Spectral sensor for printed images

A spectral characteristic acquiring apparatus (10) is provided which includes: an area dividing part; a spectrum separating part; a light receiving part (16); and a calculating part (17), wherein the calculating part includes a transformation matrix storing part (17a) that stores a transformation ma...

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Bibliographische Detailangaben
Hauptverfasser:	Shimbo, Kohei, Seo, Manabu, Kamijo, Naohiro, Kubota, Yoichi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CINEMATOGRAPHY COLORIMETRY CORRECTION OF TYPOGRAPHICAL ERRORS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LINING MACHINES MAGNETOGRAPHY MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRINTING RADIATION PYROMETRY SELECTIVE PRINTING MECHANISMS STAMPS TESTING TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A spectral characteristic acquiring apparatus (10) is provided which includes: an area dividing part; a spectrum separating part; a light receiving part (16); and a calculating part (17), wherein the calculating part includes a transformation matrix storing part (17a) that stores a transformation matrix used for calculating the spectral characteristic corresponding to electrical signals of a first diffraction pattern group including two or more adjacent diffraction patterns, and a spectral characteristic calculating part (17b) that calculates, based on the electrical signals of the first diffraction pattern group and the corresponding transformation matrix, the spectral characteristic at the locations of the image carrying medium corresponding to the apertures of the first diffraction pattern group.