Results 261 to 270 of about 643,746 (319)
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Optics Letters, 1993
A self-focusing is observed that arises from a purely second-order nonlinear susceptibility in a phase-matched second-harmonic-generation experiment. Control of the magnitude and sign of the intensity-dependent phase shift is accomplished through a dispersion external to the nonlinear medium.
D Pierrottet +3 more
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A self-focusing is observed that arises from a purely second-order nonlinear susceptibility in a phase-matched second-harmonic-generation experiment. Control of the magnitude and sign of the intensity-dependent phase shift is accomplished through a dispersion external to the nonlinear medium.
D Pierrottet +3 more
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2018
Vicia lens (L.) Coss. & Germ. subsp. lens (= Lens culinaris Medik.) – Secteur Plaine Orientale, commune de Pancheraccia, Frassiccia, le long de la RT50 (anc. N200), sur le côté N de la route, au SSE du lieu-dit Chiaramonte, à env. 200 m au N du point coté 39, culture de blés anciens, en bord de champ, une trentaine de pieds, 21.4.2017, Delage, A. s.n. (
Jeanmonod, Daniel, éd.
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Vicia lens (L.) Coss. & Germ. subsp. lens (= Lens culinaris Medik.) – Secteur Plaine Orientale, commune de Pancheraccia, Frassiccia, le long de la RT50 (anc. N200), sur le côté N de la route, au SSE du lieu-dit Chiaramonte, à env. 200 m au N du point coté 39, culture de blés anciens, en bord de champ, une trentaine de pieds, 21.4.2017, Delage, A. s.n. (
Jeanmonod, Daniel, éd.
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Der Ophthalmologe, 2010
Cataract surgery has developed into a very safe and highly reproducible procedure but the ultimate goal to also restore physiological accommodation has not yet been achieved. A variety of accommodative intraocular lenses (IOLs) and surgical techniques have been suggested to cure presbyopia but all showed only poor accommodative effects by objective ...
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Cataract surgery has developed into a very safe and highly reproducible procedure but the ultimate goal to also restore physiological accommodation has not yet been achieved. A variety of accommodative intraocular lenses (IOLs) and surgical techniques have been suggested to cure presbyopia but all showed only poor accommodative effects by objective ...
openaire +2 more sources
Soft Matter, 2012
Four different types of micro lens-on-lens array structures, one of which corresponds to an array of a compound eye lens, were fabricated on a commercial plastic film using a novel fabrication technique. All lens-on-lens structures were fabricated not as an isolated lens but as an array on a transparent plastic film on a large scale.
Byoung Guk Park +3 more
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Four different types of micro lens-on-lens array structures, one of which corresponds to an array of a compound eye lens, were fabricated on a commercial plastic film using a novel fabrication technique. All lens-on-lens structures were fabricated not as an isolated lens but as an array on a transparent plastic film on a large scale.
Byoung Guk Park +3 more
openaire +1 more source
Current Eye Research, 1984
Lens cells can synthesize, degrade, and remodel lipids. Endogenous lipid synthesis, in conjunction with uptake of exogenous cholesterol and certain fatty acids, leads to the formation of a plasma membrane that is especially rich in sphingomyelin, cholesterol, and long-chain saturated fatty acids.
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Lens cells can synthesize, degrade, and remodel lipids. Endogenous lipid synthesis, in conjunction with uptake of exogenous cholesterol and certain fatty acids, leads to the formation of a plasma membrane that is especially rich in sphingomyelin, cholesterol, and long-chain saturated fatty acids.
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Dropped Lens Fragment, Dislocated Intraocular Lens
2014Management of posteriorly dislocated crystalline lens has traditionally been performed with a standard 20-gauge vitrectomy system. The latest surgical platforms integrate multiple devices into single systems and feature advanced fluidics, vitreous cutting technology, and intraocular pressure control along with continued improvements in small-gauge ...
Manish, Nagpal, Pravin, Jain
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Applied Optics, 1994
An infrared panoramic lens system that utilizes two lens groups to project a full 3600 cylindrical field of view onto a two-dimensional annular format is described. Each lens group has its well-defined role. The first group is a lens block that converts a cylindrical field of view into a two-dimensional annular format located within the lens itself ...
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An infrared panoramic lens system that utilizes two lens groups to project a full 3600 cylindrical field of view onto a two-dimensional annular format is described. Each lens group has its well-defined role. The first group is a lens block that converts a cylindrical field of view into a two-dimensional annular format located within the lens itself ...
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Archives of Ophthalmology, 1975
The subjects to be reviewed are as follows: (1) Anatomy, histology, and pathology. (2) Genetic and congenital anomalies. (3) Cataract. (Under cataract we shall consider the following: incidence and prevention of blindness from cataract; formation of an experimental production of cataract; cataract related to ocular and systemic disease; cataract ...
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The subjects to be reviewed are as follows: (1) Anatomy, histology, and pathology. (2) Genetic and congenital anomalies. (3) Cataract. (Under cataract we shall consider the following: incidence and prevention of blindness from cataract; formation of an experimental production of cataract; cataract related to ocular and systemic disease; cataract ...
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Lens Development: Fiber Elongation and Lens Orientation
Science, 1963When the lens of the 5-day chick embryo is surgically reversed so that its epithelium faces the neural retina the elongation of those lens cells which have already differentiated is arrested and the epithelial cells differentiate into a new set of lens fibers.
J L, COULOMBRE, A J, COULOMBRE
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