Multiple Optical Beam Folding Apparatus and Method
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United States of America Patent
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Issued Date -
Jan 31, 2013
app pub date -
Oct 8, 2012
filing date -
Dec 13, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A multiple optical beam folding apparatus for directing optical energy includes two or more radiation collectors configured to direct radiant energy through two or more independent optical paths to a shared focal plan array (FPA). The radiation collectors may include one or more gas cells or vacuum cells. One or more of the two or more optical paths may include a Galilean telescope. First and second reflecting surfaces are positioned in each of the two or more independent optical paths. The first reflecting surfaces are distinct reflecting surfaces from the second reflecting surfaces and the first and second reflecting surfaces are configured to direct the radiant energy of their respective independent optical paths to the FPA. The two or more second reflecting surfaces may be distinct surfaces of a pyramidal mirror.
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