Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent
1995-05-30
1996-09-24
Hantis, K.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
G01J 328
Patent
active
055595979
ABSTRACT:
An optical spectrograph utilizes a plurality of holographic transmission optical gratings operative to receive an incoming source of light to be analyzed and diffract the light such that different spectral components impinge upon spatially separated regions of an opto-electronic detector. Various grating configurations are disclosed, including a physical stack of gratings conducive to extreme compactness, as well as a spaced-apart configuration used to preclude spectral cross talk in certain configurations. Diverging light emerging from a fiber-optic bundle is collimated by a first lens assembly prior to passing through the gratings, and a second lens assembly is used to focus the diffracted light onto the detectors, preferably in the form of a two-dimensional CCD array.
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Kaiser Optical Systems, Inc. Brochure "Holospec f/1.8i" VPM System, Date Unknown.
Lerner et al, "Direct Reading Spectrometer Optimization Using Two Complementary Concave Holographic Gratings" SPIE, vol. 503, 1984, pp. 53-58.
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Battey David E.
Owen Harry
Tedesco James M.
Hantis K.
Kaiser Optical Systems, Inc.
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