US 7,321,395 B2
Image capturing apparatus and method of setting exposure for AF control executed by image capturing apparatus
Yoshiharu Gotanda, Asaka (Japan)
Assigned to FUJIFILM Corporation, Tokyo (Japan)
Filed on Nov. 07, 2003, as Appl. No. 10/702,774.
Claims priority of application No. 2002-324560 (JP), filed on Nov. 08, 2002.
Prior Publication US 2004/0095505 A1, May 20, 2004
Int. Cl. H04N 5/232 (2006.01)
U.S. Cl. 348—370  [348/371; 348/345; 348/362] 10 Claims
OG exemplary drawing
 
1. An image apparatus, comprising:
an image pickup device;
an image taking lens which forms an image of an object on the image pickup device, the image taking lens being subjected to autofocus control so as to focus on a main object according to contrast information on the image obtained from the image pickup device;
an autofocus auxiliary light emitting device which emits a variable amount of autofocus auxiliary light to illuminate the object when a photometric value of the object is smaller than a predetermined value; and
a setting device which operates when the autofocus auxiliary light is emitted, to set an aperture value and a shutter speed for the autofocus control according to a photometric value determined with illuminating the object with the autofocus auxiliary light.