INFRARED UP-CONVERSION TELESCOPE
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United States of America Patent
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Issued Date -
Dec 17, 2015
app pub date -
Jan 31, 2014
filing date -
Jan 31, 2013
priority date (Note) -
Abandoned
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Abstract
There is presented to an up-conversion infrared telescope (110) arranged for imaging an associated scene (130), wherein the up-conversion infrared telescope (110) comprises a non-linear crystal (120) arranged for up-conversion of infrared electromagnetic radiation, and wherein a first optical component (101) has an entrance pupil with a first diameter D 1, and an optical component system which is arranged for forming an first image (136) of the back-focal plane (132) of the objective optical component (100), which has a diameter (given by the diameter of a circle enclosing all optical paths at the plane of the external image) which is denominated D2 and wherein D1 is larger than a second diameter D2 and wherein the telescope further comprises a third optical component (103) and a fourth optical component (104) arranged for re-imaging the first image into a second image of the back-focal plane (132) of the first optical component (101).
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