Imaging device, control method of imaging device, and pixel structure
AssigneeRicoh Company, Ltd.
InventorsKazuhiro Yoneda, Hirofumi Watanabe, Takaaki Negoro, Katsuhiko Aisu, Yasukazu Nakatani, Katsuyuki Sakurano
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Abstract
An imaging device having phototransistors in photodetectors of pixels is disclosed. The imaging device includes an implanted electrode configured to separate the pixels, a first emitter disposed at a position adjacent to the implanted electrode, and a second emitter disposed such that a distance from the implanted electrode to the second emitter is longer than a distance from the implanted electrode to the first emitter.
Claims14
An imaging device having phototransistors in photodetectors of pixels, the imaging device comprising:
- an implanted electrode configured to separate the pixels;
- a first emitter disposed at a position adjacent to the implanted electrode;
- and
- a second emitter disposed such that a distance from the implanted electrode to the second emitter is longer than a distance from the implanted electrode to the first emitter,
- wherein the second emitter is surrounded by the first emitter.
An imaging device having phototransistors in photodetectors of pixels, the imaging device comprising:
- an implanted electrode configured to separate the pixels;
- a first emitter disposed at a position adjacent to the implanted electrode;
- and
- a second emitter disposed such that a distance from the implanted electrode to the second emitter is longer than a distance from the implanted electrode to the first emitter,
- wherein in a case where a voltage is applied to the implanted electrode, the first emitter outputs an optical current amplified in a surface of the implanted electrode when reading, and the second emitter discharges electric residual charges remaining in a base when resetting.
A method of controlling an imaging device, the imaging device having phototransistors in photodetectors of pixels, each of the phototransistors having an implanted electrode configured to separate the pixels, a first emitter disposed adjacent to the implanted electrode, and a second emitter disposed such that a distance from the implanted electrode to the second emitter is longer than a distance from the implanted electrode to the first emitter, the method comprising:
- in a case where a voltage is applied to the implanted electrode,
- turning the transistor connected to the first emitter via wiring on and turning the transistor connected to the second emitter via wiring off such that the first emitter outputs an optical current amplified in a surface of the implanted electrode when reading;
- and
- turning the transistor connected to the first emitter via wiring off and turning the transistor connected to the second emitter via wiring on such that the second emitter discharges electric residual charges remaining in a base when resetting.
Dependencies are inferred from the claim text.