Computer graphics processing and selective visual display system – Image superposition by optical means – Operator body-mounted heads-up display
Patent
1998-10-13
2000-11-07
Wu, Xiao
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
061443476
ABSTRACT:
A head-mounted image display apparatus includes optical visual units mounted on a laterally disposed shaft and adjustable so as to be movable toward and away from each other for establishing a correct eye spacing for a user. LCD display panels are mounted within the optical visual units so as to be vertically movable while ocular lenses onto which images displayed by the LCDs are projected via an obliquely arranged mirror are positionally fixed relative the eyes of the user such that focus adjustment will not cause image dropout and so that focus and eye spacing may be established independently of each other. Sliders provided for effecting focus and eye spacing adjustment are mounted such that frictional force is applied thereto for providing smooth but sure movement of the sliders so that a set position of the sliders may be reliably maintained. The sliders may be mounted via a self lubricating mounting to improve adjustment smoothness and slide characteristics.
REFERENCES:
patent: 5034809 (1991-07-01), Katoh
patent: 5276471 (1994-01-01), Yamauchi et al.
Ito Masahiko
Mizoguchi Motoshi
Kananen Ronald P.
Sony Corporation
Wu Xiao
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