Results 201 to 210 of about 328,280 (263)
Dysregulation of Non-Muscle Myosin IIA Assembly and Phosphorylation in S100A4 Null Mouse Lens. [PDF]
J Cell PhysiolMaddala R +3 more
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Correcting lens system for perimetry
Ophthalmic and Physiological Optics, 1995Summary A lens system to correct for both refractive error and perimeter test distance is frequently needed for accurate perimetry. Patients often lack appropriate near vision corrections and full aperture trial case lenses, when they are available, barely cover the central 30° and hence frequently produce lens rim artefacts.
Henson, David B., Earlam, Richard A.
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Lens Opacities Classification System
Archives of Ophthalmology, 1988The Lens Opacities Classification System (LOCS) is a simple system for classifying age-related human lens opacities at the slit lamp or in retroilluminated and slit-lamp photographs. The system employs a set of standard Neitz CTR retroilluminated black-and-white photographs for classification of cortical and posterior subcapsular cataracts and a single
L T, Chylack +4 more
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Zoom Lens Systems with Aspherical Plastic Lens
IEEE Transactions on Consumer Electronics, 1987Light-weight zoom lens systems with aspherical lens elements, zoom ratio of 6, for a camcorder have been developed by applying new optical design and high precision plastic solding technology.
Takesuke Maruyama +4 more
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Design of a Lens System for Micro Lens Lithography
International Optical Design, 2006Design details of a micro lens lithography system are discussed. This system contains three micro lens arrays with aspheric surfaces. We simulate and optimize this system with geometrical and diffraction-based methods using available software.
Hamid Reza Fallah, Ayatollah Karimzadeh
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"The Crystalline Lens System."
JAMA: The Journal of the American Medical Association, 1928AN APPEAL TO THE GENERAL PROFESSION FOR CLOSER COOPERATION IN THE WORK OF THE OPHTHALMOLOGIST For many years I have been impressed with the conviction that ophthalmology was too remotely separated from the activities of the general profession, and that there is a need to stimulate, even though in a slight degree, a spirit of mutual interest and ...
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Proceedings of the 2002 Interntional Symposium on Underwater Technology (Cat. No.02EX556), 2003
A lens system sonar is understood as a system consisting of an antenna array and acoustic lens. The mathematical algorithms for the correct tasks of analysis and synthesis of arbitrary lens system sonars are given. Numerical experiments and laboratory tests of the system consisting of a two-element antenna array and heterogeneous lens have been carried
P.P. Unru +3 more
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A lens system sonar is understood as a system consisting of an antenna array and acoustic lens. The mathematical algorithms for the correct tasks of analysis and synthesis of arbitrary lens system sonars are given. Numerical experiments and laboratory tests of the system consisting of a two-element antenna array and heterogeneous lens have been carried
P.P. Unru +3 more
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Analysis of Perturbed Lens Systems
Applied Optics, 1970In tolerancing a lens system, it is necessary to know the effects of fabrication and alignment errors on the image quality. In this report, the wavefront aberration due to a small parameter perturbation is derived. This may be calculated from ray tracing through the nominal system only, and its linearity is extremely useful for tolerancing. The results
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Applied Optics, 1989
Situations exist in the area of optical information processing where one may choose between either a single large lens or many small lenslets side by side. The choice will be influenced by many parameters, among others by the space-bandwidth product SW. The SW is an upper limit for the number of data channels which can be handled in parallel. Hence, we
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Situations exist in the area of optical information processing where one may choose between either a single large lens or many small lenslets side by side. The choice will be influenced by many parameters, among others by the space-bandwidth product SW. The SW is an upper limit for the number of data channels which can be handled in parallel. Hence, we
openaire +2 more sources