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US 8,284,273 B2Granted
Imager for photographing a subject with a proper size
AssigneePentax Ricoh Imaging Company, Ltd.
InventorsHirokazu Maeda, Hiroyuki Tanaka
Life of this patent
Estimating the term…
Abstract
An imager is provided having an image-capturing device, a display, and a view angle controller. The image-capturing device captures a subject image and outputs an image signal. The display displays a through image consisting of multiple images continuously displayed. The view angle controller controls a view angle of an image so that a ratio of an area of a subject in an area of an image is maintained at a certain value when the display displays a through image.
Claims19
An imager comprising:
- an image capturer that captures a subject image and outputs an image signal;
- a display that displays a through image consisting of multiple images continuously displayed;
- a view angle controller that controls a view angle of an image so that a ratio of an area of a subject to an area of an image is maintained at a certain value when said display displays the through image;
- and
- said view angle controller comprises a lens system and a zoom optical system that is provided in said lens system, and controls a view angle of an image with the zoom optical system when a subject is in a certain area that is intersected by the optical axis of the zoom optical system,
- said view angle controller further comprises a cutout zoom part that widens or narrows a partial image that is cut from an image output by said image capturer so that said view angle controller controls a view angle of an image, and controls a view angle of an image with the cutout zoom part when a subject is not in the certain area that is intersected by the optical axis of the zoom optical system,
- wherein whether or not the certain area is intersected by the optical axis of the zoom optical system is determined based on whether or not a center of the image capturer is within the certain area.
4 more elements
An imager comprising:
- an image capturer that captures a subject image and outputs an image signal;
- a display that displays a through image consisting of multiple images continuously displayed;
- and
- a view angle controller that controls a view angle of an image so that a ratio of an area of a subject to an area of an image is maintained at a certain value when said display displays the through image;
- wherein said view angle controller comprises a lens system, a zoom optical system that is provided in said lens system, and a cutout zoom part that widens or narrows a partial image that is cut from an image output by said image capturer so that said view angle controller controls a view angle of an image, widens a view angle of an image with the cutout zoom part when a ratio of an area of a subject to an area of an image is greater than a certain value, and widens a view angle of an image with the zoom optical system when the cutout zoom part is positioned at a maximum wide angle limit, and
- wherein the view angle is Widened by the zoom optical system with respect to the cutout zoom part.
3 more elements
An imager comprising:
- an image capturer that captures a subject image and outputs an image signal;
- a display that displays a through image consisting of multiple images continuously displayed;
- and
- a view angle controller that controls a view angle of an image so that a ratio of an area of a subject to an area of an image is maintained at a certain value when said display displays the through image;
- wherein said view angle controller comprises a lens system, a zoom optical system that is provided in said lens system, and a cutout zoom part that widens or narrows a partial image that is cut from an image output by said image capturer so that said view angle controller controls a view angle of an image, narrows a view angle of an image with the zoom optical system when a ratio of an area of a subject to an area of an image is smaller than a certain value, and narrows a view angle of an image with the cutout zoom part when the zoom optical system is positioned at a maximum telephoto limit, and
- wherein the view angle is narrowed by the zoom optical system with respect to the cutout zoom part.
3 more elements
Dependencies are inferred from the claim text.