Liquid Camera Lens Controlled By Sound
A liquid camera lens developed by scientists at the Rensselaer Polytechnic Institute may lead to lighter and more responsive cameras in everything from cars to cellphones.
(Liquid camera lens controlled with sound)
The lens is made up of a pair of water droplets, which vibrate back and forth upon exposure to a high-frequency sound, and in turn change the focus of the lens. By using imaging software to automatically capture in-focus frames and discard any out of focus frames, the researchers can create streaming images from lightweight, low-cost, high-fidelity miniature cameras.
To do this, his new method couples two droplets of water through a cylindrical hole. When exposed to certain frequencies of sound, the device exploits inertia and water’s natural surface tension and becomes an oscillator, or something akin to a small pendulum: the water droplets resonate back and forth with great speed and a spring-like force. Researchers can control the rate of these oscillations by exposing the droplets to different sound frequencies.
By passing light through these droplets, the device is transformed into a miniature camera lens. As the water droplets move back and forth through the cylinder, the lens moves in and out of focus, depending on how close it is to the object. The images are captured electronically, and software can be used to automatically edit out any unfocused frames, leaving the user with a stream of clear, focused video.
SF fans recall Frank Herbert's oil lens from his extraordinary 1965 novel Dune. Herbert described it as "oil held in static tension by an enclosing force field within a viewing tube."
From Controlling Light With Sound: New Liquid Camera Lens as Simple as Water and Vibration.
Scroll down for more stories in the same category. (Story submitted 10/6/2008)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 0 )
Related News Stories -
Dune Fans! Power Your Devices With Sweaty Shirts
Yet another power source from humans.
Zero Mass 'Vaporators' Pull Drinking Water From The Air
Did you think of Star Wars?
Integrated Circuits Printed Right Onto Fabric!
'...a shirt that displayed email on its sleeve. - Margaret Atwood, 2003.
Drones Guided By The Mind Alone
'His treads left no tracks upon the floor...' - Clifford Simak, 1961.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Soft Robotics - Now With 3D Printed Sensors!
'A series of chemelectric afferent nerve-analogues, which permitted it to gauge to an ounce the amount of pressure necessary to snap a bone...'
AI Tool Lynx Insight And The Cybernetic Newsroom
'The structure,... was once a great homeostatic newspaper, the New York Times. It printed itself directly below us...'
Espresso Telescope Searches For Exoplanets
'These instruments were the wonderful ones our astronomers had perfected.'
Dune Fans! Metal-Organic Frameworks Make Science Fiction Real
'Dew collectors,' he muttered, enchanted by the simple beauty of such a scheme.
Manned Maneuvering Unit From 1984
'The glittering little rocket bolted to the black iron behind him.'
Astronaut Gets Younger In Space
'So what we're looking for now is not an antibiotic - an anti-life drug - but an anti-agathic, an anti-death drug...'
Blockchain Used To Verify Election Results
'Any adult could punch into the phone his or her code, followed by a yes or no.'
IJOP Integrated Joint Operations Platform China's Minority Report?
'All day long the idiots babbled, imprisoned in their special high-backed chairs...'
HushMe Bluetooth Device Reinvents The Hush-A-Phone
'Talking into a hush-a-phone which he had plugged into the telephone jack...'
Ultrathin Brain Needle Developed At MIT
Putting drugs into a selected cubic millimeter within the living brain.
Tesla Semi Truck Now At Work
Why wait? Tesla Semi now hard at work.
Illustris: The Next Generation Of Universe Simulation
'This digital device was ... A machine able literally to contain the Universe Itself...'
Scaly Yet Soft Robotic Snake
Love those robotic sneks.
Cool Tinsley Lunar Unicycle Update
Great update of a timeless classic.
NASA's 'Armstrong' Soft Wearable Upper Extremity Garment
'Exact same articulation as your shoulder joint, and it holds your muscles out of the way...'
Kuri Robot Roams Your Home, Taking Pictures
'Small devices with cameras and sound equipment which could move freely...'
More SF in the News Stories
More Beyond Technovelgy science news stories