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 |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Engineering ")

Prufrock The Newest Boring Machine
'It sounds to me as though you had invented a kind of metal earthworm...'

Stratuscent Electronic Nose
'It's picking up diphenyl compounds and tetra hydrocarbons.' - Michael Crichton, 1985.

Smart Contact Lenses Charges With 3D Printed Antenna
'He realized that it was not quite a clear lens.' - Vernor Vinge, 2001.

Physicist Inspired By SciFi And Seeing Back In Time
'Here is the chronoscope... Scansion depends upon a special curved field...'

 

Google
  Web TechNovelgy.com   

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.

 

 

 

 

 

Current News

Trash Sorting AI Robot Presages Skynet, Thanks A Lot
Keep your head down, Kyle Reese.

Electric Unicycle Is A Tumblebug
'A tumblebug does not give a man dignity, since it is about the size and shape of a kitchen stool, gyro-stabilized on a single wheel.'

Another Soil Bacterium Eats Plastic
'...the plastic was dissolved before his eyes.'

reLive Memorial Come Back As A Tree
'It was time - time to go again. She touched the leaf. She was wanted.'

Engineered Living Building Materials
'... it was the cheapest building material known.'

Draw Circuits With Conductive Ink
'It's rewiring things... squeezing silver toothpaste in a ribbon along the printed circuitry.'

Arkangel: Automatic Visual Censoring
It's whatever the Party says it is, Winston.

NASA Competition To Design A Bucket Drum For Moon Mining
'There was a heap of discarded ore where Grantline had carted and dumped it...'

Medical Assistant Robot May Roam The Halls Of Hospitals
'Take care, sir.'

No Autonomous Trucks? Wait, What?
'...it resembled conventional human-operated transportation vehicles, but with one exception -- there was no driver's cabin.'

As Big As A Biltong - World's Largest 3D Printer
'Huge and old, it squatted in the center of the settlement park... On the concrete platform... lay a heap of originals to be duplicated.'

Drones Used To Smuggle Contraband Into Prison
'And some mega chip inside so it never runs into anything and no cop ever sees it.'

Are You Ready For Commercial Space Travel?
'It wasn't a pleasant trip; it was a miserable trip on a miserable, undersized tourist rocket...'

Amplified Nerves Lead To Mind-Controlled Prosthetic Hands
'The electrical impulses generated by your brain command everything...'

FlyCroTug Micro Drones Do Heavy Lifting
'It extended three of its tiny arms sideways to lock on...'

Virtual Whitney Houston In Concert
Badda-Bing, Badda-Bang

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.