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It literally costs pennies to fix by using a film to get amber light.
by dannyw 8y ago
It literally costs pennies to fix by using a film to get amber light.
- toomuchtodo 8y agoIs the circuitry to change LED colors significantly more expensive? That would future proof any light temperature issues.
- johnvanommen 8y agoYes. There's an interesting Wired article, about how teams at Philips struggled to come up with the optimum filter. IIRC, at some point they were using some type of gel to 'tint' the LED light to resemble an incandescent bulb. Of course, nearly all of this has probably flown out the window, because the bulbs are so cheap now. (The Wired article was from over a decade ago.)
- Black-Plaid 8y agoThat was the article about the Switch bulbs if I remember correctly. I think the company went out of business. I have a couple of them and they work and look good, but are really heavy and I can't use them in certain applications that were only ever meant to hold up really light incandescents.
- fnordfnordfnord 8y agoIt's not circuitry, it's the phosphors used to convert the light from blue to a mix of colors resulting in some form of white.
- deleted 8y ago[deleted]
- ams6110 8y agoYou can't change blue light to another color with a filter. The amber light has to be in the spectrum emitted by the lights to begin with. The filter just isolates it.
- maxerickson 8y agoA lot of "white" LEDs have a layer that absorbs some blue light and reemits it at a longer wavelength, with the mix looking white: http://www.photonstartechnology.com/learn/how_leds_produce_white_light http://www.photonstartechnology.com/learn/how_leds_produce_w... It's not a filter of course.
- ghusbands 8y agoThat's overly simplistic - you can use phosphors (and similar chemicals) to change the color of the light. The phosphors absorb light and emit light of different colors. Many daylight bulbs do this.