Shape memory alloy actuator assembly for optical image stabilisation

An SMA actuator is arranged to tilt the mirror in a zoom camera to effect optical image stabilization. The actuator may comprise four angled-V SMA wires. The actuator may alternatively comprise a gimbal flexure and SMA wires. In this case there may be four SMA wires or two SMA wires and two springs....

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Bibliographic Details
Main Authors Eddington, Robin, Howarth, James
Format Patent
LanguageEnglish
Published 09.04.2024
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
BLASTING
CINEMATOGRAPHY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTROGRAPHY
HEATING
HOLOGRAPHY
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
PHOTOGRAPHY
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:An SMA actuator is arranged to tilt the mirror in a zoom camera to effect optical image stabilization. The actuator may comprise four angled-V SMA wires. The actuator may alternatively comprise a gimbal flexure and SMA wires. In this case there may be four SMA wires or two SMA wires and two springs. The SMA wires may be straight wires or wires hooked in a V shape.
Bibliography:Application Number: US201816490250