The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2013
Filed:
Nov. 30, 2010
Hisato Sekine, Yokohama, JP;
Hisato Sekine, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A calibration apparatus associates a pixel position and a wavelength of a spectrometer sensor. In calibrating the sensor, the calibration apparatus searches for a first pixel value corresponding to a bright line spectrum of incident light by a first search method based on the pixel value corresponding to the incident light acquired by the sensor and searches for a second pixel value corresponding to the bright line spectrum of the incident light by a second search method based on the pixel value corresponding to the incident light acquired by the sensor. The calibration apparatus associates either one of a first pixel position and a second pixel position with the wavelength of the bright line spectrum of the incident light. The calibration apparatus can appropriately acquire a correspondence relation between a detection position and a wavelength even if the correspondence relation has varied due to aging or changes in the temperature.