Optical system and camera module

The optical system with distinct lens groups and an optical path control member addresses miniaturization challenges, providing improved optical performance and autofocus in compact camera modules.

WO2026155462A1PCT designated stage Publication Date: 2026-07-23LG 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
2026-01-05
Publication Date
2026-07-23

AI Technical Summary

Technical Problem

Existing camera modules face challenges in miniaturization due to large Effective Focal Length (EFL) and increased thickness, especially when incorporating multiple lenses, which limits their installation in portable devices and complicates zoom and autofocus functions.

Method used

An optical system with first and second lens groups having different refractive powers, combined with an optical path control member, allows for compact design and improved optical characteristics by minimizing lens movement and aberration correction, enabling various magnifications and autofocus functions.

Benefits of technology

The system achieves enhanced optical performance with reduced thickness and power consumption, supporting various magnifications and effective aberration correction, suitable for compact camera modules in devices like smartphones and drones.

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Abstract

An optical system according to an embodiment of the present invention comprises first and second lens groups disposed along the optical axis, wherein the first lens group has positive (+) refractive power, the second lens group has positive (+) refractive power and includes an optical path control member disposed at the object side of the first lens group, an object side surface of a lens disposed closest to the object side in the first lens group on the optical axis has a convex shape, the optical path control member performs OIS movement, and the first lens group performs AF movement.
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