Image sensor and electromagnetic radiation imaging device

Details Image sensor and electromagnetic radiation imaging device Image sensor and electromagnetic radiation imaging device

2008-08-27

2010-12-07

Lee, John R (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S370080, C348S308000

Reexamination Certificate

active

07847231

ABSTRACT:
To provide a small-size image sensor and electromagnetic radiation imaging device which can obtain a good image without relying on the condition of an object, the image sensor including a plurality of pixel units arranged two-dimensionally, wherein each of the plurality of pixel units includes: a first photodiode and a second photodiode; a readout circuit which reads a signal generated by the first photodiode and a signal generated by the second photodiode, and outputs the read signals, the readout circuit being connected to the first photodiode and the second photodiode; and a difference circuit which outputs a difference signal corresponding to a difference between the signal read from the first photodiode and the signal read from the second photodiode, the difference circuit being connected to the readout circuit.

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