Computer graphics processing and selective visual display system – Image superposition by optical means – Operator body-mounted heads-up display
Patent
1995-02-16
1997-04-15
Nguyen, Chanh
Computer graphics processing and selective visual display system
Image superposition by optical means
Operator body-mounted heads-up display
348 56, G09G 500
Patent
active
056214243
ABSTRACT:
A display apparatus, which can be mounted on the head portion of a man, includes a two-dimensional display unit for displaying an image. A projection optical system projects the image displayed on the two-dimensional display unit onto the retina of the eyeball of a user. A shutter is arranged in front of the eyeball of the user. A detector detects at least a forward inclination of motions of the head portion of the user. A control unit controls the shutter in accordance with the output from the detector to switch the shutter between a light transmission state and a light shielding state. A housing incorporates and holds the two-dimensional display unit, the projection optical system, the shutter, and the detector to be mountable on the head portion of the user.
REFERENCES:
patent: 4190856 (1980-02-01), Ricks
patent: 4241286 (1980-12-01), Gordon
patent: 4347508 (1982-08-01), Spooner
patent: 4948232 (1990-08-01), Lange
patent: 4988183 (1991-01-01), Kasahara
patent: 5281957 (1994-01-01), Schoolman
Imai Satoshi
Konuma Osamu
Mohri Koh
Okamura Toshiro
Shimada Naoto
Nguyen Chanh
Olympus Optical Co,. Ltd.
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