Optical apparatus such as a camera

Details Optical apparatus such as a camera Optical apparatus such as a camera

1997-01-24

2000-04-18

Perkey, W. B.

Photography

Eye tracking

396177, 396386, G03B 1308, G03B 1503

Patent

active

060525339

ABSTRACT:
An optical apparatus is provided with an eyepiece, a focusing screen onto which an image is projected, a reflecting device for reflecting the light from the focusing screen to thereby cause it to enter the eyepiece in order to show the image, an illuminating device for illuminating an eye, an imaging optical system for receiving the light from the eye through the eyepiece and a certain portion of the reflecting device, and forming the image of the eye by the light from the eye, and a photoelectric converter for receiving the image of the eye. The reflecting device comprises a hollow optical part, and the light from the eye passes through the hollow portion and the mirror portion of the optical part.

REFERENCES:
patent: 3936849 (1976-02-01), Tsujimoto
patent: 4289392 (1981-09-01), Kobori et al.
patent: 5041854 (1991-08-01), Kirigaya
patent: 5245374 (1993-09-01), Hosokawa et al.
patent: 5260734 (1993-11-01), Shindo
patent: 5485241 (1996-01-01), Irie et al.

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