'Forever' Camera Powered By Its Own Images

A camera that is able to power itself from the light that it gathers for pictures has been created by researchers at Columbia University. The camera could, in theory, run forever, taking pictures for eternity.


(Computer Vision Lab, Columbia University)

“We are in the middle of a digital imaging revolution,” says Nayar, who directs the Computer Vision Laboratory at Columbia Engineering. He notes that in the last year alone, approximately two billion cameras of various types were sold worldwide. “I think we have just seen the tip of the iceberg. Digital imaging is expected to enable many emerging fields including wearable devices, sensor networks, smart environments, personalized medicine, and the Internet of Things. A camera that can function as an untethered device forever—without any external power supply—would be incredibly useful.”

A leading researcher in computational imaging, Nayar realized that although digital cameras and solar panels have different purposes—one measures light while the other converts light to power—both are constructed from essentially the same components. At the heart of any digital camera is an image sensor, a chip with millions of pixels. The key enabling device in a pixel is the photodiode, which produces an electric current when exposed to light. This mechanism enables each pixel to measure the intensity of light falling on it. The same photodiode is also used in solar panels to convert incident light to electric power. The photodiode in a camera pixel is used in the photoconductive mode, while in a solar cell it is used in the photovoltaic model.

Nayar, working with research engineer Daniel Sims BS’14 and consultant Mikhail Fridberg of ADSP Consulting, used off-the-shelf components to fabricate an image sensor with 30x40 pixels. In his prototype camera, which is housed in a 3D printed body, each pixel’s photodiode is always operated in the photovoltaic mode.

The pixel design is very simple, and uses just two transistors. During each image capture cycle, the pixels are used first to record and read out the image and then to harvest energy and charge the sensor’s power supply—the image sensor continuously toggles between image capture and power harvesting modes. When the camera is not used to capture images, it can be used to generate power for other devices, such as a phone or a watch.

A camera that can take pictures well into the future? Consider the Agfom potent shot camera, from Philip K. Dick's 1964 novel Clans of the Alphane Moon:

A bright light seared in to being, vanished; Chuck, blinded, peered and then saw, standing in the center of the room with a camera in his hands, a man he recognized. Recognized and disliked.

"Hello, Chuck," Bob Alfson said... "This film I'm using - I'm sure you've run across it at CIA; it's expensive, but helpful." He explained to both Chuck and Joan. "I've just taken an Agfom potent-shot. Does that strike a chord? What I have in this camera is not a record of what you did just now but what will go on here in the next half hour..."
(Read more about the Agfom potent shot film)

Via Columbia, with thanks to frolix_8.

Scroll down for more stories in the same category. (Story submitted 4/12/2015)

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 - (" Surveillance ")

RFID Chipped Employees Of Three Square Market
'About a third of the people in Manhattan have replaced their Freedom Card with a radio-frequency chip...' - John Twelve Hawks, 2015.

SkEye Amazing Israeli Gigapixel Drone
'An eye that could not only see, but fly...' - Manly Wade Wellman, 1938.

Cyborg DragonflEye At Your Command
'The dragonfly responded like a toy airplane, taking off and heading east...'

Bat Bot Robotic Flapping-Wing Drone
'The dark birdforms dotted the mountaintops like statues of prehistoric beasts, wings outspread...' - Roger Zelazny, 1980.

 

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

RFID Chipped Employees Of Three Square Market
'About a third of the people in Manhattan have replaced their Freedom Card with a radio-frequency chip...'

JAXA's Int-Ball Drone To Follow Astronauts In Space Station
'I want you to build me some of those.'

Amazon Patents Annoying Robot That Follows You
'The... machine, being homotropic, headed toward them, still bleating...'

Hand Gestures And Body Poses Control Devices
'He waved his hand... the circuit switched...'

Rovable Robots Crawl Across Your Body
'Most of the crew have the tiny imp ride on their shoulder...'

Sansar Social Virtual Reality Platform In 2017?
'And just as a daydreamer forgets his actual surroundings, and sees other realities...'

Cellphone Harvests Power From Ambient Radio Signals And Light
A battery-free phone.

Desktopography Makes Virtual Desktops Real
'Ender doodled on his desk, drawing contour maps of mountainous islands and then telling his desk to display them in three dimensions...'

LaWS Laser Can Take Out Rogue Drones
Looks like a weapon for the Runaway squad!

Moon Express Lunar Robot Mining: Shine On, Harvest Moon
'The bulldozer moved through the lunar strip mine... '

Liquid Body Armor For TALOS Exoskeleton
'... instantly became rigid all over when something struck it...'

Hyperloop One Video Shows It Works!
'Complete evacuation of the interior of the tubes [and] a wave that provides the new propulsive energy for the cars...'

Chairless Chair Exoskeleton By Sapetti
'Earth's scientists... devised rigid metallic clothing...'

Publishing Technologies In Science Fiction
Well, this should be enough references to start...

Russia Working On Military Exoskeletons
'Вы похожи на большую стальную гориллу...'

3D Printed Bionic Chinese Skin
Your skin is ready!

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.