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View Full Version : A different approach (perhaps old) to projection!!!



Prof Bill
05-11-2010, 05:40 AM
This was brought to my attention today as "another something interesting"!
It reminds me of some of the several attempts that were made several years ago to enhance screen size from a single high intensity projector.
It is worth a quick look just for curiosity value!

Enjoy,

Bill.

http://cgi.ebay.co.uk/150-Inch-Big-Screen-Movie-Theater-TV-Projection-Lense-/350351867041?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item5192993ca1

Matt Olieman
05-11-2010, 09:42 AM
This was brought to my attention today as "another something interesting"!
It reminds me of some of the several attempts that were made several years ago to enhance screen size from a single high intensity projector.
It is worth a quick look just for curiosity value!

Enjoy,

Bill.

http://cgi.ebay.co.uk/150-Inch-Big-Screen-Movie-Theater-TV-Projection-Lense-/350351867041?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item5192993ca1

Good idea Bill but bad results. This is an old method that was used in the early 80's, projecting from a CRT (TV) to a metallic screen. Problem is, when using a small monitor to project (even a LCD), the pixels are very noticeable on the large screen. Therefor the graphics become less defined.