The researchers then measured the amount of light, or radiance, present in each unit of the grid.
Using the least amount of light possible to get around helps avoid disturbing the body's circadian clock.
Compact fluorescents use about one-third as much electricity as incandescent bulbs to produce the same amount of light.
That means a smaller area of cell can be used to convert a given amount of light into electricity.
They used the telescope to find the baseline brightness, then look at the data when the amount of light decreases.
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It's quieter and you'll have more control over the amount of light surrounding you, particularly with your own window shade.
The spectrometers will also measure properties including molecular weight, electrical charges and the amount of light absorbed at different wavelengths.
Since aperture plays a part in exposure, it's important to understand "stops of light, " a measurement of the amount of light entering the camera.
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The Finnish firm claimed that "floating lens technology" meant the handset could capture up to 10 times the amount of light than other handsets.
Here, plastics that are black to the eye actually reflect a reasonable amount of light, so it is possible to get a meaningful absorption spectrum.
The Helieon emits the same amount of light as a 60 watt incandescent bulb but uses just a fraction of the electricity needed to do so.
He says that the FCC paper is only talking about the amount of light that's transmitted to the device, not the efficiency of the device itself.
One stop of light is usually defined as halving or doubling the amount of light entering the camera, depending on the shutter speed, aperture, or ISO changes made.
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Together, these researchers have found a way to measure the amount of light pollution around using satellite data, thereby creating the world's first atlas of light and darkness.
The keyboard also uses proximity detection to turn on the lighting when your hands approach it, and automatically dims or brightens, depending on the amount of light in the room.
One way to control this process is to use two beams that, when they cross, double the amount of light in a spot, and thus cause the liquid to solidify faster.
Quantum dots are tiny structures made of semiconductors whose size determines, again through rules set by quantum mechanics, exactly what colour and amount of light they produce - and how often they produce it.
These are able to measure the spectrum of the light reflected from a cloud so accurately that Dr Rosenfeld could deduce the average size of its water droplets from the amount of light that they reflected.
By comparing the amount of light in each unit of the grid with reliable sources of economic data from advanced economies, Chen and Nordhous established a clear and compelling relationship between radiance levels at night and GDP.
After sampling waters from the Pacific, Atlantic and Indian oceans at all latitudes, they found that the amount of AAPB in the water is controlled mainly by the level of planktonic algae in the region, rather than by the amount of light.
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"It is not trivial to make the necessary amount of laser light at a specific wavelength, " Robicheaux said.
Pebble will reflect even a small amount of ambient light, however, so your backlight usage is likely to be fairly minimal.
To capture the most amount of available light, users can also activate consecutive shot combining technology, or use the HDR effect for a wide dynamic range image.
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The advance provides evidence to support a controversial idea, called multiple-exciton generation (MEG), which theorizes that it is possible for an electron that has absorbed light energy, called an exciton, to transfer that energy to more than one electron, resulting in more electricity from the same amount of absorbed light.
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It will be the first on the market that reaches that level of efficiency and functions across a normal range of temperatures and is capable of consistently producing the same amount of warm white colored light as comparable fluorescent tubes.
Although the exact mechanism is still not entirely understood, it turns out that illuminating the liquid crystal, applying a voltage across a small region of it, and then turning off the light source causes a small amount of charge to be stored in that region.
The main ingredient is a small amount of mercury, which is placed inside a strong yet light container made of a composite material such as Kevlar.
In Dr Attari's study, for example, the survey provided a reference measure by stating the amount of energy used by a standard light bulb.
In addition, the Mood Lamp creates a soft, environment-enhancing lighting effect, while the Smart Sensor analyzes the amount of illumination being provided by ambient light sources.
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"There's a substantial amount of fisheries work that's not actually going to see the light of day until after the court case is resolved, " USF's Murawski said.
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