The phrase "efficiency of light" is correct and usable in written English.
You could use it when talking about the amount of energy or power that light produces compared to the amount of energy needed to produce it. For example: "The efficiency of light is necessary in order to generate enough power for daily use."
The bill already includes a measure for modestly increasing the mandated efficiency of light trucks, including sport utility vehicles, light trucks and minivans.
Solar electricity, on the other hand, has become inexpensive, in part because the price of solar panels has fallen at the same time that the efficiency of light bulbs and appliances has dramatically increased.
By contrast, the American Council for an Energy-Efficient Economy estimates that gradually raising the fuel efficiency of light trucks and cars to 35 miles per gallon would save 1.5 million barrels a day in 2010 and 4.5 million barrels a day by 2020 -- up to seven times what the refuge could produce.
The most obvious are increasing the efficiency of light emitters, detectors and solar cells.
Unsurprisingly, K, the efficiency of light utilisation is only a few percent.
Through enhancing the efficiency of light absorbance, the number of photoexcited charge carriers will be increased.
The company, which is the world's third-largest chip maker, said that its researchers have succeeded in increasing the efficiency of light-emitting silicon 100-fold, for the first time making it comparable with conventional light-emitting diode materials like gallium arsenide.
In order to compare the efficiency of light-trapping, two device structures were fabricated.
Efficiency of light-to-current conversion is particularly important for solar cell applications.
The high efficiency of light-to-heat transformation of the nanoscale agents is the most important factor for PTT [10].
This approach limits the output power and efficiency of light-emitting diodes (LEDs), particularly in the green spectrum.
