Operation microscope including eyepiece tube rotary angle drive

Details Operation microscope including eyepiece tube rotary angle drive Operation microscope including eyepiece tube rotary angle drive

1990-08-17

1991-12-24

Henry, Jon W.

Optical: systems and elements

Compound lens system

Microscope

359368, G02B 2100, G02B 2120

Patent

active

050746510

ABSTRACT:
An operation microscope includes a tube attached to its support so as to be turned up or down with respect to an operation objective. An eyepiece tube is attached to the tube so as to change its position in a direction with respect to this adjustment. A turning up and down angle detection device detects an angle for the tube. An eyepiece tube drive device changes the rotary angle of the eyepiece tube. A control device uses detection results of the turning up and down angle detection device and, based on the detection results, the eyepiece tube drive device is controlled to return the eyepiece tube to its original position. By this construction, when the tube is in the turning up or down state at a given angle with respect to an operation objective, the angle detection device detects the tube's turning up or down angle and thereby outputs the detection results. The control device then, based on the detection results from the angle detection device, controls the eyepiece drive device to return the eyepiece tube to its original position according to the adjusting angle. Therefore, an operator is always able to make the observation at the optimal position.

REFERENCES:
patent: 3809454 (1974-05-01), Brambring
patent: 4576450 (1986-03-01), Westphal
patent: 4798451 (1989-01-01), Fujiwara
patent: 4867405 (1989-09-01), Nakamura
patent: 4881709 (1989-11-01), Nakamura

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