Configuration detecting method and system

Details Configuration detecting method and system Configuration detecting method and system

1982-10-05

1985-11-19

Rosenberger, R. A.

Optics: measuring and testing

By polarized light examination

With light attenuation

G01B 1124

Patent

active

045538441

ABSTRACT:
Method and system of detecting a configuration of a three-dimensional object, in which use is made of a spot beam to be directed to the object. The spot beam is caused to scan the object in a horizontal direction and the resulting spot image is detected through observation in a direction transverse to the horizontal direction. The system includes a laser light source, two Fourier transformation lenses having their Fourier transformation planes intersecting each other on the optical axes of the lenses on a light deflector, a photoelectric converter provided on the object plane of one of the lenses, the laser light source being disposed on the same meridian as the converter, and at least one reflecting mirror provided for forming a real image of the spot of the beam on the object.

REFERENCES:
patent: 3667846 (1972-06-01), Nater et al.
patent: 3885875 (1975-05-01), Rosenfeld et al.
patent: 4171917 (1979-10-01), Pirlet

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