Results 11 to 20 of about 14,035 (212)
Design Considerations for Large Detector Arrays on Submillimeter-wave Telescopes [PDF]
, 2000 The emerging technology of large (~ 10,000 pixel) submillimeter-wave bolometer arrays presents a novel optical design problem---how can such arrays be fed by diffraction-limited telescope optics where the primary mirror is less than 100,000 wavelengths ...
Stark, Antony A.
core +4 more sources
Quasi-static aberrations induced by laser guide stars in adaptive optics [PDF]
, 2006 Laser Guide Star Adaptive Optics (LGS AO) systems use the return from an artificial guide star to measure the wavefront aberrations in the direction of the science object.
Bouchez, Antonin H. +3 more
core +1 more source
BMC Ophthalmology, 2018 Background The prospective observation study aimed to evaluate changes in corneal higher-order aberrations induced by advancement of pterygium using an anterior-segment optical coherence tomography (AS-OCT) and Zernike aberration analysis.
Keiichiro Minami +4 more
doaj +1 more source
Analysis and interpretation of the Seidel aberration coefficients in digital holography [PDF]
, 2011 Peer reviewedPublisher ...
Champagne +10 more
core +1 more source
Methods of optimizing X-ray optical prescriptions for wide-field applications [PDF]
, 2010 We are working on the development of a method for optimizing wide-field X-ray telescope mirror prescriptions, including polynomial coefficients, mirror shell relative displacements, and (assuming 4 focal plane detectors) detector placement along the ...
Elsner, Ronald F. +3 more
core +3 more sources
Photorefractive keratectomy results in myopic patients with thin cornea eyes
Oman Journal of Ophthalmology, 2015 Background: To evaluate the results of visual acuity and quality, and corneal integrity in myopic patients with a thin cornea who received photorefractive keratectomy (PRK).
Hassan Hashemi +2 more
doaj +1 more source
The Infrared Imaging Spectrograph (IRIS) for TMT: optical design of IRIS imager with "Co-axis double TMA" [PDF]
, 2016 IRIS (InfraRed Imaging Spectrograph) is one of the first-generation instruments for the Thirty Meter Telescope (TMT). IRIS is composed of a combination of near-infrared (0.84--2.4 $\mu$m) diffraction limited imager and integral field spectrograph.
Harakawa, Hiroki +12 more
core +3 more sources
Results from the GMT Ground-Layer Experiment at the Magellan Telescopes [PDF]
, 2006 We present results from our two year study of ground-layer turbulence as seen through the 6.5-meter Magellan Telescopes at Las Campanas Observatory. The experiment consists of multiple, moderate resolution, Shack-Hartmann wavefront sensors deployed over ...
Athey, A. +3 more
core +3 more sources
The Centration Dilemma in Refractive Corrections: Why Is It Still a Dilemma and How to Cope?
Photonics(1) Background: Defining the optimum center for laser refractive corrections is difficult, with many of the available approaches having pros and cons. Decentered ablations result in undesirable side effects like halos, glare, monocular diplopia, and a ...
Samuel Arba Mosquera, Shwetabh Verma
doaj +1 more source
, 2019 Digital aberration measurement and removal play a prominent role in computational imaging platforms aimed at achieving simple and compact optical arrangements.
Huang, Xizhi +5 more
core +1 more source