Three-dimensional image-viewing apparatus

Details Three-dimensional image-viewing apparatus Three-dimensional image-viewing apparatus

1985-11-15

1988-07-12

Corbin, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

350138, 358 88, G02B 2722, H04N 1300

Patent

active

047566019

ABSTRACT:
The described three-dimensional image viewing apparatus offers the possibility to perceive spatial objects which are reproduced through a pair of stereoscopic images as three-dimensional images, without the necessity to provide auxiliary optical means in the vicinity of the eye during viewing. For this purpose, an optical image forming system according to the basic principle of a microscope is provided between the two images (1a, 1b) of the pair of stereoscopic images and the two exit pupils (11a, 11b) for the eyes of the viewer, consisting of two fields lenses (2a, 2b) located immediately in front of the light-emitting images, two objectives (5a, 5b) a positive optical system on the eye side (9, 10) and of mirrors (3a, 3b, 4a, 4b, 8) for folding the ray paths located between the images (1a, 1b) and the positive optical system (9, 10). With such a viewing apparatus, unusually large exit pupils (11a, 11b) can be achieved, so that the viewer can move around considerably, without loosing contact with the image. Through multiple folding of the ray paths a compact construction of the device is facilitated.

REFERENCES:
patent: 2891444 (1959-05-01), Ewald
patent: 2968221 (1961-01-01), Zollner
patent: 3572893 (1971-03-01), Bennett et al.
Walker, Bruce H., "On Stereoscopic Viewers", Optical Spectra, Dec., 1970, p. 34.
Prismenbrillen Fur Stereobilder, Seite 34/ Mittwoch, Oct. 19, 1983, Nr. 243.

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