Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrophotometer
Patent
1989-06-05
1991-09-17
McGraw, Vincent P.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrophotometer
356381, G01J 342, G01B 1186
Patent
active
050489607
ABSTRACT:
A method of and an apparatus for obtaining spectral data and calculating corrected spectral data. The method includes the steps of: obtaining spectral data S'(.lambda.) which is representative of the spectral characteristics of light which is generated by a light source and reflected by an object; substantially concurrently with the step of obtaining the spectral data S'(.lambda.), obtaining spectral data R(.lambda.) which is representative of the spectral characteristics of light which is generated by the light source; and calculating corrected spectral data S(.lambda.) as a function of the spectral data S'(.lambda.) and the spectral data R(.lambda.).
REFERENCES:
patent: 4802763 (1989-02-01), Gerlinger et al.
patent: 4844617 (1989-07-01), Kelderman et al.
European Patent Application-82110785.1-Kishner et al.
Fujiwara Nariaki
Hayashi Takahisa
Dainippon Screen Mfg Co., Ltd
Keesee LaCharles P.
McGraw Vincent P.
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