Spectrometer
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United States of America Patent
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Sep 1, 2015
Grant Date -
Sep 11, 2014
app pub date -
Mar 4, 2014
filing date -
Mar 7, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A spectrometer includes: a wavelength-variable interference filter that can change a wavelength of selected light and disperses light from a measurement target; an imaging unit that receives light components with a plurality of wavelengths which are dispersed by the wavelength-variable interference filter and acquires a plurality of spectral images; a positional deviation amount detection unit that selects a standard image from the plurality of spectral images acquired by the imaging unit and detects a positional deviation amount of a pixel position which receives light from a predetermined position of the measurement target between the standard image and at least one of the spectral images other than the standard image; and a position correction unit that positions the spectral images other than the standard image on the basis of the detected positional deviation amount.
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