发明名称 |
Guided-mode-resonance transmission color filters for color generation in CMOS image sensors |
摘要 |
Imager pixel arrays and methods for forming imager pixel arrays. An image sensor pixel includes a photosensor and a waveguide grating resonance filter formed over the photosensor. The waveguide grating resonance filter is configured to pass light to the photosensor in a wavelength band and to block light outside of the wavelength band. The waveguide grating resonance filter includes a grating material having a first refractive index and arranged in a grating pattern with a grating pitch, and has an effective refractive index that is a function of the first refractive index. A combination of the grating pitch and the effective refractive index is selected to correspond to the wavelength band.
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申请公布号 |
US7858921(B2) |
申请公布日期 |
2010.12.28 |
申请号 |
US20080115045 |
申请日期 |
2008.05.05 |
申请人 |
APTINA IMAGING CORPORATION |
发明人 |
STANTON WILLIAM A.;WANG FEI;SHI ZHONG |
分类号 |
G02B5/30 |
主分类号 |
G02B5/30 |
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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