Optical apparatus

Details Optical apparatus Optical apparatus

2006-10-03

2006-10-03

Ben, Loha (Department: 2873)

Optical: systems and elements

Lens

With support

C359S696000, C359S697000, C396S087000, C396S091000, C396S093000, C396S095000, C396S131000, C396S134000, C396S135000

Reexamination Certificate

active

07116502

ABSTRACT:
An optical apparatus is disclosed which can control a position of a driven member with precision using a simple control algorithm. The optical apparatus includes an actuator, a driven member, a transmission mechanism for transmitting a driving force from the actuator to the driven member, a first detector for detecting driving of the actuator and for outputting a signal corresponding to a detection result, a second detector for detecting driving of the driven member and for outputting a signal corresponding to a detection result, and a controller for controlling the actuator, wherein the controller determines, after activating the actuator, one of the first and second detectors which the one outputs a signal corresponding to a predetermined driving amount earlier, and controls the actuator based on the signal from the one that has been determined.

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patent: 2001-83397 (2001-03-01), None
patent: 2001-83397 (2001-03-01), None

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