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Large Area Tunable Liquid Crystal Lens.

Jamali, Afsoon.

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Large Area Tunable Liquid Crystal Lens.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Large Area Tunable Liquid Crystal Lens./
作者:	Jamali, Afsoon.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	231 p.
附註:	Source: Dissertation Abstracts International, Volume: 80-05(E), Section: B.
Contained By:	Dissertation Abstracts International80-05B(E).
標題:	Physics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13819462
ISBN:	9780438772915

Large Area Tunable Liquid Crystal Lens.
Jamali, Afsoon.

Large Area Tunable Liquid Crystal Lens. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 231 p.

Source: Dissertation Abstracts International, Volume: 80-05(E), Section: B.

Thesis (Ph.D.)--Kent State University, 2018.

A large area tunable lens based on liquid crystals, which is considered for near-to-eye applications, is designed, built, and characterized. Large liquid crystal (LC) lenses with high quality are limited by very slow switching speeds due to the large optical path difference (OPD) required. To reduce the switching time of the lens, the thickness is controlled through the application of several phase segments, similar to the design of a Fresnel lens. A main point of this dissertation is the design of segmented structure to have a minimal effect on the image quality. Our modeling and experimental results demonstrate that minimal image degradation due to the phase segments is observable when the segment spacing is chosen by taking into account human eye resolution. Such lenses have applications related to presbyopia and, in virtual reality (VR) systems, to solve the well-known issue of Accommodation-Convergence (AC) mismatch. To further enhance the optical power of the lens without compromising the response time a hybrid system was proposed. The proposed hybrid system is comprised of Segmented Phase Profile (SPP) and Pancharatnam phase LC lenses. Characterization results indicates that the proposed hybrid system holds considerable promise for overcoming AC conflict in VR systems.

ISBN: 9780438772915Subjects--Topical Terms:

516296
Physics.

Large Area Tunable Liquid Crystal Lens.
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