Head-mounted type image display system

Details Head-mounted type image display system Head-mounted type image display system

1995-07-05

1999-06-29

Nguyen, Chanh

Computer graphics processing and selective visual display system

Image superposition by optical means

Operator body-mounted heads-up display

345 7, G09G 500

Patent

active

059174609

ABSTRACT:
A head-mounted type image display system includes right and left image display devices, first and second projection optical systems projecting right and left images displayed on the first and second image display devices onto right and and left eyes of a user as virtual images, a movement detection device for detecting a direction and an amount of up and down or right and left or back and forth movement of the user's head to derive a displacement signal, and a driving device responding to the displacement signal to move the first and second image display devices in a direction opposite to the detected direction of the movement of the user's head by an amount which is 0.8 times to 1.2 times of the detected amount of the movement of the user's head such that virtual images can be perceived by the user to be remained substantially stationary within the space.

REFERENCES:
patent: 5091719 (1992-02-01), Beamon, II
patent: 5093567 (1992-03-01), Staveley
patent: 5422653 (1995-06-01), Maguire, Jr.
patent: 5491492 (1996-02-01), Knapp et al.
patent: 5515070 (1996-05-01), Kawada
patent: 5539578 (1996-07-01), Togino et al.
patent: 5579026 (1996-11-01), Tabata

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