US 7,518,287 B2
Actuator fine motion mechanism including the actuator, and camera module including the fine motion mechanism
Taku Hirasawa, Kyoto (Japan); and Hironori Kumagai, Osaka (Japan)
Assigned to Panasonic Corporation, Osaka (Japan)
Appl. No. 10/570,766
PCT Filed Jun. 07, 2005, PCT No. PCT/JP2005/010392
§ 371(c)(1), (2), (4) Date Mar. 07, 2006,
PCT Pub. No. WO2005/122380, PCT Pub. Date Dec. 22, 2005.
Claims priority of application No. 2004-167979 (JP), filed on Jun. 07, 2004.
Prior Publication US 2007/0024715 A1, Feb. 01, 2007
Int. Cl. H01L 41/08 (2006.01)
U.S. Cl. 310—323.02  [310/328] 23 Claims
OG exemplary drawing
 
1. An actuator which includes a driver including: a substrate having a predetermined width and a predetermined length when viewed from a thickness direction of the substrate; a reinforcing member provided on one of the thickness-wise faces of the substrate; and displacement means, provided on the other thickness-wise face of the substrate, for displacing, with respect to one of the lengthwise ends of the substrate, the other lengthwise end in a width direction of the substrate,
wherein the reinforcing member is configured so that the flexural rigidity thereof in the substrate's width direction is lower than that in the substrate's thickness direction.