Devices and Methods for Positioning a Camera Lens with Magnetostrictive Elements

A camera lens actuator unit includes a first lens group that includes at least one lens; a second lens group that includes at least one lens; an inner lens element configured to move along an optic axis between the first lens group and the second lens group; one or more magnetostrictive elements cou...

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Bibliographische Detailangaben
1. Verfasser:	SHEN SHIZHE
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:	A camera lens actuator unit includes a first lens group that includes at least one lens; a second lens group that includes at least one lens; an inner lens element configured to move along an optic axis between the first lens group and the second lens group; one or more magnetostrictive elements coupled to the inner lens element; and at least one voice coil. An image is focused on a digital image sensor by moving the inner lens element along the optic axis between the first lens group and the second lens group. The one or more magnetostrictive elements move the inner lens element along the optic axis in response to a current applied to the at least one voice coil.