LENS POSITION ADJUSTMENT DEVICE, CAMERA MODULE, INFORMATION DEVICE, AND CAMERA DRIVING METHOD

A lens position adjustment device includes a lens holder, a first shape memory alloy (SMA) wire and a second SMA wire. The lens holder holds a lens. The first SMA wire is configured to move the lens holder in a first direction along an optical axis of lens. The second SMA wire is configured to move...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YONEYAMA, Atsushi, UNO, Masaru
Format:	Patent
Sprache:	eng ; fre ; ger
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 ELECTROGRAPHY HOLOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS
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Beschreibung
Zusammenfassung:	A lens position adjustment device includes a lens holder, a first shape memory alloy (SMA) wire and a second SMA wire. The lens holder holds a lens. The first SMA wire is configured to move the lens holder in a first direction along an optical axis of lens. The second SMA wire is configured to move the lens holder in a second direction along the optical axis. The second direction is opposite to the first direction. The lens holder is moved in the first or second direction along the optical axis through energizing the first SMA wire and the second SMA wire and controlling a force that moves the lens holder.