Article View: sci.electronics
Article #19887Re: Looking for Blue LEDs
From: Frank Wells
Date: Wed, 05 Oct 1988 21:07
Date: Wed, 05 Oct 1988 21:07
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In article <870@dlhpedg.co.uk> cl@datlog.co.uk (Charles Lambert) writes: >In article <871@ritcv.UUCP> cep4478@ritcv.UUCP (Christopher E. Piggott) writes: >>Question: why are R.G.B. monitors Red, GREEN, blue, when GREEN is not one of >>the primary colors (being a combination of blue and yellow)? >I just know there'll be a hundred optical physicists leaping to answer that >one, so I'll skip over it and ask a corollary. >I guess that a yellow LED is really a red and a green LED in the same capsule: >correct? Somebody's probably already said it, but the primary PIGMENTS are Red, Yellow, Blue (as opposed to COLORS, tints if you will.). An LED, on the other hand electrically excites the diode material to produce the yellow color. You could have a yellow gun in a monitor, but you'd have trouble getting all the colors right. Hope this helps. Frank Wells
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!helios!scs!spl1!wheaton!fwells From: fwells@wheaton.UUCP (Frank Wells) Newsgroups: sci.electronics,rec.audio Subject: Re: Looking for Blue LEDs Message-ID: <795@wheaton.UUCP> Date: 5 Oct 88 21:07:21 GMT References: <1138@nmtsun.nmt.edu> <862@ritcv.UUCP> <255@rna.UUCP> <4422@lynx.UUCP> <871@ritcv.UUCP> <870@dlhpedg.co.uk> Reply-To: fwells@wheaton.UUCP (Frank Wells) Distribution: rec.audio,sci.electronics Organization: Wheaton College, Il Lines: 19