Easy manufacture large aperture wide range variafocal liquid crystal diffractive lens

Javier Pereiro-García; Manuel Caño-García; Xabier Quintana Arregui; Jose M. Otón; Morten A. Geday

doi:10.1117/12.3012669

13 March 2024 Easy manufacture large aperture wide range variafocal liquid crystal diffractive lens

Javier Pereiro-García, Manuel Caño-García, Xabier Quintana Arregui, Jose M. Otón, Morten A. Geday

Proceedings Volume 12907, Emerging Liquid Crystal Technologies XIX; 1290706 (2024) https://doi.org/10.1117/12.3012669
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

Cascaded spiral diffractive lenses (cSDL) based on liquid crystal (LC) technology, offer low voltage (⪅10Vrms) direct addressing, for wide aperture (>25mm OD) transparent lenses with very high fill factors (>98%), and broad tunable focal range (>4 Diopters). The two cascaded devices are conventional LC cells, manufactured using a single direct laser writing lithographical process on a transparent ITO covered glass substrate. In this presentation we will present our latest results, employing dual frequency materials, the use of the lenses in zoom systems, and in dynamic achromatic image capture. We will present implementations with both 24 and 72 electrodes, allowing for quasi analogue tuning in the whole tuning range. We will also present the employed direct addressing electronics.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Javier Pereiro-García, Manuel Caño-García, Xabier Quintana Arregui, Jose M. Otón, and Morten A. Geday "Easy manufacture large aperture wide range variafocal liquid crystal diffractive lens", Proc. SPIE 12907, Emerging Liquid Crystal Technologies XIX, 1290706 (13 March 2024); https://doi.org/10.1117/12.3012669

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available