Optical element combination optical element and observation syst

Details Optical element combination optical element and observation syst Optical element combination optical element and observation syst

1996-06-28

2000-04-11

Epps, Georgia

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359632, 359633, G02B 2714

Patent

active

060494298

ABSTRACT:
An optical element including a first surface, a second surface, and a third surface, at least one of the first surface, the second surface, and the third surface being a curved surface, and at least one of the first surface, the second surface, and the third surface being a reflecting surface. Also included are side surfaces disposed opposite to each other, and positioning members for positioning the optical element, the positioning members being provided on the side surfaces.

REFERENCES:
patent: 5093567 (1992-03-01), Staveley
patent: 5459612 (1995-10-01), Ingleton
patent: 5483307 (1996-01-01), Anderson
patent: 5530586 (1996-06-01), Yasugaki
patent: 5539422 (1996-07-01), Heacock et al.
patent: 5543968 (1996-08-01), Freeman et al.
patent: 5663833 (1997-09-01), Nanba et al.
patent: 5714967 (1998-02-01), Okamura et al.
patent: 5739797 (1998-04-01), Karasawa et al.
patent: 5774096 (1998-06-01), Usuki et al.
S. Yamazaki, et al., "Development of Super Compact HMD With Sight Line Input," Proceedings of 3D Image Conference Jul. 6 and 7, 1995 (and translation), pp. 70-75.

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