Information acquisition apparatus and information acquisition method
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 sensor module that receives reflected light and outputs a signal corresponding to light intensity of the reflected light; a calibration plate that outputs first reflected light to the sensor module, the first reflected light being used for comparing the light intensity of the reflected light; and a calibration unit that switches the input reflected light to the sensor module between the second reflected light reflected at a measured portion, and the first reflected light.
Claims8
An information acquisition apparatus comprising:
- a photoreceiver that receives second reflected light reflected at an object, and that outputs a signal corresponding to light intensity of the second reflected light;
- a calibrator having a stable reflectance that outputs first reflected light to the photoreceiver, the first reflected light being used for comparing the light intensity of the second reflected light;
- and
- a switcher that switches the input light to the photoreceiver between the second reflected light and the first reflected light.
An information acquisition method comprising:
- installing an information acquisition apparatus on an object;
- applying light to a calibrator built into the information acquisition apparatus, and detecting light intensity of first reflected light reflected at the calibrator;
- applying light to the object, and detecting light intensity of second reflected light reflected at the object;
- acquiring information of the object using the light intensity of the first reflected light and the light intensity of the second reflected light;
- and
- repeating the detection of light intensity of the first reflected light, the detection of light intensity of the second reflected light, and the acquisition of information of the object while the information acquisition apparatus is being installed on the object.
Dependencies are inferred from the claim text.