منابع مشابه
Switchable telescopic contact lens.
We present design and first demonstration of optics for a telescopic contact lens with independent optical paths for switching between normal and magnified vision. The magnified optical path incorporates a telescopic arrangement of positive and negative annular concentric reflectors to achieve 2.8 x magnification on the eye, while light passing through a central clear aperture provides unmagnif...
متن کاملWearable telescopic contact lens.
We describe the design, fabrication, and testing of a 1.6 mm thick scleral contact lens providing both 1× and 2.8× magnified vision paths, intended for use as a switchable eye-borne telescopic low-vision aid. The F/9.7 telescopic vision path uses an 8.2 mm diameter annular entrance pupil and 4 internal reflections in a polymethyl methacrylate precision optic. This gas-impermeable insert is cont...
متن کاملPrevention of Contact Lens Complications
شمار افراد استفاده کننده از لنزهای تماسی در طی ده سال اخیر، بدلیل سهولت کاربردو در دسترس بودن انواع مختلف لنزها افزایش یافته است. هر چند که این امر موجب می گردد تعداد افراد مستعد به لنزهای تماسی افزایش یابد.
متن کاملWink-controlled polarization-switched telescopic contact lenses.
We describe a wink-controlled hands-free switching system for eye-borne telescopic vision, based on a previously tested fixed-magnification telescope embedded within scleral contact lenses. Here we integrate orthogonal polarizers into the contact lens covering the F/9.1 refractive 1× and F/9.6 catadioptric 2.8× vision paths, to allow switching via external liquid crystal shutters. We provide ha...
متن کاملPneumatically switchable graded index metamaterial lens
I. E. Khodasevych, I. V. Shadrivov, D. A. Powell, W. S. T. Rowe, and A. Mitchell School of Electrical and Computer Engineering, RMIT University, Melbourne, VIC 3001, Australia ARC Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS), Melbourne, VIC 3001, Australia Nonlinear Physics Centre, Research School of Physics and Engineering, Australian National University, Canberra, ACT 02...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2013
ISSN: 1094-4087
DOI: 10.1364/oe.21.015980