Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1991-01-16
1992-11-17
Buczinski, Stephen C.
Optics: measuring and testing
Range or remote distance finding
With photodetection
2502014, 2502018, 356372, 356375, 356376, G01C 308, G01B 1124, G01J 120
Patent
active
051650630
ABSTRACT:
The method serves for measuring the profile of a rough, reflecting surface as a function of the distance between each point of this profile and a polychromatic light source. This object is reached, e.g., by forming a flat light bundle from the light of this source and imagining it on the profile by means of a chromatic lens element. This leads to a light band of different colors, which indicate the profile contour. Analysis by means of a spectral-dispersive apparatus reconstructs the contour profile of the object.
REFERENCES:
patent: 4585349 (1986-04-01), Gross et al.
patent: 4770532 (1988-09-01), Ito
IBM Technical Disclosure Bulletin, vol. 27, No. 12, May 1985, (New York), "Chromatic Focusing Technique", pp. 6850-6851.
IBM Technical Disclosure Bulletin, vol. 16, No. 2, Jul. 1973, (New York), J. R. Malin, "Optical Micrometer", pp. 433 to 434.
R. A. Jarvis, "A Perspective on Range Finding Techniques For Computer Vision" Transaction on Pattern Analysis and Machine Intelligence, Band PAMI-5 IEEE, No. 2, Mar. 1983, (New York), pp. 122 to 139 (Jarvis).
Gross Daniel
Jauch Karl M.
Strater Hans-Dieter
Battelle-Institut e.V.
Buczinski Stephen C.
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