Results 11 to 20 of about 45,422,298 (247)
High Dk piggyback contact lens system for contact lens-intolerant keratoconus patients
Clinical Ophthalmology, 2011 Tomris Sengor, Sevda Aydin Kurna, Suat Aki, Yelda ÖzkurtFatih Sultan Mehmet Training and Research Hospital, Istanbul, TurkeyBackground: The aim of the study was to examine the clinical success of high Dk (oxygen permeability) piggyback contact ...
Tomris Sengor +3 more
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A Novel Fisheye-Lens-Based Photoacoustic System
Sensors, 2016 This paper presents a novel fisheye-lens-based photoacoustic (PA) system. In conventional PA systems, mechanical motors are utilized to obtain the target information due to the small fields of view of such systems.
Hojong Choi, Jaemyung Ryu, Jungsuk Kim
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Laser Radar System Based on Lightweight Diffractive Lens Receiver System
PhotonicsDiffractive lens has advantages over traditional reflective lens, such as light weight, high folding compression ratio, high tolerance for surface figure error and low manufacturing costs.
Jiajia Yin +4 more
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Daylighting System Based on Novel Design of Linear Fresnel lens
Buildings, 2017 In this paper, we present a design and optical simulation of a daylighting system using a novel design of linear Fresnel lens, which is constructed based on the conservation of optical path length and edge ray theorem. The linear Fresnel lens can achieve
Thanh Tuan Pham +2 more
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Tunable-focus liquid lens system controlled by antagonistic winding-type SMA actuator.
Optics Express, 2009 A new tunable-focus liquid lens system is proposed that consists of a liquid-filled PDMS (polydimethylsiloxane) membrane, special liquid injection mechanism based on a cam structure, antagonistic winding-type SMA(shape memory alloys) actuator for ...
H. Son, M. Y. Kim, Yun-Jung Lee
semanticscholar +3 more sources
Biomimetic variable-focus lens system controlled by winding-type SMA actuator.
Optics Express, 2009 Inspired by the biomechanics of the human eye, which includes a crystalline lens, ciliary muscles, and zonular fibers, the proposed variablefocus lens system consists of a PDMS lens, winding-type SMA actuator, and load arms.
Jong-moon Choi, H. Son, Yun-Jung Lee
semanticscholar +3 more sources
New type of antidrying lens for vitreous surgery with a noncontact wide-angle viewing system
Clinical Ophthalmology, 2013 Tomoyuki Chihara,1 Mihori Kita21Department of Ophthalmology, Hyogo Prefectural Amagasaki Hospital, Hyogo, 2Department of Ophthalmology, National Hospital Organization Kyoto Medical Center, Kyoto, JapanAbstract: Drying of the cornea during surgery, which ...
Chihara T, Kita M
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Contact lens & anterior eye : the journal of the British Contact Lens Association, 2021 Therapeutic contact lenses for ocular drug delivery have received considerable interest as they can potentially enhance ocular bioavailability, increase patient compliance, and reduce side effects.
Dan Chau Thuy Nguyen +4 more
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H0LiCOW - II. Spectroscopic survey and galaxy-group identification of the strong gravitational lens system HE 0435-1223 [PDF]
, 2016 Galaxies located in the environment or along the line of sight towards gravitational lenses can significantly affect lensing observables, and can lead to systematic errors on the measurement of H-0 from the time-delay technique. We present the results of
D. Sluse +17 more
semanticscholar +1 more source
Movable electrowetting optofluidic lens for optical axial scanning in microscopy
Opto-Electronic Advances, 2019 Optical axial scanning is essential process to obtain 3D information of biological specimens. To realize optical axial scanning without moving, the tunable lens is a solution.
Li Lei +3 more
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