Macro Area Camera for an Infrared (IR) Microscope
First Claim
1. An Infrared (IR) microscope, comprising:
- a reflective objective configured with a primary and a secondary mirror, wherein said primary and said secondary mirrors causes incoming (IR) radiation to focus at a sample plane after passing through said reflective objective to form sample induced narrow field-of-view imaging information; and
an arrayed camera coupled to said secondary mirror so as to provide a wide field-of-view for targeting regions of said sample, wherein said camera'"'"'s optical axis is further configured to be collinear with the optical axis of the incoming (IR) radiation but outside the optical path that provides the incoming (IR) narrow field-of-view imaging and spectroscopic information.
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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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Citations
10 Claims
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1. An Infrared (IR) microscope, comprising:
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a reflective objective configured with a primary and a secondary mirror, wherein said primary and said secondary mirrors causes incoming (IR) radiation to focus at a sample plane after passing through said reflective objective to form sample induced narrow field-of-view imaging information; and an arrayed camera coupled to said secondary mirror so as to provide a wide field-of-view for targeting regions of said sample, wherein said camera'"'"'s optical axis is further configured to be collinear with the optical axis of the incoming (IR) radiation but outside the optical path that provides the incoming (IR) narrow field-of-view imaging and spectroscopic information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification