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  United States Patent
Optical path extender for compact imaging display systems

Patent Number: 5,777,795
Date of Patent: 7 July 1998
Inventors: Colucci; D'Nardo (Durham, NC)
Assignee: University of North Carolina (Chapel Hill, NC)
Appl. No.: 08/814,802
Filed: March 10, 1997
Int. Cl.: G02B 27/01 (20060101); G02B 27/28 (20060101); H04N 9/12 (20060101); H04N 9/30 (20060101); G02F 1/13 (20060101); G02B 27/00 (20060101); G02B 5/30 (20060101); G02F 1/1335 (20060101); G02B 027/14
U.S. Cl.: 359/633 ; 348/E9.024; 359/732
13 Claims

Abstract
A compact image display system in which the optical pathway is folded and thereby extended between the image source and the imaging optics of the system. The image display system may be used in place of computer or television screens, and may further be affixed to a frame so that it is wearable by a human user as either a monocular or binocular device.

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