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Achieve HDTV energy efficiency with photosensors

Posted: 19 Nov 2009     Print Version  Bookmark and Share

Keywords:photosensors  HDTV energy efficiency  electricity 

Have you ever thought about street lamps? They are off during the day; but as dusk falls, they turn on. We no longer rely on lamplighters to stroll through the town in the evening turning them on, and then off again in the morning.

Instead, electrical components known as "photosensors" detect the amount of light in the sky, and automatically turn the lamps on in the evening and off in the morning. These simple little components save a lot of electricity that would be wasted if the lamps were simply left on all day.

The same principle can be applied to your TV, saving a measurable amount of electricity every month. And when you multiply these savings by the millions and millions of TVs in use worldwide, the savings can make a big difference.

Energy consumption is growing worldwide. The statistics are staggering, but it boils down to this: The vast majority of our energy comes from the burning of fossil fuels: coal, oil and natural gas. This releases into the atmosphere an enormous amount of carbon dioxide, which many scientists believe is a significant greenhouse gas that contributes to global warming. The effects or existence of global warming can be debated for hours, but we do know this: We need to slow down our consumption of fossil fuels to help make our resources last longer while working on developing renewable energy sources—such as biofuels, wind and solar—to replace our traditional fuels.

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