Image sensor including microlens having sizes differing...

Details Image sensor including microlens having sizes differing... Image sensor including microlens having sizes differing...

2005-12-29

2009-12-01

Luu, Thanh X (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S226000, C348S373000

Reexamination Certificate

active

07626157

ABSTRACT:
A image sensor has a plurality of microlens disposed across an image area in which centrally disposed red pixels are provided with smaller microlenses and peripherally disposed red pixels are provided with larger microlenses. The size differential, which amounts to a small percentage to compensate for a refractivity differential per wavelength of incident light across the image area, prevents the generation of a reddish effect in an output image. The image sensor includes a color filter array having separate color filters including a long-wavelength filter, and a plurality of microlenses respectively formed on the separate color filters, wherein the microlenses corresponding to the long-wavelength filter have relative sizes differing according to disposition with respect to the color filter array.

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