G - Physics – 01 – N
Patent
G - Physics
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G01N 21/17 (2006.01) G01B 11/06 (2006.01) G01N 21/31 (2006.01) G01N 21/35 (2006.01) G01N 21/64 (2006.01) G01N 21/88 (2006.01) G01N 21/94 (2006.01) G01J 3/12 (2006.01) G01N 21/21 (2006.01) G01N 21/59 (2006.01) G01N 21/84 (2006.01) G01N 21/93 (2006.01)
Patent
CA 2133307
2133307 9322655 PCTABScor01 A scanning system (10) for inspecting a surface (16) including a light source (30) which generates a beam of light (32) that is reflected, scattered or causes fluorescence at the surface to be inspected. An optical interface (14) receives the beam of light and directs it along a predetermined path extending to and from the surface. An acousto-optic tunable filter (34) tuned to pass light having a wavelength corresponding to a known optical property of a predetermined material is positioned within the path of light. A detector (42) is positioned to receive light emanating from the surface and is configured to monitor the intensity of light at each predetermined wavelength being monitored and generate a corrsponding signal. The system is preferably attached to a scan board (90) thereby enabling the system to be used in scanning a surface. The system also includes a signal processor (22) which processes the signal generated by the detector. The resulting data is displayed by an output device (26).
Doyle Timothy E.
Johnson Kendall B.
Pearson Lee H.
Barrigar & Moss
Thiokol Corporation
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