Control for operation microscopes

Details Control for operation microscopes Control for operation microscopes

1984-06-18

1986-09-02

Wan, Gene

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

356400, G01J 120, G01B 1100

Patent

active

046098143

ABSTRACT:
An operation microscope system comprising an operation microscope including an observation optical system adapted for observing a portion of a patient wherein an operation is to be made. A mark device is provided on one of the microscope and the patient's portion and a mark position detector is provided on the other.
A control circuit is provided and has a memory for memorizing an initial position signal as produced by the detector when an initial focus condition or a visual field is established between the patient's portion and the microscope and an out-of-focus condition or a change in the visual field is detected by a relative displacement between the patient's portion and the microscope based on the initial position signal and an actual position signal as produced by the detector to produce a correcting signal to thereby restore the initial focus condition or the initial visual field.

REFERENCES:
patent: 3721827 (1973-03-01), Reinheimer

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