LENS ACTUATOR

PROBLEM TO BE SOLVED: To provide a lens actuator used mainly for a camera and a mobile phone, which can achieve the improvement in positional accuracy of a lens holder.SOLUTION: When being moved in a direction of an optical axis OA of a lens relative to a fixing unit 24, a lens holder 21 is moved in...

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Main Authors TOGAWA HIROYUKI, OISHI SUGURU, KIMOTO SHINSUKE, KAMEYAMA YASUAKI, SAKAI YASUSHI, TANAKA HIDEKAZU, MORIO KENICHI, IKUSHIMA KIMIYA
Format Patent
LanguageEnglish
Published 20.01.2014
Subjects
BLASTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
HEATING
LIGHTING
MACHINES OR ENGINES FOR LIQUIDS
MECHANICAL ENGINEERING
MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
PRODUCING MECHANICAL POWER
SPRING, WEIGHT, INERTIA OR LIKE MOTORS
WEAPONS
WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Summary:PROBLEM TO BE SOLVED: To provide a lens actuator used mainly for a camera and a mobile phone, which can achieve the improvement in positional accuracy of a lens holder.SOLUTION: When being moved in a direction of an optical axis OA of a lens relative to a fixing unit 24, a lens holder 21 is moved in a state where guide balls 23A to 23D are in contact with the lens holder 21 by the tension of wires. As a result, the lens holder 21 is supported by the wires and the guide balls 23A to 23D, so that the positional accuracy of the lens holder 21 is improved.
Bibliography:Application Number: JP20120148245