Design of center deviation measurement system of lens group based on liquid lens

Qiang Liu; Tao Ma

doi:10.1117/12.2642704

20 December 2022 Design of center deviation measurement system of lens group based on liquid lens

Qiang Liu, Tao Ma

Proceedings Volume 12315, Optical Design and Testing XII; 123151F (2022) https://doi.org/10.1117/12.2642704
Event: SPIE/COS Photonics Asia, 2022, Online Only

Conference Poster

Abstract

In order to simplify the structure of the centering system and measure the center deviation of the upper and lower surfaces of the optical lens group synchronously, a center deviation measurement system without moving parts based on liquid lens is proposed. The system adopts the reflection defocus measurement method and the bidirectional centering principle, the principle of system measurement is given, and the calculation formulas of tilt and decenter errors are derived. The results show that the system can achieve 0.5μm tilt measurement resolution and 2" decenter measurement resolution. Finally, the working logic and structure design of the system are given. The system has the advantages of simple structure, convenient measurement and high efficiency, and can measure the center deviation of the lens group without changing the measuring lens. It has a broad development prospect in the field of high precision automatic lens group assembly.

Citation Download Citation

Qiang Liu and Tao Ma "Design of center deviation measurement system of lens group based on liquid lens", Proc. SPIE 12315, Optical Design and Testing XII, 123151F (20 December 2022); https://doi.org/10.1117/12.2642704

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