Stereo endoscope and stereo endoscope imaging apparatus

Details Stereo endoscope and stereo endoscope imaging apparatus Stereo endoscope and stereo endoscope imaging apparatus

1993-11-23

1996-06-04

Apley, Richard J.

Surgery

Endoscope

Having imaging and illumination means

600111, 600 1, 359377, A61B 100

Patent

active

055227899

ABSTRACT:
A stereo endoscope according to the present invention includes a pair of objective optical systems, a pair of relay optical systems, an imagery optical system having a single optical axis, and a pair of imaging devices. The imagery optical system is a zoom optical system or a varifocal optical system. For example, an encoder is used to detect a magnitude of moving lenses in the zoom optical system. Based on the detected magnitude, a control unit allows the two imaging devices to approach or depart from each other. Thus, the stereo endoscope attains the coincidence between observation points of right and left fields of view against the displacements of display points of right and left object images resulting from variations of zooming magnifications.

REFERENCES:
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patent: 4447717 (1984-05-01), Nohda
patent: 4469415 (1984-09-01), Radl
patent: 4862873 (1989-09-01), Yajima et al.
patent: 4924853 (1990-05-01), Jones, Jr. et al.
patent: 4926257 (1990-05-01), Miyazaki
patent: 5295477 (1994-03-01), Janfaza

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