Macro Area Camera for an Infrared (IR) Microscope
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United States of America Patent
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Issued Date -
Dec 6, 2012
app pub date -
Jun 1, 2011
filing date -
Jun 1, 2011
priority date (Note) -
Abandoned
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Abstract
A novel arrangement of Schwarzschild Cassegrainian objective coupled with a far-field visible imaging system that does not interfere with the interrogating (IR) beam is introduced. Typical (IR) microscopes that incorporate a Cassegrainian objective have difficulty in locating desired target sample regions based on the inherent limited field-of-view. Because commonly applied visible imaging accessories upstream must use the same numerical aperture based on the reflective geometry, such systems also suffer a limited field of view. To overcome such difficulties, the novel embodiments herein involve placing a visible camera with its optical axis collinear with the IR and primary visible beampath of the microscope but outside the optical path that provides the (IR) image magnification.
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