Image display apparatus

Details Image display apparatus Image display apparatus

1996-09-25

1998-07-07

Epps, Georgia Y.

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359630, 359631, 359633, 345 7, G02B 2714, G09G 500

Patent

active

057777942

ABSTRACT:
A compact and lightweight head- or face-mounted image display apparatus in which curvature of field is reduced to improve visibility without using a relay optical system or a prism. The image display apparatus has an image display device (1) and an optical system for leading an image displayed by the image display device (1) to an observer's eyeball (5) without effecting image formation on the way to the observer's eyeball (5). The image display device (1) and the optical system are retained on an observer's head or face by a retaining device. Light rays from the image display device (1) are reflected by a semitransparent surface (2) and then reflected by a reflecting surface (4) of a back-coated mirror (3). Thereafter, the light rays pass through the semitransparent surface (2) to enter the observer's pupil (5).

REFERENCES:
patent: 4269476 (1981-05-01), Gauthier et al.
patent: 4805988 (1989-02-01), Dones
patent: 4808978 (1989-02-01), Vernay
patent: 4961625 (1990-10-01), Wood et al.
patent: 5034809 (1991-07-01), Katoh
patent: 5546227 (1996-08-01), Yasugaki et al.
patent: 5596433 (1997-01-01), Konuma

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