title: Electrically tunable-focusing and polarizer-free liquid crystal lenses for ophthalmic applications.
abstract: An electrically tunable-focusing and polarizer-free liquid crystal (LC) lens for ophthalmic applications is demonstrated. The optical mechanism of a LC lens used in human eye system is introduced. The polarizer-free LC lens for myopia-presbyopia based on artificial accommodation is demonstrated. The continuously tunable-focusing properties of the LC lenses are more practical in applications for different visional conditions of people. The concept we proposed can also be applied to another types of lenses as long as the focusing properties are tunable. The concept in this paper can also be extensively applied to imaging systems, and projection systems, such as cameras in cell phones, pico projectors, and endoscopes.
authors.affiliation: Department of Photonics, National Chiao Tung University, 1001 Ta Hsueh Rd., Hsinchu 30010, Taiwan. yilin@mail.nctu.edu.tw
authors.forename: Yi-Hsin
authors.initials: YH
authors.lastname: Lin
authors.forename: Hung-Shan
authors.initials: HS
authors.lastname: Chen
mesh_terms: D003261:Contact Lenses; D004574:Electromagnetic Fields; D004581:Electronics / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D050866:Liquid Crystals / Q000737:chemistry* / Q000528:radiation effects*; D011474:Prosthesis Design; D012031:Refractometry / Q000295:instrumentation*