Driving device for a revolver in a microscope

Details Driving device for a revolver in a microscope Driving device for a revolver in a microscope

1983-04-12

1984-12-04

Henry, Jon W.

Electricity: motive power systems

Motor-reversing

Armature or primary circuit control

350254, 318477, G02B 716, H02P 308

Patent

active

044860781

ABSTRACT:
A microscope provided with a revolver having objective lenses mounted thereon and rotatable to move the objective lenses into an observation optical path comprises means for varying the load torque for rotation of the revolver at the rotated position of the revolver when the objective lenses face a predetermined position in the observation optical path, an electric motor, circuit means for driving the electric motor, means for transmitting the rotation of the electric motor to the revolver, and means for detecting the fluctuation of the load of the electric motor caused by a variation in the rotational torque of the revolver, and means for acting on the circuit means to stop the rotation of the electric motor in response to the detecting means.

REFERENCES:
patent: 4166239 (1979-08-01), Nakatani
patent: 4266855 (1981-05-01), Mohr
patent: 4307940 (1981-12-01), Hagedorn-Olsen

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