发明名称 |
Gradient color filters for sub-diffraction limit sensors |
摘要 |
An apparatus includes an array of sub-diffraction limit-sized light receptors formed in a substrate having a light receiving surface. Each receptor is configured to output an n-bit element and to change state based on the absorption of at least one photon (n is an integer >0). The apparatus includes an optical filter structure disposed over the light receiving surface, the structure having an array of filter pixels, each having an associated passband spectral characteristic. A data element obtained from the array of receptors is generated from a combination of a plurality of the n-bit elements output from a plurality of light receptors that underlie filter pixels having at least two different passband spectral characteristics. The filter pixels having at least two different passband spectral characteristics form a gradient filter wherein bandpass regions increase when moving from a central region of the gradient filter towards an edge region.
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申请公布号 |
US8179457(B2) |
申请公布日期 |
2012.05.15 |
申请号 |
US20090456881 |
申请日期 |
2009.06.23 |
申请人 |
KOSKINEN SAMU T.;KALEVO OSSI M.;RISSA TERO;ALAKARHU JUHA H.;NOKIA CORPORATION |
发明人 |
KOSKINEN SAMU T.;KALEVO OSSI M.;RISSA TERO;ALAKARHU JUHA H. |
分类号 |
H04N3/14;G01J3/50;H01J5/16;H04N5/335;H04N9/04 |
主分类号 |
H04N3/14 |
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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