发明名称 |
SPECTRAL IMAGE ACQUIRING APPARATUS |
摘要 |
A spectral image acquiring apparatus includes an optical filter on which light is incident; an image sensor including a two-dimensionally disposed pixel array for detecting the light via the optical filter; and a signal processing unit generating a difference-value image based on a detection signal from the image sensor. The optical filter includes a diffraction grating having a lattice pattern corresponding to one or more pixels on the image sensor. The signal processing unit calculates a difference value in an amount of received light between two adjacent pixels based on the detection signal from the image sensor, and generates the difference-value image based on the difference value. The difference value between the two adjacent pixels is varied depending on a difference in an interference point on the image sensor corresponding to a diffraction angle of the light that has passed through the diffraction grating.
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申请公布号 |
US2012105843(A1) |
申请公布日期 |
2012.05.03 |
申请号 |
US201113275572 |
申请日期 |
2011.10.18 |
申请人 |
HIRAI HIDEAKI;KOBAYASHI MASANORI |
发明人 |
HIRAI HIDEAKI;KOBAYASHI MASANORI |
分类号 |
G01J3/40 |
主分类号 |
G01J3/40 |
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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