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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)

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