发明名称 |
Microlensed focal plane array (FPA) using sub-pixel de-selection for improved operability |
摘要 |
A cost-effective FPA includes a plurality of detectors per pixel, wherein radiation is directed by a microlens array into respective focal regions that are covered by the union of the detectors' collections regions within each pixel and any defective detectors are de-selected in the ROIC. The operability of each pixel is evaluated, and a map generated specifying detector de-selection for each pixel. This map is read into memory in the ROIC to de-select bad detectors. Bad detectors are preferably allowed to float to a photovoltage and re-emit some of their accumulated photo charge to neighboring detectors to improve collection efficiency. The radiation levels are preferably read out on a pixel-by-pixel basis. Accordingly, the signals from the selected detectors are combined within each pixel.
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申请公布号 |
US7491920(B2) |
申请公布日期 |
2009.02.17 |
申请号 |
US20060347536 |
申请日期 |
2006.02.02 |
申请人 |
TELEDYNE SCIENTIFIC & IMAGING, LLC |
发明人 |
LEE DONALD L.;TENNANT WILLIAM E. |
分类号 |
H01L27/00;H04N9/64 |
主分类号 |
H01L27/00 |
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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