Have you seen Purple/UV Street Lights around you?
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If it hurts, the lamps may be putting out a lot of ultraviolet. Here's a test: have something that is fluorescent orange. If it appears bright orange at night under the lamp, that's a sure sign this is an LED lamp whose internal phosphor has failed and it lets dangerous UV from the diodes out. (UV causes fluorescent materials to glow and actually emit light.)
A white light LED works like this: the LED actually puts out ultraviolet at the core. The LED converts that to white light by having a phosphor coating around the emitter to do that, they operate just like a standard fluorescent tube light. In the street lights with a manufacturing defect, the coating degrades and lets purple and UV out. And that damages eyes.
This may be topnotch Chinese LED quality here, where they are shoddy just to save a penny.
If the light hurts your eyes at night, blueblocker glasses can stop the UV. They will look clear for ordinary light but they block UV wavelengths. Might be useful for a cop on night patrol.
I am a reef keeping nerd, and know the capabilities of UV especially from LED format. Trust me bruh.....those little diodes from ALL the way 10" feet above our heads is NOT enough UV to do shit. For instance the UV in a reef tank gets dilluted by the time it hits the sand bed in most 14" aquariums. The purple especially. Thbere is t-5 bulbs tho.....these flourescent bulbs and metal halides, used to put out mega fuck tons of UV. Especially the halides. Which WERE the old street lights lol. :D:D:D:D
This is especially concerning since you really can no longer purchase indecent lights. This older technology leaked into the infrared which we tolerate well. This new technology leaks into the toxic UV band
Household LEDs are of less concern because their power levels are far lower than street lights, hence home bulbs don't degrade to leak UV as fast. Street lights run so hot that they need heat sinks for the LED arrays. When they get really hot, over time it breaks down their phosphors. Home LED bulbs not so much, at least.
Humans can't see UV but your eyes can be damaged by it.
For LEDs putting out UV, we can also see nearby wavelengths which get pumped out too, so seeing purple in this LED case means there is some UV.
A conclusive test is when dyes that are daylight fluorescent are glowing in a light source, it is putting out UV. Another test is that many washing detergents have brighteners in them, and if your shirt glows a bit bluish under a purple streetlight, that is a sign the detergent residue is reacting to UV hence there IS UV.
Yes. White light LEDs use the same principle as fluorescent tubes; all fluorescent tubes are UV emitters inside and white phosphor outside.
The white light phosphor for LEDs can vary in emitted wavelengths by using slightly different compounds plus dye filters, but all the phosphors put out narrow bands unlike tungsten incandescents; hot tungsten puts out a broad spectrum somewhat like nature sunlight which our eyes like. LEDs suck due to the narrow wavelength range output.
UV LEDs are bad for eye health and they will damage the cornea and lens. Anyone working where these are used will get cataracts earlier in life. Beware.
You actually think damaged lights begin to emit UV light?
Give me one example of your absurd statement, please. One. Single. Example.
Please.
I actually have some respect for you, so I will not give a snarky reply. Here's my background and indeed, one example:
The guy is mostly correct on the cause, degradation of the phosphor (not phosphate though). But he's wrong in that the degradation doesn't turn the LED itself to UV - that is fixed forever by quantum mechanics factors. See #3 below.
https://www.theconfessionalspodcast.com/the-blog/video-are-purple-streetlights-really-part-of-a-nefarious-black-light-surveillance-network
Interesting read, whats more interesting to me is that this subject has been brought up a few times, its the first time I remember you saying that you work for a led street lighting technology supply company.
https://www.youtube.com/watch?v=4FsPijnIOkc
Wooooooaaaa found this link from this blog, https://dontspeaknews.com/2021/08/27/it-appears-theres-much-more-to-these-new-led-purple-street-lamps-than-weve-seen-so-far/ , in the youtube video the doctor says "a nation full of zombies", sound familiar?
I might actually believe you, if this hadnt been going on since at least 2018. While this blog claims 2016, I cant find proof of that. Other than some experiments done overseas. This was a topic that came up many times over the years there in r/conspiracy..... before the sub became pure trash.
I'm okay with your inquisitive perspective, so ask away if you have questions. I do not lie nor bullshit, so it's okay to ask for documentation or verification. I am real.
I do contract engineering and have consulted at about 100 companies in a wide range of fields. This gives me an unusually broad perspective and knowledge background. I work for many companies and apply my background in physics, chemistry, electrical engineering, and computer design. I worked for NASA and aerospace companies. I'm kind of a black swan.
One company was Exclara, an LED lighting company. They made power supplies for LED street lighting. Since then I've consulted at a company that does quantum mechanics modeling for semiconductors (such as LEDs) and for chip manufacturers. So that's where I get my knowledge of factors in the purple street lights.