| US 7,595,946 B2 | ||
| Imaging apparatus and portable apparatus | ||
| Sekio Saito, Saitama (Japan); Hidenori Takahashi, Saitama (Japan); and Yoshiyuki Takase, Saitama (Japan) | ||
| Assigned to Fujinon Corporation, Saitama-Shi (Japan) | ||
| Filed on Sep. 27, 2007, as Appl. No. 11/905,122. | ||
| Claims priority of application No. P2006-269711 (JP), filed on Sep. 29, 2006. | ||
| Prior Publication US 2008/0080073 A1, Apr. 03, 2008 | ||
| Int. Cl. G02B 7/02 (2006.01) | ||
| U.S. Cl. 359—824 [359/822] | 6 Claims |
| 1. An imaging apparatus comprising:
an imaging lens;
an image pickup device that is placed behind the imaging lens;
a lens drive portion that includes
a magnet that forms a magnetic field and
a coil, placed in the magnetic field, that, upon an input of a current signal, receives a force in an optical axis direction
to move the imaging lens to a position corresponding to the current signal,
the lens drive portion holding the imaging lens, and moving the imaging lens to the position corresponding to the current
signal in the optical axis direction; and
a movement control portion that, when the imaging lens is to be moved, gives to the lens drive portion, a current signal that
is gradually changed from a first current signal corresponding to a first position before movement of the imaging lens, to
a second current signal corresponding to a second position after movement.
|