| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an imaging device capable of performing a quick focusing operation regardless of imaging a visible light image or a near infrared light image. <P>SOLUTION: A zoom controller is controlled so that a movement locus of a focus lens group is different when a normal photographic mode is set and when a near infrared light photographic mode is set. When the near infrared light photographic mode is set, even if a zoom optical system is optical-designed optimal for visible light, the focus lens group is moved on the locus according to the near infrared light photographic mode, so that the focus lens group can be moved in advance according to the set zoom magnification, e.g. to an in-focus position in the infinity distance (but not limited to this) as a reference position. Therefore, an in-focus state of the subject can be obtained even at night by moving the focus lens group only in a short distance by a step operation of an image surface AF. <P>COPYRIGHT: (C)2012,JPO&INPIT |
