Vibration visualization element including optical member
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United States of America Patent
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Jun 18, 2019
Grant Date -
Nov 9, 2017
app pub date -
Jul 25, 2017
filing date -
Apr 20, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A vibration visualization element includes an optical member that retroreflects light or electromagnetic wave. The optical member includes: a fixed section, relative positional relationship of which with respect to a measurement object is fixed; and a movable section movably supported by the fixed section to allow relative positional relationship with the fixed section to be changed by application of an acceleration to the fixed section in a predetermined direction. The fixed section and the movable section are configured such that, according to the change in the relative positional relationship between the fixed section and the movable section, a reflection direction of the light or the electromagnetic wave is changed to change a luminance of reflected light in a retroreflection direction or an amount of reflected electromagnetic wave in the retroreflection direction.
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