Optical viewer with adjustable angular convergence

Details Optical viewer with adjustable angular convergence Optical viewer with adjustable angular convergence

Filed on

1977-06-16

Date issued

1979-11-20

Examiner

Corbin, John K.

Other Related Categories

350139, 350145, G02B 2722

Type

Patent

Status

active

Patent number

041748840

Description

ABSTRACT:
The invention relates to viewers intended for the observation of visual pictures.
In order to cause the angular convergence of visual radii to vary, at the level of an observer's eyes (G) and (D), when viewing pictures (1) and (1'), two pairs of prisms (2) and (2'), (3) and (3') are interposed on the optical paths, the first pair being in part reflective and transparent, thus creating a common beam (7) (7'), where a single converging lens (8) makes it possible, by displacement of its optical center (C), along the directions (17), to vary the angular observation convergence.
Applications consist, in particular, in examining stereoscopic images.

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