Title:
カメラ及びカメラの制御方法
Document Type and Number:
Japanese Patent JP5495841
Kind Code:
B2
Abstract:
A camera comprises: a photographing unit converting an image formed by a shooting lens into an electric signal; a subject brightness obtaining unit; an exposure computing unit computing a shutter speed and an aperture value; a shutter controlling a time period in which the photographing unit accumulates the electric signal; and an aperture control unit controlling an aperture value of an aperture unit that limits a quantity of light incident from the shooting lens, wherein the exposure computing unit calculates a deviation between a previous exposure amount and a proper exposure amount on the basis of brightness information relating to a previous exposure and output by the subject brightness obtaining unit, the aperture value of the aperture unit, and the shutter speed of the shutter, and computes an aperture value of the aperture unit for a subsequent exposure on the basis of the deviation.
Inventors:
Yasunori Kudo
Application Number:
JP2010035970A
Publication Date:
May 21, 2014
Filing Date:
February 22, 2010
Export Citation:
Assignee:
Olympus Imaging Corporation
International Classes:
H04N5/238; G03B7/097
Domestic Patent References:
| JP2009111855A | ||||
| JP2006310971A |
Attorney, Agent or Firm:
Yoshiyuki Osuga