Article View: sci.electronics
Article #19753Re: Looking for Blue LEDs
From: Joseph Nathan Hall
Date: Fri, 23 Sep 1988 12:02
Date: Fri, 23 Sep 1988 12:02
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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)? Why shouldn't >it be red, YELLOW, blue? Well, because then you can't get green. > >Projection televisions work the same way ... is it possible to emit green, >and blue 180 degrees out of phase with the blue component of the green, to >cancel out the blue and the green and make yellow? No. If not, how do you make >yellow? > Red + green. Red + blue = magenta, green + blue = cyan (light blue.) (Really!) Sheesh. -- v v sssss|| joseph hall || 201-1D Hampton Lee Court v v s s || jnh@ece-csc.ncsu.edu (Internet) || Cary, NC 27511 v sss || the opinions expressed herein are not necessarily those of my -----------|| employer, north carolina state university . . . . . . . . . . .
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arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!uflorida!gatech!ncsuvx!ece-csc!jnhReferences:
<1138@nmtsun.nmt.edu> <862@ritcv.UUCP> <255@rna.UUCP> <4422@lynx.UUCP> <871@ritcv.UUCP>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!uflorida!gatech!ncsuvx!ece-csc!jnh From: jnh@ece-csc.UUCP (Joseph Nathan Hall) Newsgroups: sci.electronics,rec.audio Subject: Re: Looking for Blue LEDs Keywords: blue blue blue, not yellow or red or green Message-ID: <3781@ece-csc.UUCP> Date: 23 Sep 88 12:02:02 GMT References: <1138@nmtsun.nmt.edu> <862@ritcv.UUCP> <255@rna.UUCP> <4422@lynx.UUCP> <871@ritcv.UUCP> Reply-To: jnh@ece-csc.UUCP (Joseph Nathan Hall) Organization: North Carolina State University, Raleigh, NC Lines: 23