Camera device and optical apparatus
By modifying the magnet shape to reduce the distance between the magnet and yoke, the camera device addresses the limitation of attractive force, enabling thicker coils and improved autofocus performance for larger lenses.
WO2026134681A1PCT designated stage Publication Date: 2026-06-25LG INNOTEK CO LTD
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Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- LG INNOTEK CO LTD
- Filing Date
- 2025-11-11
- Publication Date
- 2026-06-25
AI Technical Summary
Technical Problem
Conventional methods face limitations in increasing the attractive force between the magnet and yoke in camera devices due to the placement of a coil between them, which restricts the ability to accommodate larger and heavier lens diameters.
Method used
The camera device employs a magnet with a protruding shape that reduces the distance between the magnet and yoke, allowing for a thicker coil and enhanced Lorentz force by maximizing the attractive force between the magnet and yoke.
Benefits of technology
This configuration enables increased coil thickness, enhancing the autofocus performance by increasing the Lorentz force, thus supporting larger and heavier lens diameters in smartphone cameras.
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Smart Images
Figure KR2025018555_25062026_PF_FP_ABST
Abstract
The present embodiment relates to a camera device comprising: a base; a holder disposed on the base; a magnet disposed on the holder; a coil interacting with the magnet; a ball disposed between the base and the holder; and a yoke on which an attractive force acts with the magnet, wherein the magnet comprises a first surface facing the yoke, and a protrusion part protruding from the first surface toward the yoke.
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