News tagged with lenses
Lenses can bend light and sound in almost any direction
(PhysOrg.com) -- When an optical fiber is bent by 90° or more, the light begins to leak away, posing a problem for fiber optics communications. But by using special lenses that can bend light by not only ...
Apr 02, 2012 |
4.2 / 5 (12) |
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New interferometer could simplify materials research
(PhysOrg.com) -- “Most current hard x-ray interferometers are based on crystals, which require their high quality and high mechanical stability,” Anatoly Snigirev tells PhysOrg.com. “This can make x-ray interferometry quite ...
Aug 13, 2009 |
5 / 5 (13) |
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Adjustable Fluidic Lenses for Eyesight Correction Applications
(PhysOrg.com) -- Researchers from the University of Arizona have created a fluid-based opthalmic lens in which the amount of fluid can be constantly adjusted to provide customized eye correction. The lens may one day be incorporated ...
Feb 24, 2009 |
4.9 / 5 (7) |
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DARPA sets sights on high-tech contact lenses
(Phys.org) -- A Bellevue, Washington, company specializing in display technology based on eyewear and contact lenses has sealed a deal with DARPA. Innovega, which says its technology can open a “new dimension ...
Technology / Hi Tech & Innovation
Apr 15, 2012 |
4.9 / 5 (17) |
11
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Dark matter core defies explanation
(PhysOrg.com) -- Astronomers using data from NASA's Hubble Telescope have observed what appears to be a clump of dark matter left behind from a wreck between massive clusters of galaxies. The result could ...
Mar 02, 2012 |
4.9 / 5 (25) |
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A breakthrough in superlens development: Cheap, simple lens to let us see a single virus
A superlens would let you see a virus in a drop of blood and open the door to better and cheaper electronics. It might, says Durdu Guney, make ultra-high-resolution microscopes as commonplace as cameras in ...
Jan 09, 2012 |
4.8 / 5 (29) |
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Hubble directly observes the disc around a black hole
(PhysOrg.com) -- Scientists have used the NASA/ESA Hubble Space Telescope to observe a quasar accretion disc -- a glowing disc of matter that is slowly being sucked into its galaxy's central black hole. Their ...
Nov 04, 2011 |
4.8 / 5 (46) |
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Cosmic magnifying lenses distort view of distant galaxies
Looking deep into space, and literally peering back in time, is like experiencing the universe in a house of mirrors where everything is distorted through a phenomenon called gravitational lensing. Gravitational ...
Jan 12, 2011 |
4.7 / 5 (10) |
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Light bending by a black hole may offer proof of extra dimensions
(PhysOrg.com) -- Researchers at the University of Pennsylvania report that a new test for measuring the ability of gravity to bend light seen from distant stars around large objects like black holes may offer proof of the ...
Nov 18, 2010 |
4.2 / 5 (38) |
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Detailed dark matter map yields clues to galaxy cluster growth
(PhysOrg.com) -- Astronomers using NASA's Hubble Space Telescope took advantage of a giant cosmic magnifying glass to create one of the sharpest and most detailed maps of dark matter in the universe. Dark ...
Nov 12, 2010 |
4.3 / 5 (23) |
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Astronomers use galactic magnifying lens to probe elusive dark energy
A team of astronomers has used a massive galaxy cluster as a cosmic magnifying lens to study the nature of dark energy for the first time. When combined with existing techniques, their results significantly ...
Aug 19, 2010 |
4.4 / 5 (20) |
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Astronomers discover an unusual cosmic lens
Astronomers at the California Institute of Technology (Caltech) and Ecole Polytechnique Fédérale de Lausanne (EPFL) in Switzerland have discovered the first known case of a distant galaxy being ...
Jul 16, 2010 |
4.5 / 5 (23) |
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Electronic spectacles coming to market soon
(PhysOrg.com) -- US company PixelOptics has invented electronic spectacles that can automatically change focus as you lower your head to read a book, and could spell the end of the bifocal.
Technology / Hi Tech & Innovation
Jun 23, 2010 |
4.6 / 5 (19) |
5
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Hubble confirms cosmic acceleration with weak lensing (w/ Video)
(PhysOrg.com) -- A group of astronomers, led by Tim Schrabback of the Leiden Observatory, conducted an intensive study of over 446 000 galaxies within the COSMOS field, the result of the largest survey ever ...
Mar 25, 2010 |
4.5 / 5 (15) |
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Astronomically Large Lenses Measure the Age and Size of the Universe (w/ Video)
(PhysOrg.com) -- Using entire galaxies as lenses to look at other galaxies, researchers have a newly precise way to measure the size and age of the universe and how rapidly it is expanding, on a par with other ...
Mar 01, 2010 |
4.3 / 5 (11) |
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