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Alvin's new green LED light and red lasers.

Alvin's new green LED light and red lasers.
Alvin's new green LED light and red lasers.
Alvin's new green LED light and red lasers.
Alvin's new green LED light and red lasers.
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73292
Zafereo, Anton
Alvin's new green LED light and red lasers.
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04/18/2006
zafereo-alvin_basket.jpg
Image of The Day caption:
A new light-emitting diode (LED) system--built by Deep Sea Power & Light--was recently tested on the Alvin submersible during engineering dives in June off San Diego. The green lights appear to help pilots when the water is murky with particulate matter; the light does not necessarily penetrate farther, but there is less reflection than with white lights. The LEDs use about one-tenth of the power consumed by traditional Xenon, leaving more battery power for other things.
Photo by Anton Zafereo
© Woods Hole Oceanographic Institution
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