Electromotive stage for microscope

Details Electromotive stage for microscope Electromotive stage for microscope

2005-07-26

2005-07-26

Joyce, William C. (Department: 3682)

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

C074S089200, C074S409000, C359S391000

Reexamination Certificate

active

06920803

ABSTRACT:
A stationary member is fixed to a microscope. A movable member holds a sample and can move in a direction perpendicular to an optical axis of the microscope. A stepping motor moves the movable member. A rotation of the stepping motor is transmitted to the movable member by a power transmitter. An origin detector detects the movable member being positioned in an origin. A control unit controls the position of the movable member based on a signal from the origin detector and the number of driving pulses of the stepping motor. A power transmitter includes a reducer having a spur gear which reduces a speed of the rotation of the stepping motor, and an urging unit which applies a rotation force to the spur gear in one direction in a movement range of the movable member.

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