Increased efficiency LED

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United States of America Patent

PATENT NO 5705834
SERIAL NO

08644654

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In an LED a large portion of the light produced is lost due to total internal reflection at the air-semiconductor interface. A reverse taper of the semiconductor is used to change the angle at which light strikes the interface so that a greater portion of the light is transmitted.

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Patent Owner(s)

  • THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Egalon, Claudio O Hampton, VA 13 184
Rogowski, Robert S Yorktown, VA 8 134

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