Solid state image pickup device
AssigneeFuji Photo Film Co., Ltd.
InventorJun Hasegawa
Life of this patent
Estimating the term…
Abstract
A solid state image pickup device includes: a photoelectric conversion element line having a plurality of first and second photoelectric conversion elements disposed alternately, the first and second photoelectric conversion elements being sensitive to light of different colors; first and second charge storage area lines for storing electric charges photoelectrically converted by the first and second photoelectric conversion elements; first and second charge read units for reading the electric charges stored in the first and second charge storage area lines; first and second transfer members for sequentially transferring the read electric charges to an external circuit; and first and second charge drain members for draining electric charges in the first and second charge storage members.
Claims29
A solid state image pickup device comprising:
- a photoelectric conversion element line having a plurality of first and second conversion elements disposed alternately, the first and second photoelectric conversion elements converting light having different colors into electric charges;
- first transfer means for transferring electric charges generated by the plurality of first photoelectric conversion elements to an external circuit;
- a first transfer gate for transferring the electric charges generated by the plurality of first photoelectric conversion elements to said first transfer means;
- a first drain for draining unnecessary electric charges generated by the plurality of first photoelectric conversion elements;
- a first drain gate for transferring the unnecessary electric charges generated by the plurality of first photoelectric conversion elements to said first drain;
- second transfer means for transferring electric charges generated by the plurality of second photoelectric conversion elements to an external circuit;
- a second transfer gate for transferring the electric charges generated by the plurality of second photoelectric conversion elements to said second transfer means;
- a second drain for draining unnecessary electric charges generated by the plurality of second photoelectric conversion elements;
- a second drain gate for transferring the unnecessary electric charges generated by the plurality of second photoelectric conversion elements to said second drain;
- and
- a controller for independently controlling a charge transfer by said first and second transfer gates or by said first and second drain gates.
An image sensor having a first line sensor for generating image signals of red and blue colors and a second line sensor for generating image signals of green color, wherein the first line sensor comprising:
- a photoelectric conversion element line having a plurality of first and second conversion elements disposed alternately, the first and second photoelectric conversion elements converting light of red and blue colors into electric charges;
- first transfer means for transferring electric charges generated by the plurality of first photoelectric conversion elements to an external circuit;
- a first transfer gate for transferring the electric charges generated by the plurality of first photoelectric conversion elements to said first transfer means;
- a first drain for draining unnecessary electric charges generated by the plurality of first photoelectric conversion elements;
- a first drain gate for transferring the unnecessary electric charges generated by the plurality of first photoelectric conversion elements to said first drain;
- second transfer means for transferring electric charges generated by the plurality of second photoelectric conversion elements to an external circuit;
- a second transfer gate for transferring the electric charges generated by the plurality of second photoelectric conversion elements to said second transfer means;
- a second drain for draining unnecessary electric charges generated by the plurality of second photoelectric conversion elements;
- a second drain gate for transferring the unnecessary electric charges generated by the plurality of second photoelectric conversion elements to said second drain;
- and
- a controller for independently controlling a charge transfer by said first and second transfer gates or by said first and second drain gates.
Dependencies are inferred from the claim text.