Resumes
Resumes
Jon Carnahan Phones & Addresses
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121 High St, Sycamore, IL 60178 (773) 720-5970 (815) 895-7595 (815) 895-8820
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1008 Vienna Blvd, Dekalb, IL 60115
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Cincinnati, OH
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121 W High St, Sycamore, IL 60178 (773) 720-5970
Work
Position:
Machine Operators, Assemblers, and Inspectors Occupations
Education
Degree:
High school graduate or higher
Emails
Publications
Us Patents
Acousto-Optic Spectral Manipulator
View pageUS Patent:
54346665, Jul 18, 1995
Filed:
Feb 25, 1994
Appl. No.:
8/201642
Inventors:
Jon W. Carnahan - Sycamore IL
Brian A. Pelz - Crystal Lake IL
Brian A. Pelz - Crystal Lake IL
Assignee:
Northern Illinois University - Debalb IL
International Classification:
G01J 318
US Classification:
356328
Abstract:
A spectrometer is adapted to observe discrete wavelengths or spectral regions of a sample. The spectrometer includes a light source having spectral characteristics depending on the presence of a sample. A disperser consists of a chamber housing a diffraction grating in spaced relation to the light source and an entrance slit associated with the chamber for directing light from the source in a light path to be dispersed by the grating. An acousto-optic device is mounted in the chamber in the light path so that light traverses the device. A power supply applies an acoustic frequency to the acousto-optic device to set up a variation in refractive index within the acousto-optic device to deflect traversing light. A detector associated with the chamber is positioned relative to the grating to sense the presence of light where it appears after dispersion and to rapidly detect discrete wavelengths or spectral regions of the light.