posted 11-29-2004 04:07 PM                       

Even if you go through all the trouble, the very poor contrast ratio (lots of flare) is obvious from the picture. Even if it works, who would really want to watch it?

The idea of an LCD panel on an overhead projector has been around for years, and you could probably find old units sitting unused on shelves:

http://sd23.bc.ca/mec/presentationtech.html

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COM-EQ-0090 consists of 2 parts: an InFocus colour LCD panel and an Elmo high-output overhead projector. The unit is designed with work with DOS/Windows computers but comes with adapters for Macintosh. The LCD will project 262,144 colours at 640x480. The image is reasonably bright and quite effective in a partially darkened room. It can be tricky to re-drive older Mac monitors from this system. Advantages: colour.

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At SMUG we will soon be able to use the Kodak Datashow, a unit which
sits on an overhead projector and produces a black-and-white Mac screen
image on a projection screen. Kodak again showed this unit, which seems
to be the best of this type of device. (Of similar units shown by other
companies one year ago, only one is apparently still in production.)
Kodak has also announced a three-color projector. This is a complete
unit, about half the size of a carousel slide projector, which projects
a full-color image of the Mac II screen and which is suitable for use
in smaller rooms.

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posted 11-29-2004 06:41 PM                   

quote: Brad Miller

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I had seen the television sets with the big magnifying glass in front of them back in the 80s advertised (which would clearly look like crap), but I had never heard of this before. Oh well, just thought it was an interesting idea for those on a low budget that wanted video projection at home. (Surely light baffles could be devised to cut down on the contrast killers.)

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