发明名称 |
Spectral characteristic acquisition device, image evaluation device, and image formation apparatus |
摘要 |
A spectral characteristic acquisition device includes a light irradiation part configured to irradiate an object with light, a diffraction part configured to diffract light reflected from the object to provide diffracted light, a light-receiving part configured to receive the diffracted light and output a signal based on an amount of the diffracted light, a calibration color index configured to include a color with a known spectral characteristic, and an operation part configured to calculate a spectral characteristic of the object from a signal output from the light-receiving part by using a predetermined transformation matrix and calibrate the transformation matrix by using the calibration color index. |
申请公布号 |
EP2916116(A1) |
申请公布日期 |
2015.09.09 |
申请号 |
EP20150154809 |
申请日期 |
2015.02.12 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
KUBOTA, YOICHI;SHIMBO, KOHEI;KAMIJO, NAOHIRO |
分类号 |
G01J3/28;G01J3/52;G01N21/27;H04N1/407;H04N1/60 |
主分类号 |
G01J3/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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