Stereoscopic optical system and image pickup apparatus
AssigneeCanon Kabushiki Kaisha
InventorTakayoshi Yokoyama
Life of this patent
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Abstract
An stereoscopic optical system includes two parallel optical systems arranged in parallel for a single common image sensor. Each optical system has an angle of view in which an image of another optical system is formed in a first area at an outer peripheral portion in an image circle, and includes a field stop in a second area at an inner peripheral portion in the image circle. A distance between centers of the image circles of the two optical systems is shorter than a diameter of each image circle on the image sensor, and at least part of each first area is located outside the image sensor.
Claims10
A stereoscopic optical system comprising two optical systems arranged in parallel and configured to form image circles of the two optical systems on a single image sensor,
- wherein each of the two optical systems has an angle of view in which an image from one optical system is formed in a first area at an outer peripheral portion in an image circle of another optical system,
- wherein each of the two optical systems includes a field stop configured to reduce a light amount in a second area at an inner peripheral portion of the image circle in the parallel arrangement direction,
- wherein each of the field stops is disposed between the image sensor and a lens which is arranged closest of the image sensor in the optical system, and
- wherein a distance between centers of the image circles of the two optical systems is shorter than a diameter of each image circle on the image sensor, and at least part of each first area is located outside the image sensor.
An image pickup apparatus comprising:
- a single image sensor;
- and
- a stereoscopic optical system that includes two optical systems arranged in parallel and configured to form image circles of the two optical systems on the image sensor,
- wherein each of the two optical systems has an angle of view in which an image from one optical system is formed in a first area at an outer peripheral portion in an image circle of another optical system,
- wherein each of the two optical systems includes a field stop configured to reduce a light amount in a second area at an inner peripheral portion in the image circle in the parallel arrangement direction,
- wherein each of the field stops is disposed between the image sensor and a lens which is arranged closest of the image sensor in the optical system, and
- wherein a distance between centers of the image circles of the two optical systems is shorter than a diameter of each image circle on the image sensor, and at least part of each first area is located outside the image sensor.
Dependencies are inferred from the claim text.