Optical apparatus and a method of recording or instantaneously v

Details Optical apparatus and a method of recording or instantaneously v Optical apparatus and a method of recording or instantaneously v

1983-01-18

1986-11-11

Corbin, John K.

350167, 354112, 354115, G02B 2722, G03B 3500, G03C 908

Patent

active

046218971

ABSTRACT:
This invention relates to an optical apparatus for and a method of recording or instantaneously visualizing enlarged stereoscopic images of objects.
The apparatus comprises a stationary stopped down lens (1, 4) providing an enlarged image of an object (2), a first lenticular grating (3), the elementary lenses of which are positioned in the vicinity of said enlarged image, the angle of field of the lenticular grating (3) is substantially equal to the aperture angle (4') of the exit pupil of the lens viewed from the lenticular grating (3), in order to provide an instantaneous, composite, sampled image at the level of the focal plane of the first lenticular grating.
According to one embodiment for instantaneous observation, the apparatus also comprises a relief reversing system (9), an observation system (10) and a beam expanding system (11).

REFERENCES:
patent: 3535993 (1970-10-01), Jones
patent: 3737229 (1973-06-01), Jones
patent: 4078854 (1978-03-01), Yano

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