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Latest Geometrical optics Stories

Wavefront Optics Can Help You See Better
2013-08-27 17:44:13

Brett Smith for redOrbit.com – Your Universe Online Astronomers have developed groundbreaking optical techniques to bring distant stars into focus and this same technology is now being appropriated by eye care professionals to improve their analysis and corrective methods. According to a recently published review in the journal Optometry and Vision Science by Indiana University optometrist Larry N. Thibos, the concept of ‘wavefront optics’ is transforming how vision professionals...

New Lenses For Nanoscale Light Beams Are Tiny Liquid Bubbles
2013-08-09 12:43:10

Penn State Bending light beams to your whim sounds like a job for a wizard or an a complex array of bulky mirrors, lenses and prisms, but a few tiny liquid bubbles may be all that is necessary to open the doors for next-generation, high-speed circuits and displays, according to Penn State researchers. To combine the speed of optical communication with the portability of electronic circuitry, researchers use nanoplasmonics -- devices that use short electromagnetic waves to modulate light...

2013-06-27 23:03:10

Eye Excellence is now providing Houston cataract patients with the recently released Trulign™ Toric Lens IOL. Houston, Texas (PRWEB) June 27, 2013 The first accommodating Intraocular Lens (IOL) that also corrects astigmatism is available for cataract patients in Houston at Eye Excellence. Shortly after being approved by the FDA May 2013, Mary Green, Ph.D, M.D., director of Eye Excellence, decided to be one of the first institutions in Houston to carry the revolutionary new Trulign™...

2013-05-09 23:30:44

Loden Vision Centers First in Tennessee & One of First in U.S. to Use This Technolgy. NASHVILLE, TN (PRWEB) May 09, 2013 Loden Vision Centers, Tennessee´s innovator in eye care, is the first ophthalmology practice in Tennessee and one of the first in the entire United States to offer cataract patients FDA-approved TECNIS® Toric Intraocular Lens. This 1-Piece intraocular lens (IOL) has received FDA approval for treatment of cataract patients with pre-existing corneal...

Human Eye Gives Visionary Design For New, More Natural Lens Technology
2012-11-13 17:02:31

Optical Society of America Drawing heavily upon nature for inspiration, a team of researchers has created a new artificial lens that is nearly identical to the natural lens of the human eye. This innovative lens, which is made up of thousands of nanoscale polymer layers, may one day provide a more natural performance in implantable lenses to replace damaged or diseased human eye lenses, as well as consumer vision products; it also may lead to superior ground and aerial surveillance...


Latest Geometrical optics Reference Libraries

45_d1e42be1d02b86de582358c7ab315da5
2010-09-16 15:48:43

A magnifying glass is a convex lens, usually mounted in a frame with a handle, which is used to produce a magnified image of an object. The glass works by creating a magnified virtual image of an object behind the lens. However, the distance between the lens and the object must be shorter than the focal length for the glass to work. If the distance is not correct then the image will appear small and inverted. Many magnifying glasses are mounted on a stand to insure the proper distance...

7_152e02a5c30619830f270e3091ec38522
2004-10-19 04:45:43

Parabolic Mirror -- A parabolic reflector or parabolic dish is a reflective device formed in the shape of a paraboloid of revolution. Parabolic reflectors can either collect or distribute energy such as light, sound, or radio waves. The parabolic reflector functions due to the geometric properties of the paraboloid shape: if the angle of incidence to the inner surface of the collector equals the angle of reflection, then any incoming ray that is parallel to the axis of the dish will be...

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Word of the Day
cock-a-hoop
  • Exultant; jubilant; triumphant; on the high horse.
  • Tipsy; slightly intoxicated.
This word may come from the phrase 'to set cock on hoop,' or 'to drink festively.' Its origin otherwise is unclear. A theory, according to the Word Detective, is that it's a 'transliteration of the French phrase 'coq a huppe,' meaning a rooster displaying its crest ('huppe') in a pose of proud defiance.' Therefore, 'cock-a-hoop' would 'liken a drunken man to a boastful and aggressive rooster.'
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