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Latest Geometrical optics Stories

2012-06-25 22:21:50

WINDSOR, England, June 26, 2012 /PRNewswire/ -- Sit back and relax with the AutoRefill program from LensWay.co.uk, the online glasses and contact lenses retailer, giving you the chance to order your contact lenses online and opt to receive an automatic refill every month on a day to suit you, delivered free of charge directly to your door. What's more, you'll get an exclusive 5% discount on every refill order you receive. And with no commitment, you're free to cancel or...

2012-03-15 06:00:00

WINDSOR, Berkshire, March 15, 2012 /PRNewswire/ -- St Patricks's Day is almost upon us and LensWay - the online glasses and contact lenses retailer - is marking the event with some fantastic deals on top designer glasses and reductions on contact lenses packages. Paddy's Day is traditionally a day of short-term merriment but what better way to celebrate than by taking advantage of an opportunity to purchase a new pair of spectacles at a massively reduced rate?...

2011-12-23 01:11:19

Researchers have shown how arrays of tiny "plasmonic nanoantennas" are able to precisely manipulate light in new ways that could make possible a range of optical innovations such as more powerful microscopes, telecommunications and computers. The researchers at Purdue University used the nanoantennas to abruptly change a property of light called its phase. Light is transmitted as waves analogous to waves of water, which have high and low points. The phase defines these high and low points...

2011-12-09 03:00:00

WINDSOR, England, December 9, 2011 /PRNewswire/ -- In August 2011, LensWay, the online optical store, introduced the revolutionary Splash One Day [http://www.lensway.co.uk/landing-pages/cSplash-p1.html ] range of contact lenses so that you can experience all day comfort at an affordable price (from as little as GBP7.99 per box). These contact lenses are designed to ensure maximum comfort throughout the day, by applying HD technology to aberration control to improve the...

The Contact Lens Of The Future
2011-11-22 09:40:51

Contact lenses have been around for decades, correcting vision problems and giving cosmetic or therapeutic aid, but what about using them as a mini-monitor to project text messages or short emails right in front of your eye? Sound like science fiction? Well, according to US researchers at Washington University, the idea of wearing computerized contact lenses is very close to reality. The futuristic technology has taken a step closer with the development of a prototype lens that could...

2011-11-18 08:00:00

ASE Optics, an optical engineering services firm, has improved lens system performance by 400 percent for a technology customer. Rochester, NY (PRWEB) November 18, 2011 ASE Optics, an optical engineering services firm, has recently improved lens system performance by a factor of four for a technology customer. Through ASE Opticsâ discovery service, 20 hours of focused engineering for a discounted cost of $1950, ASE explored alternatives to off-the-shelf lenses for high speed...

2011-10-12 06:00:00

New toric lens provides consistently crisp, clear vision throughout the day BOSTON, Oct. 12, 2011 /PRNewswire-USNewswire/ --Bausch + Lomb, the global eye health company, launched PureVision®2 for Astigmatism with High Definition(TM) Optics contact lenses, today at the Annual Meeting of the American Academy of Optometry (AAO). The company's latest eye health innovation, PureVision2 HD For Astigmatism lenses feature HD Optics, which provide clarity and meet the special...

2011-09-28 08:00:00

MOUNTAIN VIEW, Calif., Sept. 28, 2011 /PRNewswire/ -- Highlights:* Improvements to industry-leading beam propagation analysis: -- General complex field input supports custom light source definitions. -- Birefringent crystal modeling is included for microlithographic and optical telecommunication devices. -- More robust pre-analysis feature minimizes setup time and maximizes ease of use. -- Multiprocessor support speeds computation time.* Fully integrated Glass Expert tool...

2011-09-27 09:34:11

University of Texas at Austin researchers have discovered how to extract and use information in an individual image to determine how far objects are from the focus distance, a feat only accomplished by human and animal visual systems until now. Like a camera, the human eye has an auto-focusing system, but human auto-focusing rarely makes mistakes. And unlike a camera, humans do not require trial and error to focus an object. Johannes Burge, a postdoctoral fellow in the College of...

Researchers Create Bizarre Optical Phenomena
2011-09-02 09:53:34

  Defying the laws of reflection and refraction Exploiting a novel technique called phase discontinuity, researchers at the Harvard School of Engineering and Applied Sciences (SEAS) have induced light rays to behave in a way that defies the centuries-old laws of reflection and refraction. The discovery, published this week in Science, has led to a reformulation of the mathematical laws that predict the path of a ray of light bouncing off a surface or traveling from one medium...


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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