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US 8,619,183 B2Granted
Image pickup apparatus and optical-axis control method
AssigneeSharp Kabushiki Kaisha
InventorsHiroshi Ito, Makoto Kitagawa, Tomoya Shimura, Shinichi Arita, Satoru Inoue, Hirokazu Katakame, Sakae Saito, Shunichi Sato
Life of this patent
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Abstract
In order to perform adjustment of relative positions between an optical system and imaging devices, a plurality of the imaging devices, a plurality of solid lenses that form images of the imaging devices, and a plurality of optical-axis control units that control the direction of optical axes of light incident to the imaging devices are included.
Claims10
An image pickup apparatus comprising:
- a plurality of imaging devices;
- a plurality of solid lenses configured to respectively form an image on the plurality of the imaging devices;
- a plurality of non-solid lenses configured to respectively form the image on the plurality of the imaging devices, and to respectively be changed a refractive index distribution thereof;
- a video composition processing unit configured to generate a video signal by composing image signals output by the plurality of the imaging devices;
- and
- a control unit configured to control an optical axis of a light entering at least one of the plurality of the imaging devices by changing the refractive index distribution of at least one of the plurality of the non-solid lenses such that an energy of first frequency for the video signal becomes greater than a predetermined threshold value, wherein the first frequency is higher than a second frequency, and the second frequency is maximum frequency imageable by the at least one of the plurality of the imaging devices.
3 more elements
An optical-axis control method comprising:
- generating a video signal by composing image signals output by a plurality of imaging devices on which a plurality of solid lenses respectively form an image;
- and
- controlling an optical axis of a light entering at least one of the plurality of the imaging devices by changing a refractive index distribution of at least one of a plurality of non-solid lenses whose refractive index distribution is changeable, the plurality of the non-solid lenses forming the image on the plurality of the imaging devices, such that an energy of first frequency for the video signal becomes greater than a predetermined threshold value, wherein the first frequency is higher than a second frequency, and the second frequency is a maximum frequency imageable by the at least one of the plurality of the imaging devices.
Dependencies are inferred from the claim text.