Optics: measuring and testing – By polarized light examination – With light attenuation
Patent
1993-04-19
1995-05-16
Pham, Hoa Q.
Optics: measuring and testing
By polarized light examination
With light attenuation
356376, G01B 1114
Patent
active
054165903
ABSTRACT:
A hand-held apparatus and process for measuring the gap and mismatch of two adjacent surfaces. The apparatus includes two strobe lights positioned within a hand-held housing. An optical interface within the housing directs a portion of the light generated by each light source into substantially parallel planes which are projected out of the opening of the housing at converging angles onto the surfaces to be measured. A camera within the housing captures the resulting image and generates a signal corresponding to the image. A signal processor which includes a frame grabber card processes the signal generated by the array of detectors to thereby calculate the amount of gap and mismatch between the surfaces being measured.
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Bjork Donald R.
Rudberg Donald A.
Southwood Mark E.
Stover John C.
Swimley Brett D.
Pham Hoa Q.
TMA Technologies, Inc.
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