Optical unit with shake correction function

Through innovative design of the gimbal mechanism and the drive mechanism for jitter correction, and by combining magnetic and non-magnetic metal components, the problems of numerous parts and magnetic interference in the optical unit are solved, and the miniaturization and efficient assembly of the optical unit are realized.

CN116360179BActive Publication Date: 2026-06-23SANKYO SEIKI MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SANKYO SEIKI MFG CO LTD
Filing Date
2022-12-15
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In the existing technology, optical units with jitter correction function have problems such as a large number of parts, large size, and lens drive mechanism being susceptible to magnetic interference, making it difficult to achieve miniaturization of movable bodies and improve assembly efficiency.

Method used

It adopts a universal joint mechanism and a jitter correction drive mechanism, uses magnetic metal parts as a yoke, and combines them with non-magnetic metal parts to reduce resin parts. Metal parts are directly installed at the diagonal position of the optical module to avoid magnetic interference and simplify the assembly process.

Benefits of technology

This reduces the size and number of parts of the movable body, avoids magnetic interference, improves assembly efficiency and the strength of the optical module, and ensures the normal operation of the lens drive mechanism.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116360179B_ABST
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Abstract

An optical unit with a shake correction function realizes reduction in the number of parts of a movable body and miniaturization, and suppresses magnetic interference with a lens driving mechanism of an optical module. The movable body of the optical unit with the shake correction function has an optical module, and a first metal member and a second metal member fixed to an outer circumferential surface of the optical module. The first metal member is a magnetic metal, is fixed to side surfaces in a -X direction and a -Y direction of the optical module, and becomes a magnetic yoke with respect to a magnet of a shake correction driving mechanism. The second metal member is composed of a non-magnetic metal, and is fixed to side surfaces in a +X direction and a +Y direction of the optical module. The lens driving mechanism of the optical module is disposed on a side (+X direction) where the second metal member is located with respect to an optical axis. A first connection mechanism that connects a gimbal frame and the movable body in a manner that enables rotation around a first axis is provided on the first metal member and the second metal member.
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