News tagged with camera
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 |
4.4 / 5 (20) |
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Raspberry Pi to add camera later this year
(Phys.org) -- The Raspberry Pi, a uniquely priced, no casing computer that plugs into your TV and a keyboard., will be given a camera accessory later this year. That may be “oh-so-what” news if this ...
May 22, 2012 |
5 / 5 (4) |
1
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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 |
4.8 / 5 (24) |
24
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New method to examine batteries -- MRI from the inside
There is an ever-increasing need for advanced batteries for portable electronics, such as phones, cameras, and music players, but also to power electric vehicles and to facilitate the distribution and storage of energy derived ...
Chemistry / Analytical Chemistry
Feb 12, 2012 |
4.5 / 5 (10) |
0
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OrcaM is new kid on block for 3-D data capture
(PhysOrg.com) -- Call it automated photograph station, seven-camera system, 3-D model showcase, or digital reconstruction tool. OrcaM is being described as all these things. Whatever the tag, the "OrcaM" name ...
Technology / Hi Tech & Innovation
Jan 21, 2012 |
4.7 / 5 (10) |
19
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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 |
4.8 / 5 (12) |
42
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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 |
4.8 / 5 (13) |
8
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Close encounters: When Daniel123 met Jane234 (w/ video)
(PhysOrg.com) -- Qbo robots created a stir recently when their developers succeeded in demonstrating that a Qbo can be trained to recognize itself in the mirror. Now the developers have taken their explorations ...
Jan 04, 2012 |
4.1 / 5 (8) |
4
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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 |
4.8 / 5 (41) |
30
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Opportunity rover finds mineral vein deposited by water
(PhysOrg.com) -- NASA's Mars Exploration Rover Opportunity has found bright veins of a mineral, apparently gypsum, deposited by water. Analysis of the vein will help improve understanding of the history of ...
Space & Earth / Space Exploration
Dec 08, 2011 |
4.5 / 5 (12) |
5
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Kinecthesia: Students hack Kinect to help visually impaired (w/ video)
(PhysOrg.com) -- Despite amazing advances in computers and cameras, people with serious visual impairments are often aided with the most basic technology imaginable: a cane.
Technology / Hi Tech & Innovation
Nov 15, 2011 |
5 / 5 (5) |
2
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'Sound of Football' project allows blind to play football (w/ video)
(PhysOrg.com) -- In a show of just how far Smartphone technology has come, a new group funded by the Pepsi Refresh Project, has put together various technologies that allow blind people to play football using ...
Technology / Computer Sciences
Nov 11, 2011 |
5 / 5 (5) |
2
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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 |
4.9 / 5 (12) |
1
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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 |
4.3 / 5 (14) |
17
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Reach out and touch 3D characters with RePro3D (w/ video)
(PhysOrg.com) -- Lonely gamers who have felt the pain of being separated by a screen from their favorite personalities now have a way to reach out and touch their game characters, and that new way is RePro3D. ...
Technology / Hi Tech & Innovation
Sep 17, 2011 |
4.3 / 5 (7) |
4
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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.
