Optics: measuring and testing – For optical fiber or waveguide inspection
Patent
1982-03-31
1985-03-19
Evans, F. L.
Optics: measuring and testing
For optical fiber or waveguide inspection
356417, 356418, 356419, G01N 2127, G01N 2164
Patent
active
045055831
ABSTRACT:
In a spectroscopic analyzer, light emitted from a light source is spectroscopically divided into a series of light rays of different wavelength by means of plural sets of interference filter for two-wavelength photometry adapted to intermittently and successively intercepting light from the light source or to be scanned by the light through a rotatable slit. An object under test is irradiated sequentially by the series of light rays transmitted through an optical fiber bundle. Reflected light rays carrying informations of the object are sequentially applied to photoelectric converter. Electric signals thus produced are digitized and arithmetically processed for obtaining a plurality of data corresponding to the plural sets of the interference filters.
REFERENCES:
patent: 3825342 (1974-07-01), Lubbers et al.
patent: 3963351 (1976-06-01), Chance et al.
patent: 4180327 (1979-12-01), Maeda et al.
patent: 4300689 (1981-11-01), Franklin et al.
patent: 4340307 (1982-07-01), Diamond et al.
Evans F. L.
Kice Warren B.
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