Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent
1979-04-03
1981-03-31
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
G01J 320
Patent
active
042590140
ABSTRACT:
An optical fiber polychromator for separating light radiation into spectral bands which can be simultaneously displayed in a stacked, two-dimensional non-overlapping arrangement. Light radiation is directed through entrance slits into a Rowland Circle spectrometer apparatus by optical fibers which are arranged at discrete locations on an entrance focal plane. The radiation is separated into spectral windows or bands which are focused in parallel onto the target of a vidicon detector. The discrete entrance locations are defined in accordance with column and row coordinates of a matrix in the entrance focal plane wherein the column and row coordinates are separated by predetermined distances dependent upon the dimensions of the detector target and the entrance slits. The entrance locations are arranged so that no two locations have the same row or column coordinate whereby the desired parallel, non-overlapping distribution of spectral bands is achieved.
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patent: 3880523 (1975-04-01), Thomas
patent: 4012147 (1977-03-01), Walrafen
patent: 4054389 (1977-10-01), Owen
Combes et al., Applied Optics, vol. 7, No. 5, May 1968, pp. 857-859.
Loseke et al., Applied Spectroscopy, vol. 25, No. 1, 1971, pp. 64-70.
Jamar, Nouv. Rev. Optique, t. 7, No. 1, Jan.-Feb. 1976, pp. 53-56.
Evans F. L.
Princeton Applied Research Corporation
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