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Spectrum of a cool daylight LEDs from my emergency lantern

Spectrum of a cool daylight LEDs from my emergency lantern

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As you can see, the spectrum is rich in blue and isn't uniform, what can cause health damages in the long terms.

IMG_2784 resized.jpg IMG_2747_resized.jpg IMG_2614_resized.jpg IMG_2465.JPG

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Album name:dor123 / Spectra of light sources with my discs
Keywords:Miscellaneous
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Date added:Jan 11, 2017
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Date Time:2017:01:11 15:42:22
DateTime Original:2017:01:11 15:40:34
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Prismatic
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Jan 11, 2017 at 11:29 AM Author: Prismatic
But the spectrum of a fluorescent lamp is much worse as there are only parts in the whole spectrum.

Prismatic@YouTube:

http://www.youtube.com/slprismatic

wattMaster
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Jan 11, 2017 at 11:34 AM Author: wattMaster
The problem with most LEDs is the big blast of blue.

Where are daylight fluorescents when you need them?

Prismatic
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Jan 11, 2017 at 11:38 AM Author: Prismatic
I always thought this is also true and worse for fluorescent lamps.

here compared to daylight there is a huge blue spike:
http://ww1.prweb.com/prfiles/2013/06/17/10840002/Daylight-Fluorescent-vs-Nat.jpg

Prismatic@YouTube:

http://www.youtube.com/slprismatic

dor123
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Jan 11, 2017 at 12:03 PM Author: dor123
The peaks at the spectrum of halophosphors are mercury lines. they aren't as intense as the blue peak of the blue LED.

I"m don't speak english well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I'm antiLED and hope that the LED lighting will be phased out in favor of old lighting technologies soon.

merc
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Adam


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Jan 11, 2017 at 12:04 PM Author: merc
People believe in various things. For example - when I was a kid, there was a superstition that fluorescents can cause baldness.
More recently there was a rumour that cell phones cause brain cancer.

Maybe it's time to start a company making anti-LED glasses. Actually they already sell them because of LED backlit screens.
Personally, I don't find differences in using CCFL and LED backlit screens - I use both of them interchangeably for some years and don't find a difference in the eye strain, sleep quality etc. CRT screens were much worse, especially at 70Hz and lower refresh rates.

@Prismatic: The link says it all.

Not a misoLEDist...

wattMaster
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Jan 11, 2017 at 12:35 PM Author: wattMaster
I prefer CCFL screens.

Where are daylight fluorescents when you need them?

merc
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Jan 11, 2017 at 01:07 PM Author: merc

I prefer CCFL screens.

Have you ever used a decent IPS display?

Not a misoLEDist...

dor123
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Jan 11, 2017 at 01:19 PM Author: dor123
The color gumat of LED backlit LCD, would be worser than that of CCFL backlit LCD with the same panel, as generally the spectrum of CCFL have 5 peaks, in which three of them are RGB. The spectrum above isn't suitable for LCD display at all, since because of the boardband emission of the phosphor, only the blue channel would be vivid, while the red and the green would suffer from color bleeding.
CRT usually have higher color gumat than LCD, since the pixels produces the light by themselves.

I"m don't speak english well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I'm antiLED and hope that the LED lighting will be phased out in favor of old lighting technologies soon.

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