Imaging apparatus and method for controlling the same

Details Imaging apparatus and method for controlling the same Imaging apparatus and method for controlling the same

2011-02-22

2011-02-22

Perkey, W. B. (Department: 2862)

Photography

Exposure control circuit

Shutter speed function only

C348S221100, C348S362000

Reexamination Certificate

active

07894718

ABSTRACT:
An imaging apparatus includes an image sensor configured to capture an image of an object, a mechanical shutter including a second curtain and a second-curtain holding mechanism configured to electromagnetically hold the second curtain at an initial position prior to a travel, a first temperature sensor disposed within a predetermined range from the second-curtain holding mechanism, a second temperature sensor disposed outside the predetermined range from the second-curtain holding mechanism, a determination unit configured to determine an exposure time for the image sensor according to a brightness of the object, an adjustment unit configured to adjust the exposure time if a temperature difference between temperatures detected by the first and second temperature sensors is greater than a predetermined threshold, and an exposure control unit configured to perform exposure control for the image sensor based on the exposure time adjusted by the adjustment unit if the temperature difference is greater than the predetermined threshold.

REFERENCES:
patent: 4462672 (1984-07-01), Kurosu et al.
patent: 5162836 (1992-11-01), Ishimaru
patent: 5835800 (1998-11-01), Goto et al.

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