An adaptive lens with large focusing dynamic range based on PDMS gel

Xiahui Wang; Kun Huang; Miao Xu; Liping Wang; Qinghua Chen; Yuan-Bin Chen

doi:10.1117/12.2666847

4 April 2023 An adaptive lens with large focusing dynamic range based on PDMS gel

Xiahui Wang, Kun Huang, Miao Xu, Liping Wang, Qinghua Chen, Yuan-Bin Chen

Proceedings Volume 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications; 126177H (2023) https://doi.org/10.1117/12.2666847
Event: 9th Symposium on Novel Photoelectronic Detection Technology and Applications (NDTA 2022), 2022, Hefei, China

Abstract

Polydimethyl-siloxane (PDMS) fabricated with different preparation methods, which include that the weight ratio of the main agent and curing agent, the curing temperature or the curing time is different, have different material properties. We demonstrate a high-performance adaptive lens for imaging based on the physical and chemical properties of a new proportion of the main agent and curing agent of PDMS. A flexible and plastic PDMS gel based on the weight ratio of the base and the curing agent of 80:1 is prepared as the lens material, Iris Diaphragm (ID) is chosen as the driver. Driving the lever of the iris diaphragm, when the aperture is reduced from 3.94mm to 3.58mm, the PDMS gel surface gradually bulges, the focal length of the lens is reduced from infinite to 10mm. In addition, the resolution of the lens is 161.5 lp/mm. Compared with other types of adaptive lenses, such as liquid crystal and liquid lenses, gel-type adaptive lenses have the advantages of large focusing dynamic range, good optical performance, good stability, compact structure, simple production, and low cost.

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Xiahui Wang, Kun Huang, Miao Xu, Liping Wang, Qinghua Chen, and Yuan-Bin Chen "An adaptive lens with large focusing dynamic range based on PDMS gel", Proc. SPIE 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications, 126177H (4 April 2023); https://doi.org/10.1117/12.2666847

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KEYWORDS

Liquids

Glasses

Refractive index

Polymers

Liquid crystals

Adaptive optics

Distortion

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