DISPLACEMENT SENSOR, AND DISPLACEMENT MEASUREMENT SYSTEM USING DISPLACEMENT SENSOR
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United States of America Patent
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Jan 18, 2024
app pub date -
Sep 26, 2023
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Apr 14, 2021
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Abstract
A displacement sensor includes a first emission particles layer provided to be contactable with a measurement object, and in which first emission particles that emit light at a first wavelength by excitation energy are distributed over at least a one-dimensional extent, a second emission particles layer in which second emission particles that emit light at a second wavelength different from the first wavelength by the excitation energy are distributed over the above one-dimensional extent, and a spacer layer that separates the first emission particles layer and the second emission particles layer in a direction intersecting the above one-dimensional extent, and which includes an excitation energy absorbent that absorbs the excitation energy.
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