Results 291 to 300 of about 4,290,469 (326)

Parallelism maps for optically contacted etalons

Applied Optics, 1981
A measurement technique is described that is capable of producing accurate numerical maps of the parallelism defect of optically contacted Fabry-Perot etalons. A photoelectric raster scan of the etalon transmission intensity distribution is performed at each of three closely spaced etalon tunings, one at maximum on-axis and two at the half-maxima on ...
T L, Killeen, P B, Hays, J, Devos
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Optical trapping map of dielectric spheres

Applied Optics, 2013
Many applications use a focused Gaussian laser beam to manipulate spherical dielectric particles. The axial trapping efficiency of this process is a function of (i) the particle radius r, (ii) the ratio of the refractive index of particle over the medium, and (iii) the numerical aperture of the delivered light beam.
Murat, Muradoglu, Tuck Wah, Ng
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Optical Ionospheric Mapping.

1983
Abstract : This report describes the support services provided by Keo Consultants to the operation and improvement of the All Sky Imaging Photometer on the NKC135 Airborne Ionospheric Observatory. It describes two new intensified camera systems constructed for the ground-based support of the airborne measurements and gives examples of the data obtained.
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History of Optical Mapping

2021
Optical mapping is an imaging technique that is used to record physiologic phenomena from live tissue. To date, optical imaging has been applied in the heart to record NADH+, transmembrane potential, and intracellular calcium transients. While NADH+ imaging relies on the intrinsic fluorescent signals from the tissue, fluorescent dyes have been ...
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Angular feature mapping: an optical method

Applied Optics, 1990
An optical method is demonstrated where the angles at which line segments in a pattern intersect are estimated and mapped.
Y, Naor, J, Shamir
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Map transformations by optical anamorphic processing

Applied Optics, 1983
A map transformation is a willful geometrical distortion of an image. Examples are rotation, shearing, and local stretching of the coordinate system. We describe an optical setup that performs a map transformation by spatial filtering with two phase-only filters.
A W, Lohmann, N, Streibl
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Optical Mapping of Arrhythmias

2000
Optical mapping of voltage dependent fluorescence in cardiac tissue allows for the simultaneous measurement of membrane potential from many locations on the surface of the heart. The development of this technology has revolutionized the field of cardiac electrophysiology and has provided new insights into the mechanisms of initiation and maintenance of
Gregory E. Morley, Dhananjay Vaidya, José Jalife   +2 more
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Optical Mapping

2008
Igor Efimov, Vladimir Nikolski, Gil Bub
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WHOLE GENOME OPTICAL MAPPING

Proceedings of the 4th Asia-Pacific Bioinformatics Conference, 2005
An innovative new technology, optical mapping, is used to infer the genome map of the location of short sequence patterns called restriction sites. The technology, developed by David Schwartz, allows the visualization of the maps of randomly located single molecules around a million base pairs in length.
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Optical Mapping Instrument (OMI)

SPIE Proceedings, 1990
The Optical Mapping Instrument (OMI) is intended to operate from a low earth orbit spacecraft, such as the Columbus Polar platform, and produce very high spatial resolution images of the ground, suitable for the manufacture of both conventional maps and digital elevation models. The instrument concept is based on the use of two fixed telescopes viewing
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