CMOS imaging device comprising a microlens array exhibiting...

Details CMOS imaging device comprising a microlens array exhibiting... CMOS imaging device comprising a microlens array exhibiting...

2008-05-29

2010-11-30

Sohn, Seung C (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C348S340000, C257S292000, C438S069000

Reexamination Certificate

active

07842909

ABSTRACT:
A CMOS imager includes a photosite array and a microlens array. The microlens array comprises microlenses of a first type and microlenses of a second type, the microlenses of first type being manufactured according to a first circular template having a first radius, the microlenses of second type being manufactured according to a second circular template having a second radius inferior to the first radius, and the first and second templates having overlap areas. One advantage is that the CMOS imager has a high fill rate.

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Chou et al., “A novel method to fabricate gapless hexagonal micro-lens array,” Sensors and Actuators A, vol. 118, 2005, pp. 298-306.

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