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P‐219L: Late‐News Poster : A Digitally Switchable Multi‐focal lens Using Freeform Optics for Wearable Displays
Author(s) -
Wang Xuan,
Qin Yi,
Hua Hong
Publication year - 2017
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.11957
Subject(s) - lens (geology) , focal length , spatial light modulator , computer science , optics , wearable computer , multiplexing , computer hardware , optical path , computer graphics (images) , physics , embedded system , telecommunications
We present the design of a new switchable multi‐focal lens which consists of a freeform lens and a programmable spatial light modulator (SLM). By rapidly switching the input light path through different segments of the freeform lens with the programmable SLM, multiple foci are created in a time‐multiplexed fashion. While the proposed multi‐focal lens method can have a broad range of applications in imaging and display systems, we experimentally demonstrate a proof of concept prototype for an imaging system.