lenses

Cosmic lens reveals distant galactic violence

harminka — Tue, 21 Oct 2008 05:43:36 -0500

By cleverly unraveling the workings of a natural cosmic lens, astronomers have gained a rare glimpse of the violent assembly of a young galaxy in the early Universe. Their new picture suggests that the galaxy has collided with another, feeding a supermassive black hole and triggering a tremendous burst of star formation.

Self-moisturizing contact lenses, naturally

harminka — Wed, 09 Jul 2008 14:46:51 -0500

Chemical engineering researchers at McMaster University have shown that a common fluid found in our bodies can be used as a natural moisturizing agent in contact lenses.

Soldered lenses

harminka — Tue, 13 May 2008 13:06:13 -0500

Lenses in optical devices are kept in place by adhesives. This can cause problems when the microscopes and cameras are employed inside a vacuum, as the adhesives may release gases that contaminate the lenses. One alternative is to solder them instead.

When poor communication pokes you in eye

harminka — Mon, 07 Apr 2008 13:04:54 -0500

The ocular lens belongs to the optical apparatus and focuses incidental beams of light onto the retina. Now, a research team led by Professor Dr. Jochen Graw of the Institute of Developmental Genetics, of the Helmholtz Zentrum München, has been able to decipher a genetic defect responsible for small eyes and an incomplete, clouded lens in the so-called Aey12 mouse mutants. These results lead to conclusions concerning cataracts in humans, because, in this case too, the lens loses its transparency.

Stanford researchers developing 3-D camera with 12,616 lenses

harminka — Thu, 20 Mar 2008 08:47:02 -0500

The camera you own has one main lens and produces a flat, two-dimensional photograph, whether you hold it in your hand or view it on your computer screen. On the other hand, a camera with two lenses (or two cameras placed apart from each other) can take more interesting 3-D photos.

Canon Introduces Two Highly Anticipated Telephoto Lenses at PMA 2008

harminka — Fri, 25 Jan 2008 14:45:05 -0600

Contact lenses with circuits, lights possible platform for superhuman vision

harminka — Fri, 18 Jan 2008 05:31:30 -0600

Movie characters from the Terminator to the Bionic Woman use bionic eyes to zoom in on far-off scenes, have useful facts pop into their field of view, or create virtual crosshairs. Off the screen, virtual displays have been proposed for more practical purposes - visual aids to help vision-impaired people, holographic driving control panels and even as a way to surf the Web on the go.

New teleconverter lens, ZUIKO DIGITAL 2x Teleconverter EC-20

harminka — Wed, 17 Oct 2007 13:55:31 -0500

Canon Will Exhibit Two New Telephoto Lenses

harminka — Tue, 16 Oct 2007 10:58:39 -0500

Breaking Barrier Toward Nanometer X-ray Resolution

harminka — Mon, 01 Oct 2007 12:57:40 -0500

A team of researchers at the U.S. Department of Energy's Brookhaven National Laboratory have overcome a major obstacle for using refractive lenses to focus x-rays.

Nikon's 14mm Ultra Wide-Angle Zoom Lens

harminka — Thu, 23 Aug 2007 09:03:23 -0500

Nikon Introduces the World’s First 14mm Ultra Wide-Angle Zoom Lens with a Constant f/2.8 Aperture and a Highly Versatile 24-70mm f/2.8 Zoom, Making Professional Lens Selection Easier Than Ever

Nikon introduced 3 new super-telephoto NIKKOR lenses

harminka — Thu, 23 Aug 2007 08:55:06 -0500

Nikon today introduced three new super-telephoto NIKKOR lenses that offer professional photographers the latest innovations in lens technology and optical design. The new AF-S NIKKOR 400mm f/2.8G ED VR, AF-S NIKKOR 500mm f/4G ED VR, and AF-S NIKKOR 600mm f/4G ED VR all offer unprecedented image quality, responsiveness and versatility along with new features such as Nikon’s VR II Vibration Reduction technology and Nikon's exclusive Nano Crystal Coat.