Information acquisition apparatus
AssigneeSeiko Epson Corporation
InventorsHideto ISHIGURO, Tsukasa EGUCHI, Hitoshi TSUCHIYA, Megumu ITO
Life of this patent
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Abstract
A component measurement apparatus includes: a first unit including a sensor module that receives first reflected light reflected at a measured portion, and that outputs a signal corresponding to light intensity of the first reflected light; and a second unit separately provided from the first unit, the second unit including a calibration plate that has a stable reflectance and that outputs second reflected light to the sensor module, the second reflected light being used for comparing the light intensity of the first reflected light.
Claims8
An information acquisition apparatus comprising:
- a first unit including a photoreceiver that receives first reflected light reflected at an object, and that outputs a signal corresponding to light intensity of the first reflected light;
- and
- a second unit separately provided from the first unit, the second unit including a calibrator that has a stable reflectance and that outputs second reflected light to the photoreceiver, the second reflected light being used for comparing the light intensity of the first reflected light.
Dependencies are inferred from the claim text.