Optics: measuring and testing – For optical fiber or waveguide inspection
Patent
1992-04-10
1994-08-09
Evans, F. L.
Optics: measuring and testing
For optical fiber or waveguide inspection
356417, 356418, 356414, 2504611, G01N 2159, G01N 2164
Patent
active
053371399
ABSTRACT:
A multichannel optical measuring system for measuring optical responses of samples illuminated by light of differing wavelengths has a plurality of measurement sample cuvettes each contain a sample to be measured. A first single light source provides a first illumination light. A plurality of sets of optical fibers direct the first illumination light from the first single light source to illuminate, along an optical axis, the samples contained in respective sample cuvettes. A second light source is provided for illuminating each respective sample cuvette with a second illumination light for measuring an intensity of transmitted light through the sample. The optical axis of the second illumination light is perpendicular to the optical axis of the first illumination light. A common photosensor disposed on the optical axis of the second light source measures the intensity of the first illumination light and the intensity of the transmitted light from each sample. Thus, the multichannel optical measuring system can simultaneously measure both the intensity of a first illumination light from a single light source, and the intensity of light transmitted through each sample, for a plurality of samples.
REFERENCES:
patent: 4738534 (1988-04-01), Houseman et al.
Karjalainen et al, Journal of Physics E, vol. 7, No. 4 Apr. 1974, pp. 241-243.
Adams Bruce L.
Evans F. L.
Kowa Company Ltd.
Wilks Van C.
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