Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent
1997-04-02
1998-10-20
Hantis, K.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
356328, G01J 328
Patent
active
058254862
ABSTRACT:
A spectrophotometer which is highly manufacturable at minimum cost nevertheless provides precision of measurement of spectra components of light which is projected therein by maintaining precise optical alignment of optical and electrical components thereof. These components are mounted in a module which is contained in a housing having an entrance aperture which defines an object area for light the spectrum of which is measured by a photodetector in the module at an image area. The module has a base plate provided by a printed circuit board on which a closed wall encompasses an area (a corral) on one side of the circuit board. The wall is a one piece structure which extends to the vicinity of the edge of the board. It is assembled with the board as a unitary structure so that the assembly is made torsionally rigid and resists bending in the plane of the board. The module may be of sufficiently small size so as to be located in a housing which is hand held, thereby providing a hand-held spectrophotometer.
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D. J Schroeder, J. Opt. Soc. Ameri. 6081022, Aug. 1970.
Eastman Jay M.
Hutchison Robert J.
Zavislan James M.
Hantis K.
Lucid Technologies Inc.
Lukacher K.
Lukacher M.
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