Optics: measuring and testing – For optical fiber or waveguide inspection
Patent
1977-10-31
1979-12-11
McGraw, Vincent P.
Optics: measuring and testing
For optical fiber or waveguide inspection
356308, G01N 2100, G01J 306
Patent
active
041780990
ABSTRACT:
A wide field of view is scanned to determine spectral and positional infotion of a point source of optical radiation. The wide field of view is optically scanned by a scanner having an instantaneous narrow field of view to sequentially direct radiation from successive scanned portions of the field onto a detector included in an image plane of radiation. An optical dispersion means for the radiation is provided in a first optical path that includes the scanning means and the detector. A second optical path between the source and detector includes the scanning means, but does not include the dispersion means. The dispersion means and the scanning means cause a convolution of spectral energy from the source in the image plane, resulting in a displacement of the relative occurrence times, during a scan, of a wavelength of the radiation as it impinges on the image plane via the two optical paths. A processing circuit measures the displacement, amplitude and spectral content to provide a visual indication of the angular position of the radiation source. The use of two optical channels also provides a simplified cross correlation system for comparison of spectral sources with respect to a reference.
REFERENCES:
patent: 3971921 (1976-07-01), Schmit et al.
patent: 3992101 (1976-11-01), Dapper et al.
Edelberg Nathan
Goldberg Edward
McGraw Vincent P.
Murray Jeremiah G.
The United States of America as represented by the Secretary of
LandOfFree
Scanning optical spectral analyzer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Scanning optical spectral analyzer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scanning optical spectral analyzer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-308457