Article View: sci.electronics
Article #3161Re: One incredibly bright projector
From: Eric Hughes
Date: Fri, 22 Sep 1989 05:36
Date: Fri, 22 Sep 1989 05:36
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In article <327@sci34hub.UUCP>, gary@sci34hub (Gary Heston) writes: >In article <86.UUL1.3#5131@mvac23.UUCP>, thomas@mvac23.UUCP (Thomas Lapp) writes: >> "...the model 28A641 is a 17-pound projector that costs $380. It is a > ... >> its own reinforced compartment. The 14-inch projection lens and > ^^ >Wonder what kind of lens material they use that keeps the weight >below 17 pounds, and will withstand the temperature from a 3Kw >Halogen bulb? Them critters put out LOTS of IR. Is 14 inches the diameter or the focal length? Eric Hughes hughes@math.berkeley.edu ucbvax!math!hughes
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!seismo!ukma!tut.cis.ohio-state.edu!ucbvax!agate!usenet From: hughes@math.berkeley.edu (Eric Hughes) Newsgroups: sci.electronics Subject: Re: One incredibly bright projector Message-ID: <1989Sep22.053634.24278@agate.berkeley.edu> Date: 22 Sep 89 05:36:34 GMT References: <86.UUL1.3#5131@mvac23.UUCP> <327@sci34hub.UUCP> Sender: usenet@agate.berkeley.edu (USENET Administrator;;;;ZU44) Reply-To: hughes@math.berkeley.edu (Eric Hughes) Organization: UC Berkeley Math Dept Lines: 14 In-reply-to: gary@sci34hub.UUCP (Gary Heston)