33‐4: Fast Switchable Multi‐Focus Polarization‐Dependent Ferroelectric Liquid‐Crystal Lenses for Virtual Reality. Issue 1 (28th June 2021)

• Record Type: Journal Article
• Authors: Yuan, Zheng-Nan; Cheng, Ming; Yu, Xin-Yi; Sun, Zhi-Bo; Li, An-Ran; Mukherjee, Souptik; Kwok, Hoi-Sing; Srivastava, Abhishek. K.
• Is Part Of: Digest of technical papers. Volume 52:Issue 1(2021)
• Page Start: 439
• Page End: 442
• Publication Date: 2021-06-28
• Subjects: Fast-switchable multi-focus lenses system -- Ferroelectric liquid crystal lens -- Virtual reality; Information display systems -- Congresses; 621.3815422
• DOI: 10.1002/sdtp.14711
• Languages: English
• ISSNs: 0097-966X

Abstract

Abstract : In this paper, we propose a fast switchable lens system with multiple focal points. Specifically, the combination of the Electrically Suppressed Helix Ferroelectric Liquid Crystal (ESHFLC) based polarization rotator and a passive polarization‐dependent LC lens can switch the focal points at high speed (50µs). Moreover, a cascaded assembly of 3 such lens units shows 8‐focal points, with a fast response time of 50µs. This device shows promising potential for VR and depth‐mapping.