Balloon envelope adapted to direct sunlight towards payload
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United States of America Patent
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Sep 16, 2014
Grant Date -
N/A
app pub date -
Sep 28, 2012
filing date -
Sep 28, 2012
priority date (Note) -
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Abstract
A balloon is provided having an envelope, and a payload positioned beneath the envelope, wherein the envelope has an exterior shape adapted for directing sunlight towards the payload. The balloon may further include a control system configured to cause the balloon or payload to rotate to cause a first portion of the balloon envelope or a first portion of the payload to be positioned facing the sun. The first portion of the balloon envelope may be asymmetrical with respect to a second portion of the balloon envelope, with the first portion angled to direct sunlight towards the payload. The balloon envelope may include a transmissive or translucent surface adapted to direct sunlight towards a lower portion of the envelope, which in turn is adapted to direct sunlight onto the payload. The balloon may also be lens-shaped to focus sunlight onto the payload.
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