Stereo microscope and stereo changer

Details Stereo microscope and stereo changer Stereo microscope and stereo changer

1988-10-20

1989-06-13

Henry, Jon W.

350130, 350145, 350287, G02B 2122, G02B 2722

Patent

active

048386715

ABSTRACT:
Behind of the front objective, in the region of both parallel axes of the beams of rays of the microscope is disposed a slewable optical prismatic body with two plane parallel front faces and two opposite inclined, parallel refractive pairs of faces. In a basis position of this prismatic body, the path of the axes of the beams of rays remains uninfluenced by the plane parallel front faces of the optical prismatic body. In a position of the optical body pivoted by 90.degree., the beams of rays pass through the inclined refractive faces and they experience a transverse displacement. In accordance with the position of the prismatic body one may obtain therefore a greater or smaller stereoscopic angle .alpha.. This leads to significantly improved viewing possibilities, more particularly for eye examination.

REFERENCES:
patent: 2406526 (1946-08-01), Bennett et al.
patent: 3173984 (1965-03-01), Vogl
patent: 4009526 (1977-03-01), Abe et al.
patent: 4674845 (1987-06-01), Matsumura

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