News tagged with camera
Trillion-frame-per-second video
By using optical equipment in a totally unexpected way, MIT researchers have created an imaging system that makes light look slow.
Dec 13, 2011 |
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In distance space, a water world: Hubble reveals a new class of extrasolar planet
(PhysOrg.com) -- An international team of astronomers led by Zachory Berta of the Harvard-Smithsonian Center for Astrophysics (CfA) made the observations of the planet GJ 1214b.
Feb 21, 2012 |
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Pixel perfect: Cornell develops a lens-free, pinhead-size camera
(PhysOrg.com) -- It's like a Brownie camera for the digital age: The microscopic device fits on the head of a pin, contains no lenses or moving parts, costs pennies to make – and this Cornell-developed ...
Jul 06, 2011 |
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Tomb exploration reveals first archaeological evidence of Christianity from the time of Jesus
The archaeological examination by robotic camera of an intact first century tomb in Jerusalem has revealed a set of limestone Jewish ossuaries or "bone boxes" that are engraved with a rare Greek inscription and a unique iconographic ...
Other Sciences / Archaeology & Fossils
Feb 28, 2012 |
4 / 5 (24) |
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Start up creates a 'no-focus' point and shoot camera
(PhysOrg.com) -- If you have ever used a "Point and Shoot" style of camera in the last few years then you know that that term is a misnomer because unless you are using a disposable camera you are going to ...
Technology / Hi Tech & Innovation
Jun 22, 2011 |
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Scientists discover new water waves
(PhysOrg.com) -- By precisely shaking a container of shallow water, researchers have observed wave behavior that has never been seen before. In a new study, Jean Rajchenbach, Alphonse Leroux, and Didier Clamond ...
Jul 19, 2011 |
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World's largest 3.2 billion-pixel digital camera project passes critical milestone
A 3.2 billion-pixel digital camera designed by SLAC National Accelerator Laboratory is now one step closer to reality. The Large Synoptic Survey Telescope camera, which will capture the widest, fastest and ...
Apr 24, 2012 |
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Eye of Gaia: Billion-pixel camera to map Milky Way
The largest digital camera ever built for a space mission has been painstakingly mosaicked together from 106 separate electronic detectors. The resulting "billion-pixel array" will serve as the super-sensitive ...
Jul 06, 2011 |
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New camouflage technology from BAE hides war machines
(PhysOrg.com) -- BAE Systems says it has a camouflage system that can render battle machines like tanks invisible or even seen as other objects in the immediate environment to protect against attack. The 'cloak' ...
Sep 07, 2011 |
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World's first 'live' video feed of Earth from space
(PhysOrg.com) -- The world's first high definition streaming video camera to be installed on the International Space Station (ISS) has been announced by David Willetts, Minister for Universities and Science ...
Space & Earth / Space Exploration
Jul 05, 2011 |
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Clever math could enable a high-quality 3-D camera for cellphones
When Microsoft’s Kinect -- a device that lets Xbox users control games with physical gestures -- hit the market, computer scientists immediately began hacking it. A black plastic bar about 11 inches wide ...
Jan 06, 2012 |
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Opportunity begins study of martian crater, new samples 'unlike any seen before'
(PhysOrg.com) -- The initial work of NASA's Mars rover Opportunity at its new location on Mars shows surface compositional differences from anything the robot has studied in its first 7.5 years of exploration.
Space & Earth / Space Exploration
Sep 02, 2011 |
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Adobe shows off new 'undo photo blur' feature
(PhysOrg.com) -- Despite all the advances in digital photography, most people are still plagued by the problem of blurry photos, a problem compounded by the use of cameras embedded in cell phones due to their small size. ...
Oct 13, 2011 |
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New generation of superlattice cameras add more 'color' to night vision
Recent breakthroughs have enabled scientists from the Northwestern University's Center for Quantum Devices to build cameras that can see more than one optical waveband or "color" in the dark. The semiconducting material used ...
Oct 20, 2011 |
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Hubble pinpoints furthest protocluster of galaxies ever seen
(PhysOrg.com) -- Using the NASA/ESA Hubble Space Telescope, astronomers have uncovered a cluster of galaxies in the initial stages of development, making it the most distant such grouping ever observed in ...
Jan 10, 2012 |
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Camera
A camera is a device that records images, either as a still photograph or as moving images known as videos or movies. The term comes from the camera obscura (Latin for "dark chamber"), an early mechanism of projecting images where an entire room functioned as a real-time imaging system; the modern camera evolved from the camera obscura.
Cameras may work with the light of the visible spectrum or with other portions of the electromagnetic spectrum. A camera generally consists of an enclosed hollow with an opening (aperture) at one end for light to enter, and a recording or viewing surface for capturing the light at the other end. A majority of cameras have a lens positioned in front of the camera's opening to gather the incoming light and focus all or part of the image on the recording surface. The diameter of the aperture is often controlled by a diaphragm mechanism, but some cameras have a fixed-size aperture.
A typical still camera takes one photo each time the user presses the shutter button. A typical movie camera continuously takes 24 film frames per second as long as the user holds down the shutter button.
For more information about Camera, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
