I´m sure someone is going to tell me why these don´t exist. Go on then.
I suppose i should give some explanation. Sodium vapour lamps are a horrible colour but are tuned to the maximum sensitivity of most people´s eyesight. I propose that there be another option, if feasible, of potassium vapour lamps, allowing violet light, either for use alone or in conjunction with other lamps to improve the colour.
-- nineteenthly, Dec 17 2008

Solid state lighting via quantum dots? http://www.american...nts.com/tecate.html
[daseva, Dec 18 2008]

//but are tuned to the maximum sensitivity of most people´s eyesight//
Really? Something with a tad more green would be more appropriate, shirley?
-- AbsintheWithoutLeave, Dec 17 2008


Yes, i expect they would, but presumably borax or whatever isn´t practical. I imagine sodium´s the nearest they can get to it. Then again, i´m looking at a convincing white light made out of coloured lights this moment and it works, so i don´t know, probably low-maintenance, power consumption or something.
-- nineteenthly, Dec 17 2008


It's got something to do with the molten and vapourised sodium coexisting peacefully with the glass enclosure it is heated in.
-- neelandan, Dec 18 2008


I was under the impression that sodium vapor lamps were supposed to not give off much glare.
-- ye_river_xiv, Dec 18 2008


Well, it appears the maximum sensitivity rests at either 565 or 560 nm. Perhaps, cadmium telluride quantum dots? <linky>
-- daseva, Dec 18 2008



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