News tagged with lumen
Lumen
Lumen can mean:
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LED closes the yellow gap: Full conversion of blue into amber light by new nitride phosphor
(PhysOrg.com) -- Monochromatic light-emitting diodes cover a large part of the visible spectrum with high effi-ciency. For blue light, nitride diodes achieve external quantum efficiencies in excess of 65%, ...
Jul 23, 2009 |
4.8 / 5 (8) |
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Search results for lumen
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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Samsung announces the Galaxy Beam Smartphone with built-in projector
(PhysOrg.com) -- Cell phones are great, but one of their limitations is the size of the screen, which of necessity has to be small. To get around this problem, engineers have been for years toying with the ...
Electronics / Consumer & Gadgets
Feb 27, 2012 |
4.7 / 5 (14) |
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Soraa LED light may dim 50-watt halogen rivals
(PhysOrg.com) -- Soraa, a Fremont, California company founded in 2008, this week launched its first product, a light that uses LEDS (light emitting diodes). The "Soraa LED MR16 lamp" is the "perfect" replacement ...
Feb 09, 2012 |
4.4 / 5 (27) |
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Researchers light up Europe with LEDs
Novel light-source technology just got a big boost in Europe thanks to the OLED100.eu ('Organic LED (light-emitting diode) lighting in European dimensions') project which tackled the challenge to develop the ...
Jan 17, 2012 |
5 / 5 (2) |
2
Micro-cavity arrays: Lighting the way to the future
It was not too long ago that basic science lectures began with the three forms of matter: gases, liquids and solids—and somewhere along the line plasmas were occasionally added to the list. But to be ...
Nov 17, 2011 |
5 / 5 (2) |
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Columbia grads design solar-pillow lights for global village
(PhysOrg.com) -- World populations who live without electricity including those in disaster-stricken areas in the wake of floods, earthquakes, and other calamities are who two Columbia University graduates ...
Technology / Energy & Green Tech
Nov 16, 2011 |
4.4 / 5 (7) |
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Inadequate supply of protein building blocks may explain pregnancy failures in bovine cloning experiments
Amino acids, the building blocks of proteins, are essential to support the normal growth of a developing embryo and the placenta. An insufficient supply of amino acids in the mother's uterus caused by abnormal ...
Oct 26, 2011 |
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Casio shows off bulbless 3D-capable projectors
(PhysOrg.com) -- Casio is currently showing off a line of lamp free projectors, designed for work in corporate and educational settings. The system eliminates the lamp by relying on a system that combines ...
Electronics / Consumer & Gadgets
Jun 15, 2011 |
3 / 5 (2) |
0
Unlocking the metabolic secrets of the microbiome
The number of bacterial cells living in and on our bodies outnumbers our own cells ten to one. But the identity of all those bugs and just what exactly our relationship to all of them really is remains rather fuzzy. Now, ...
May 03, 2011 |
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Scientists engineer nanoscale vaults to encapsulate 'nanodisks' for drug delivery
(PhysOrg.com) -- There's no question, drugs work in treating disease. But can they work better, and safer?
Nanotechnology / Bio & Medicine
Apr 21, 2011 |
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List of search results for lumen
