Camera module, actuator, and portable electronic device

An actuator of a camera module includes a detected portion disposed on a lens barrel, and a position detector including a first sensing coil and a second sensing coil, disposed to face the detected portion, and a reference coil disposed outside of a region facing the detected portion, wherein the po...

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Bibliographische Detailangaben
Hauptverfasser:	Min, Sang Hyun, Lee, Kwang Mook
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 ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS CINEMATOGRAPHY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	An actuator of a camera module includes a detected portion disposed on a lens barrel, and a position detector including a first sensing coil and a second sensing coil, disposed to face the detected portion, and a reference coil disposed outside of a region facing the detected portion, wherein the position detector detects a position of the detected portion in accordance with calculation results of inductances of the first sensing coil and the second sensing coil, and removes noise components by applying inductance of the reference coil to the calculation results of inductances of the first sensing coil and the second sensing coil.