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.
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