Asymmetrical microlenses on pixel arrays

Details Asymmetrical microlenses on pixel arrays Asymmetrical microlenses on pixel arrays

2005-10-18

2008-11-25

Pyo, Kevin (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C257S294000, C257S432000, C250S214100, C250S216000, C359S619000

Reexamination Certificate

active

07456380

ABSTRACT:
An image sensor includes a plurality of photosensitive sites; a plurality of asymmetrical-shaped microlenses positioned spanning the photosensitive sites; wherein incoming light is directed in a predetermined direction by an asymmetrical surface of the asymmetrical-shaped microlenses onto the photosensitive sites for capturing the light in a substantially uniform manner.

REFERENCES:
patent: 5536455 (1996-07-01), Aoyama et al.
patent: 6709796 (2004-03-01), Irving et al.
patent: 2003/0210462 (2003-11-01), Freese et al.
patent: 2005/0078377 (2005-04-01), Li et al.
patent: 195 45 484 (1997-06-01), None
patent: WO 02/49366 (2002-06-01), None

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