Adjustable optical element and method for manufacturing an adjustable optical element

By using an actuator composed of a flexible film and a piezoelectric unit, the problem of insufficient adjustment of optical characteristics of optical components in the prior art has been solved, and precise adjustment of characteristics such as focal length, astigmatism and prism power has been achieved, thereby improving the adaptability and flexibility of optical components.

CN116670557BActive Publication Date: 2026-07-14OPTOTUNE SWITZERLAND AG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
OPTOTUNE SWITZERLAND AG
Filing Date
2021-12-21
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing technologies struggle to efficiently adjust the optical characteristics of optical components, such as focal length, astigmatism, and prism power, resulting in insufficient adaptability and flexibility.

Method used

An actuator composed of a flexible membrane and a piezoelectric unit is used to move the liquid in the liquid chamber by controlling the state switching of the piezoelectric unit, thereby changing the shape and characteristics of the optically effective area, including the adjustment of optical properties such as spherical power, cylindrical power, prism power and prism axis.

Benefits of technology

It enables precise adjustment of optical properties, improves the adaptability and flexibility of optical components, and is suitable for a variety of optical applications.

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Abstract

The invention relates to an adjustable optical component (100) comprising a liquid chamber (101), a flexible membrane (1), a shaped element (3) and an actuator (2), wherein the liquid chamber (101) is filled with a liquid (102), the membrane (1) delimits the liquid chamber (101), the membrane (1) is attached to the shaped element (3), the shaped element (3) has an annular shape, wherein the shaped element (3) surrounds an optically effective area (10) of the membrane (1), the actuator (2) comprises a plurality of piezoelectric units (20), the piezoelectric units (20) are coupled to a counterpart (203) in releasable force-fit, the piezoelectric units (20) are arranged to move the counterpart (203), and wherein a relative movement of the counterpart (203) and the piezoelectric units (20) causes a movement of the liquid (102), which induces a change of an optical property of the optically effective area (10).
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