Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1995-03-06
1996-12-03
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
25033905, 25033906, 25033911, 25033912, G01N 2135
Patent
active
055810853
ABSTRACT:
This invention is an apparatus and method for infrared spectroscopic or radiometric analysis of microscopic samples of solids or liquids, combining external- or internal-reflection spectroscopy with visible-radiant energy viewing of microscopic samples by integrated video microscopy. This is an accessory to Fourier-transform-infrared spectrometers for the chemical analysis of microscopic samples in specular, diffuse, reflection-absorption (transflection), or internal-reflection spectroscopy. This apparatus combines an all-reflective, infinity-corrected optical system with an integrated, dedicated, video viewing system. The magnification optic is an all-reflecting optic designed to focus a collimated beam of radiant energy onto the sample, collect the reflected radiant energy, and (through the appropriate optics) present that energy to a detector means for spectral analysis. The modified Schwarzchild all-reflecting objective lens also provides a magnified image of the microscopic sample, which is detected by an integrated video imaging system.
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Reffner John A.
Wihlborg William T.
Hannaher Constantine
Spectra-Tech Inc.
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