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US 5,708,871 AGranted
Focus detecting photoelectric converting apparatus for a camera
AssigneeMinolta Co., Ltd.
InventorsMasataka Hamada, Kazuhiko Yukawa, Tokuji Ishida, Toshio Norita, Hiroshi Ueda
Life of this patent
Estimating the term…
Abstract
A camera includes a CCD line sensor divided into a plurality of blocks and a plurality of monitors provided near each Of the divided blocks and sensing the amount of received light corresponding to each block. The storage of charge in each Block of the CCD is controlled based on the amount of the light received by the monitor. Each block corresponds to each part of an object in a finder of the camera.
Claims14
An imaging device comprising:
- a plurality of image sensor arrays on which an optical image of an object is projected;
- a driver which drives said image sensor arrays to output image signals from said image sensor arrays;
- and
- a control means for controlling said driver so that the driver drives the image sensor array at first speed when the image signals are read from the specified one of said image sensor arrays, and drives the image sensor arrays at second speed faster than the first speed when the image signals are read from all of said image sensor arrays.
1 more element
An imaging device comprising:
- an image sensor on which an optical image is projected;
- a driver which selectably drives said image sensor at first speed and at second speed which is faster than the first speed to provide image signals;
- an amplifier which amplifies said image signals;
- and
- a gain control which controls gain of said amplifier so that the gain for the first speed is larger than the gain for the second speed.
2 more elements
An imaging device comprising:
- an image sensor on which an optical image is projected;
- a driver which selectably drives said image sensor at first speed and at second speed which is different from the first speed to provide image signals;
- and
- a focus detecting means for detecting a focus condition of the projected optical image on said image sensor;
- wherein said driver drives the image sensor at first speed in a first cycle and drives the image sensor at the second speed in a following second cycle.
2 more elements
Dependencies are inferred from the claim text.