Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Patent
1998-03-05
2000-10-03
Mack, Ricky
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
G02B 2714
Patent
active
061281360
ABSTRACT:
An optical system which is compact, lightweight and satisfactorily corrected for aberrations and may be suitably used as an imaging optical system or an ocular optical system for a head- or face-mounted image display apparatus which forms no intermediate image. The optical system includes an optical member (7) and a diffraction optical element (8), which are decentered with respect to each other. The optical member (7) has at least three adjacent optical surfaces, at least one of which is a curved surface. At least two reflections take place between the optical surfaces. The space between the optical surfaces is filled with a medium having a refractive index larger than 1. Light rays emitted from an image display device (6) enter the optical member (7) through a first transmitting surface (5) disposed to face the image display device (6) and are reflected by a first reflecting surface (3). The reflected light rays are reflected by a second reflecting surface (4) and led to an observer's eyeball through a second transmitting surface (3).
REFERENCES:
patent: 4026641 (1977-05-01), Bosserman et al.
patent: 4322135 (1982-03-01), Freeman
patent: 4447128 (1984-05-01), Ferrer
patent: 4859030 (1989-08-01), Rotier
patent: 5035474 (1991-07-01), Moss et al.
patent: 5050962 (1991-09-01), Monnier et al.
patent: 5459612 (1995-10-01), Ingleton
patent: 5619377 (1997-04-01), Rallison
patent: 5774268 (1998-06-01), Takahashi
Nakaoka Masaya
Togino Takayoshi
Mack Ricky
Olympus Optical Co,. Ltd.
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