Patent ID: 6133561
Filing Date: 2000-10-17
Classification: G02B

Abstract:
An electric revolver device comprising:a revolver body which retains a plurality of objective lenses;a positioning device which mechanically positions said revolver body at a predetermined rotational position;an instruction device which instructs a change-over of said plurality of objective lenses;a motor which drives and rotates said revolver body;a rotation detecting device which detects an amount of rotation of said motor;a memory device which stores data according to the amount of rotation of said motor at the time of change-over of the objective lenses in accordance with data of said plurality of objective lenses; anda drive control device which reads out the data stored in said memory device in response to the instruction of change-over from said instruction device and drives said motor until said read-out data concurs with the amount of rotation of said motor detected by said rotation detecting device.