Dynamic correction of astigmatism and defocus using tunable liquid crystal lens (Conference Presentation)

Amit Kumar Bhowmick

doi:10.1117/12.2660846

14 March 2023 Dynamic correction of astigmatism and defocus using tunable liquid crystal lens (Conference Presentation)

Amit Kumar Bhowmick

Proceedings Volume PC12442, Emerging Liquid Crystal Technologies XVIII; PC124420B (2023) https://doi.org/10.1117/12.2660846
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

The main two optical aberrations seen in any imaging system are defocus and astigmatism. Traditionally, the approaches to correct both aberrations utilize the mechanical movement of fixed power spherical and cylindrical lenses. In this report, we have proposed a non-mechanical, electrically tunable optical system that can provide both focus and astigmatism power correction with an adjustable axis. The concept device is comprised of stripe electrode-based gradient refractive index liquid crystal lens. Dynamic astigmatism and focus correction are demonstrated upon the application of the electric field on the designed device. Unlike complex, bulky, and curved shape lens systems, the proposed device is flat, low cost, and low voltage driven.

Conference Presentation

Citation Download Citation

Amit Kumar Bhowmick "Dynamic correction of astigmatism and defocus using tunable liquid crystal lens (Conference Presentation)", Proc. SPIE PC12442, Emerging Liquid Crystal Technologies XVIII, PC124420B (14 March 2023); https://doi.org/10.1117/12.2660846

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