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US 9,721,195 B2Granted
Spectrometry device, image forming device, and spectrometry method
AssigneeSeiko Epson Corporation
InventorTakeshi Nozawa
Life of this patent
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AssigneeSeiko Epson Corporation
InventorTakeshi Nozawa
Estimating the term…
A printer includes a spectroscope that has a variable wavelength interference filter which incidents light from a measurement region, and a light receiving section which receives light from the variable wavelength interference filter and which outputs a detection signal according to an amount of received light, a carriage moving unit which relatively moves the spectroscope along one direction with respect to a measurement target of spectrometry and moves the measurement region with respect to the measurement target, and a timing detection circuit which has a differential circuit that differentiates the detection signal and outputs a differentiation signal, wherein in a case where the measurement target is a color patch, spectrometry in which the amount of received light is detected starts based on the differential signal.
A spectrometry device comprising:
A spectrometry device, which carries out spectrometry on a measurement target, comprising:
A spectrometry method, which uses the spectrometry device including a spectroscope that has a variable wavelength interference filter which incidents light from a measurement region, and a light receiving section which receives light from the variable wavelength interference filter and which outputs a detection signal according to an amount of received light, a movement mechanism which relatively moves the spectroscope with respect to a measurement target and moves the measurement region with respect to the measurement target, and a differential circuit which differentiates the detection signal and outputs a differentiation signal, wherein spectrometry on the measurement target is carried out, the method comprising:
Dependencies are inferred from the claim text.