Apple iPad Pro 2017 Samsung Galaxy S8 Apple iPhone Edition Samsung Galaxy Note 8 HTC 11 Sony Xperia L1
Apple iPad Pro 2017 Samsung Galaxy S8 Apple iPhone Edition Samsung Galaxy Note 8 HTC 11 Sony Xperia L1
  2017 NEWS APPLE CANON FUJIFILM HTC HUAWEI LG NOKIA NIKON OLYMPUS PANASONIC PENTAX SAMSUNG SONY  
Samsung Galaxy
 
     
Powered by True
Counted by OneStat.com
Mark Peters : May 24th 2005 - 21:50 CET

Revolutionary lens 5x thinner than sheet of paper


Digital Camera Review Test Appareil Photo Numerique Prueba camara digital Digitale Camera Test Dijital Kamera Incelemeleri Digitalkamera Test Digitalkamera
NewsRevolutionary lens 5x thinner than a sheet of paper : Scientists from Université Laval’s Faculty of Sciences and Engineering have invented a lens five times thinner than a sheet of paper that is able to zoom in and out without mechanical parts. Tigran Galstian and Vladimir Presnyakov present this amazing piece of optical instrumentation in the latest issue of the Journal of Applied Physics. "There are several possible applications for such a lens. We believe one of its most promising developments could be in camera-embedded cell phones," says Galstian. "Our opto-electrical zoom lens would be of much higher quality than the ones that currently equip these phones."
Revolutionary lens 5x thinner than sheet of paperZoom lens in camera phones
The digital zooms now used in camera phones only enlarge part of a picture without enhancing its quality, giving sometimes disappointing results. Other than its size, the greatest advantage of the lens invented by the two Université Laval researchers is that it allows for the movement of the focal point - as with a real camera - thus increasing the clarity, detail, and overall quality of an enlarged picture. Such a technology could help boost a market that seems to be losing its snap.

How is the opto-electrical zoom lens made?
According to a recent market study by one of the major camera makers, a significant number of camera phone owners find their devices less than satisfying, mentioning among other problems the poor picture quality. The new lens is made by adding a small quantity of photosensitive material to a liquid crystal cell. When the material is exposed to laser light, it forms a network of stable polymers varying in density according to the intensity of exposure. "The network is like a spiderweb, with its center denser than its periphery," explains Galstian. "When we apply a weak electrical current to it, the crystals in the center realign differently from those in the periphery and thus take on the shape and behavior of a lens."

Focal point from 60 centimeters to infinity
The curve of the lens - its focal point - can be modified by changing the intensity and frequency of the electrical current. The researchers have thus been able to modify the lens' focal distance from 1.6 to 8 meters in a few milliseconds by increasing the voltage from 1.5 to 4.5 volts. "The reaction is very fast and doesn’t involve any mobile parts or mechanical movements." The focal point of the lens can go from 60 centimeters to infinity.

In theory, the lens sounds like the best thing to have
Fred Greenslade, a sports and wildlife photographer in Portage la Prairie, Man., is intrigued by the invention: "I'll believe it when I see it but it sounds great. I guess I'd have a few questions. Is it going to work? How fast will it be? What's the quality going to be? "But it sounds, in theory, like the best thing to have."





   Sigma 120-300mm f2.8 EX DG HSM lens
   Sigma 300mm F2.8 APO EX DG HSM lens
   Sigma 50-500mm F4-6.3 EX DG HSM lens
   Next  Samsung Digimax i5 | Digimax #1 digital camera
   Previous  Fujifilm FinePix F10 review
   News by brand:News
   News by category:Lens
   News by brand and category:News Lens


Android smartphone
Latest News announcements
World's First Medical Smart Watch unveiled in Taiwan
Virtual Reality app for Learning Languages
Technology festival: London Tech Week 2017
Innovative smartphone charging purse for woman
Drone World Expo 2017
Drone selfie camera integrates with smartphone
Are camera phones a thing of the past?
Why smartphones will never replace cameras
Sevenhugs Smart Remote control
Drone World Expo 2016
Ceramic Wireless Bluetooth Speaker
Katy Perry Prismatic World Tour
Waterproof Bluetooth portable speaker
Analog watches with built-in activity tracker
Augmented Reality Smart Glasses System
 
Twitter LetsGoDigital
Latest news headlines
Nintendo Switch 2017 game parties
HDR10+ technology explained by Samsung
4K 360-Degree VR action camera with live-streaming
Samsung Benelux releases new smartphone app
Chinese smartphone market report 2017
Samsung opens Tech Center in Iran
New Samsung chat app helps people with aphasia
Samsung Broadcast Solutions at NAB 2017 Show
Samsung Biometric Virtual Reality navigation
Best consumer electronics brand in Africa
Sony releases Xperia XZ Premium in pink
In-Depth TV test named Samsung QLED best TV
iPhone 8 becomes OLED iPhone
Galaxy S8 price details for phone components
Motorola Moto Mods compatible with Moto Z2 Force
   
  5G Accessories Android Galaxy iPhone Camera Mobile phones Rumors Premium Smartphones Smartwatches Tablets TV   CES CeBIT IFA Photokina PMA