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 -
Tiny LEDs Developed For Dust-Sized Computers
'They use sparkles to talk to each other...' - Neal Stephenson, 1995.
Seabreacher, H.G. Winter's 1939 Torpoon
'Ken lay full-length in the padded body compartment, his feet resting on the controlling bars of the directional planes, hands on the torpoon's engine levers.' - HG Winters, 1939.
Project Soli Radar Gesture Chip Now FCC Approved
'He waved his hand and the circuit switched abruptly.' - Philip K. Dick, 1955.
Implosion Fabrication Shrinks 3D Objects To Nanoscale
'Carter had watched miniaturization a hundred times...' - Isaac Asimov, 1965.
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.
Nobe 3-Wheel Electric Vehicle Parking Like I, Robot
Spidercar, Spidercar, does whatever a spidercar does.
Michelin Self-Sealing Tires On Ford's Explorer
'...a seal of compressed plastifoam to save the air.'
Mushroom Eats Plastic, Saves Planet
Fungus Amongus, SaveUs!
Juggalo Face Paint Disrupts Facial Recognition
'... designed to foil facial recognition systems.'
Mojipic Smart Voice Vehicle Emojis
KITT, what's your response?
Unusual Twist On Woman Dates Robot
'My hearing, vision and awareness went along with that excellent imitation of a young Adonis...'
BrainNet Triple Telepathic Gaming Threat
'In the gloomy half-darkness the three idiots sat babbling.'
AVAS Noisemakers Required For EVs By EU
'...a sound tape to supply the noise of a soi-disant "[internal combustion]" engine...'
Pun Generation Via Neural Nets
'You said you wanted him to be able to distinguish between laugh-power in different gags...'
Blood Battery Robotic Fish
'With one fluid motion, it surged forward, plunged, and was gone.'
Lightyear One Solar-Powered Electric Car (Design By Heinlein)
'It drew its power from six square yards of sunpower screens on its low curved roof.'
'Agression Detectors' Don't Work When Spying On Students
'The professional agitators had also learned how to modulate their voices below the danger level...'
Mining Of Golden Asteroid Foretold In 1898 Science Fiction
'This must be a golden planet—this little asteroid.'
Miners! NASA Wants To License RASSOR Excavator
'The borers had been dismantled and packed away.'
Bee+ Robobee Now With Four Wings
'It was a tiny thing, scarcely more than an inch and a half in length...'
CNSILK Robotic Spider Builder
'We could certainly spin a web right through the Solar System, if we can think of a good use for one.'
More SF in the News Stories
More Beyond Technovelgy science news stories