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Researchers developed highly accurate method for measuring luminousefficacy of LEDs



 
 
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Old September 18th 15, 07:11 PM posted to sci.geo.satellite-nav
Sam Wormley[_2_]
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Default Researchers developed highly accurate method for measuring luminousefficacy of LEDs

Researchers developed highly accurate method for measuring luminous
efficacy of LEDs
http://phys.org/news/2015-09-highly-...-efficacy.html


"LED lamps emit light to all directions. In order to measure the
luminous efficacy, we thus use a device called an integrated sphere,
which takes into account light coming from different directions, he
specifies and reminds us that the history of LEDs is still short when
compared to incandescent and fluorescent lamps. Therefore, there is
still little information available on their actual efficacy and
ageing properties. Indeed, it is essential to determine luminous
efficacy as accurately as possible so that such lamps can be
introduced in the market that transform as much electrical energy
into light useful to the human eye as possible."

Read more at:
http://phys.org/news/2015-09-highly-...icacy.html#jCp



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