Ocular optics system having at least four reflections occurring

Details Ocular optics system having at least four reflections occurring Ocular optics system having at least four reflections occurring

1997-01-17

1998-08-04

Epps, Georgia Y.

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359631, 359633, G02B 2714

Patent

active

057903115

ABSTRACT:
The invention relates to an ocular optics system which forms no intermediate image, is reduced in terms of size and weight with well-corrected aberrations, and is best suited for use on face- or head-mounted image display devices, and provides an ocular optics system 7 comprising three juxtaposed optical surfaces 3, 4 and 5, wherein a space defined by three optical surfaces 3, 4 and 5 is filled with a transparent medium having a refractive index greater than 1, at least two optical surfaces 3 and 4 of these three optical surfaces are defined by curved surfaces concave on a pupil position side of the optics system, and at least four reflections occur between curved surfaces 3 and 4.

REFERENCES:
patent: 4026641 (1977-05-01), Bosserman et al.
patent: 5157549 (1992-10-01), Suzuki et al.
patent: 5249081 (1993-09-01), Rogers
patent: 5329158 (1994-07-01), Tosaki
patent: 5429612 (1995-07-01), Ingleton
patent: 5453877 (1995-09-01), Gerbe et al.
patent: 5506728 (1996-04-01), Edwards et al.

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