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There's another aspect to this development. One benefit of incandescent lamps vs. CFL or LED is superior CRI (color rendering index). CFL/LED lamps produce ou
by jrapdx3 11y ago
There's another aspect to this development. One benefit of incandescent lamps vs. CFL or LED is superior CRI (color rendering index).
CFL/LED lamps produce output having a discontinuous spectrum, fluorescents with prominent green and LEDs blue emission. Consequently these light sources can be much less desirable where accurate color rendering is important, for example critical color matching, art galleries/museums, etc.
I've found it difficult to replace continuous spectrum sources with LED lights in particular. The latter are much more energy efficient and have greater useful life span, but unsuited to photography, etc., where quality of color rendering is crucial.
Quite likely there's a large enough market for improved incandescent lamps to warrant further development.
- pcunite 11y agoAgreed, and thanks for bringing this up. This is why Tungsten and HMI lighting is still a thing. Remote phosphor lights from Cineo are supposed to address this, however. But this would not be used in a residential setting, more for commercial lighting situations.
- dognotdog 11y agoHow does remote phosphor help with color rendition? After all, white LEDs also use blue light + phosphor, so how do the remoteness help?
- jrapdx3 11y agoIndeed, the Cineo lights claim high CRI values. Per their website, the lights are intended for cinematography and similar applications. I surmise they wouldn't be used in homes or commercial spaces, at least that would be rare. The lighting systems are quite expensive, especially the bigger units. Not yet seen CRI info for more ordinary incandescent replacement lamps, but potentially they could begin to approximate the traditional light emitters especially at lower color temps, <3000K.