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I considered corn bulbs, but my concern was UV radiation. No one has tested the long term effects of putting these things close to your face - even a small perc
by elil17 5y ago
I considered corn bulbs, but my concern was UV radiation. No one has tested the long term effects of putting these things close to your face - even a small percent of off target emissions could end up doing damage at 30,000 lumens for an hour a day every day. Would love to see evidence that this is not something I need to worry about.
- exmadscientist 5y agoLEDs don't really emit in the UV, unless specifically designed to do it. This is a bandgap property, a fundamental part of the material the LED is made of, so it's not changing any time soon. The phosphors in white LEDs shift the line spectrum of the (usually) royal blue primary dice down, not up, so they're not going to cause trouble either. LEDs are not blackbody sources, which is actually useful here instead of annoying.
- pjerem 5y agoIf that’s a concern, it’s probably pretty easy to filter by wrapping it in some UV blocking filter.
- antattack 5y agoI think you mean blue light which is concern to eyes. White light LEDs emit very little UV[1]. [1]https://physics.stackexchange.com/questions/351539/why-does-the-led-light-colour-spectrum-spike-in-the-blue-and-green-wavelengths-b https://physics.stackexchange.com/questions/351539/why-does-...