 08:46:03 pm »

Blue computer screens can put out a lot of UV light, which can be fatiguing to the eyes. Maybe change the theme color to some thing amber or yellow-ish? Just a suggestion.
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Keith Broughton

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Re: Blue screens put out lots of UV
« Reply #1 on: November 01, 2020, 07:13:41 am »

Blue computer screens can put out a lot of UV light, which can be fatiguing to the eyes. Maybe change the theme color to some thing amber or yellow-ish? Just a suggestion.
While there can be a lot of light in the blue spectrum, and it can have some effect on eye strain, "a lot of UV light" from monitors  seems VERY unlikely.
The skin care industry is trying to float the idea that computer screen face time is causing pre mature ageing of the skin. I wonder if they have a solution to sell for that "problem"? ::)

https://www.techwalla.com/articles/do-computer-screens-emit-uv-light
https://www.allaboutvision.com/en-ca/digital-eye-strain/blue-light/



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John Roberts {JR}

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Re: Blue screens put out lots of UV
« Reply #2 on: November 01, 2020, 08:46:31 am »

Blue computer screens can put out a lot of UV light, which can be fatiguing to the eyes. Maybe change the theme color to some thing amber or yellow-ish? Just a suggestion.
UV is shorter wavelength and higher energy than visible blue light, if there was a lot of it released by accident, it would be a health hazard. Unlikely that this would be missed by regulators.

Blue (violet) is shorter wavelength than the other light colors so higher energy content. This shorter wavelength light is associated with our sunlight alerting mechanism that helps wake us up in the morning.

JR
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Keith Broughton

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Re: Blue screens put out lots of UV
« Reply #3 on: November 02, 2020, 08:39:11 am »

As far as suggestions, there are some devices that have an setting for evening or night use that reduces the colour temperature, thereby reducing blue light energy.
The concept is that blue light disrupts sleep so using a screen before bed can be problematic.
Also, you can go into the video driver software and reduce the colour temperature to decrease blue light.
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Geert Friedhof

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Re: Blue screens put out lots of UV
« Reply #4 on: November 02, 2020, 10:09:00 am »

Blue computer screens can put out a lot of UV light, which can be fatiguing to the eyes. Maybe change the theme color to some thing amber or yellow-ish? Just a suggestion.

Yep, and 5G kills and the earth is flat.
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Brian Jojade

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Re: Blue screens put out lots of UV
« Reply #5 on: November 02, 2020, 02:29:35 pm »

Well, if you run a VGA connection, just disconnect pin 3.  This will eliminate all blue signal, and you should be safe from those nasty blue waves...
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John Roberts {JR}

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Re: Blue screens put out lots of UV
« Reply #6 on: November 26, 2020, 07:29:49 pm »

Apparently this myth was in full effect during the filming of Mell Brooks "spaceballs".... They outfitted the talent with tinted sunglasses to protect them from the huge blue screen.

JR
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Daniel Levi

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Re: Blue screens put out lots of UV
« Reply #7 on: November 27, 2020, 04:20:32 am »

Yes, from what I understand that this blue light is exactly that, blue light and it can supposedly keep you awake/affect sleep if exposed to too much of it shortly before going to bed, that's why OS's like W10 have a "Night Light" mode which can be enabled manually or automatically to reduce the amount of blue light being emitted form the computer screen, this will make the screen have a red tinge.
Whether it works or not I don't know but it does seem easier on the eye in low light conditions.
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Re: Blue screens put out lots of UV
« Reply #7 on: November 27, 2020, 04:20:32 am »


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