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apertures News
New Approaches Improve Beam Expansion
Mar 7, 2014 — Afocal beam expansion systems based on the basic principles of Kepler and Galileo telescopes can be improved in terms of wavefront quality by using additional optical surfaces or aspherizing them using monolithic beam expansion elements. Everyday...
Sound Waves Focused Like A Camera Lens
UNIVERSITY PARK, Pa., Aug. 10, 2012 — A metamaterial capable for the first time of manipulating a variety of acoustic waves with one simple device was designed and computationally tested. The device holds promise for applications across various acoustic fields, from medical ultrasound...
Calibrating the Thermal Camera
Dec 1, 2009 — Thermal imaging, once the domain of the defense sector, is finding applications in a number of commercial and medical fields. As more manufacturers join the thermal camera business, the need to test these devices to recognized standards is becoming...
SPATIAL FILTERS
Sep 1, 2006 — Melles Griot has added a full line of apertures, spatial filters and microscope components to its online catalog. Visitors to its Web site will find specifications on reticles, resolution test targets and focusing microscope bodies, which accept...
(4 results found)
April 2024
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