News tagged with white light
White LEDs with super-high luminous efficacy could satisfy all general lighting needs
(PhysOrg.com) -- Researchers from the Nichia Corporation in Tokushima, Japan, have set an ambitious goal: to develop a white LED that can replace every interior and exterior light bulb currently used in homes ...
Aug 31, 2010 |
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OLED Tunes its Colors for Sunlight-Style Illumination
(PhysOrg.com) -- Scientists have developed a lighting device that can change its color temperature throughout the day, matching the natural daylight chromaticities produced by the sun. Currently, no other ...
Jul 16, 2009 |
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New technique lights up the creation of holograms
Researchers at the RIKEN Advanced Science Institute (Japan) have developed a unique way to create full-color holograms with the aid of surface plasmons.
Mar 19, 2012 |
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Massive white dwarf in our galaxy may go supernova
(PhysOrg.com) -- A massive white dwarf star in our galaxy may become a supernova several million years from now, and could damage the Earth and possibly destroy life on Earth.
Jan 07, 2010 |
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Low-cost LEDs to slash household electric bills
A new way of making LEDs could see household lighting bills reduced by up to 75% within five years.
Jan 29, 2009 |
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Cheap, efficient white light LEDs new design
Roughly 20 percent of the electricity consumed worldwide is used to light homes, businesses, and other private and public spaces. Though this consumption represents a large drain on resources, it also presents ...
Apr 07, 2009 |
4.9 / 5 (26) |
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Researchers discover way to create true-color 3-D holograms
(PhysOrg.com) -- Satoshi Kawata, Miyu Ozaki and their team of photonics physicists at Osaka University in Japan, have figured out a way to capture the original colors of an object in a still 3-D hologram by ...
Apr 08, 2011 |
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Berkeley Researchers Light Up White OLEDs
(PhysOrg.com) -- Light-emitting diodes, which employ semiconductors to produce artificial light, could reduce electricity consumption and lighten the impact of greenhouse gas emissions. However, moving this ...
Apr 06, 2010 |
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Astronomers identify 12-billion-year-old white dwarf stars
A University of Oklahoma assistant professor and colleagues have identified two white dwarf stars considered the oldest and closest known to man. Astronomers identified these 11- to 12-billion-year-old white dwarf stars only ...
Apr 11, 2012 |
4.7 / 5 (18) |
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High-quality white light produced by four-color laser source
(PhysOrg.com) -- The human eye is as comfortable with white light generated by diode lasers as with that produced by increasingly popular light-emitting diodes (LEDs), according to tests conceived at Sandia ...
Oct 26, 2011 |
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Engineers ride 'rogue' laser waves to build better light sources
A freak wave at sea is a terrifying sight. Seven stories tall, wildly unpredictable, and incredibly destructive, such waves have been known to emerge from calm waters and swallow ships whole. But rogue waves ...
Mar 05, 2009 |
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Obama to announce new car efficiency standards
US President Barack Obama will later this week unveil new fuel efficiency standards for passenger cars and light trucks for the 2017-2025 period, the White House said Wednesday.
Technology / Energy & Green Tech
Jul 27, 2011 |
4.8 / 5 (9) |
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Quantum dots brighten the future of lighting
(Phys.org) -- With the age of the incandescent light bulb fading rapidly, the holy grail of the lighting industry is to develop a highly efficient form of solid-state lighting that produces high quality white ...
Nanotechnology / Nanomaterials
May 08, 2012 |
4.8 / 5 (8) |
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Hinode Discovers the Origin of White Light Flare
(PhysOrg.com) -- A joint Japan-United States research team has identified the origin of the white light emission in solar flares.
May 20, 2010 |
4.9 / 5 (7) |
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Team finds Type Ia supernovae parents
Type Ia supernovae are violent stellar explosions whose brightness is used to determine distances in the universe. Observing these objects to billions of light years away has led to the discovery that the universe is expanding ...
Aug 11, 2011 |
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