Electronic neutral density filter

Details Electronic neutral density filter Electronic neutral density filter

2007-01-10

2009-12-22

Epps, Georgia Y (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S2140RC, C257S312000

Reexamination Certificate

active

07635833

ABSTRACT:
An image sensor with an electronic neutral density filter. Each pixel of the image sensor is capable of being electronically adjusted such that the total charge integration is effectively changed by an amount of the adjustment. The adjustment uses a variable capacitor, here are paper wrapped are formed by an MOS transistor. The capacitor may be within each pixel, or may be shared between multiple pixels.

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