Optical scanner, actuator, image display device, and head-mounted display
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Sep 20, 2016
Grant Date -
Sep 18, 2014
app pub date -
Mar 17, 2014
filing date -
Mar 18, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An optical scanner includes: a movable portion that is provided with a light reflection portion and is swingable around a first axis; a frame body portion that is swingable around a second axis; a first shaft portion that connects the movable portion and the frame body portion; a fixed portion; a second shaft portion that connects the frame body portion and the fixed portion; a strain detection element that is disposed in the second shaft portion to detect deformation of the second shaft portion; a first signal processing portion to which a detection signal of the strain detection element is input and that outputs a signal based on bending deformation of the second shaft portion; and a second signal processing portion to which a detection signal of the strain detection element is input and that outputs a signal based on torsional deformation of the second shaft portion.
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