Methods for use in definition of object surfaces

Details Methods for use in definition of object surfaces Methods for use in definition of object surfaces

1977-10-03

1981-03-31

Corbin, John K.

Optics: measuring and testing

By polarized light examination

With light attenuation

356376, G01B 1100, G01B 1124

Patent

active

042590175

ABSTRACT:
In a method for defining the spatial location of points comprising an object surface, radiant energy is projected onto the object in successive steps with the energy projected in each step having a unique change in intensity with distance along an axis extending transversely of the projection field. The spatial locations of surface points are derived by comparison of reflected intensity information derived from records of the object so irradiated and predetermined patterns derived in accordance with the intensity changes with transverse distance in the respective energy projections.

REFERENCES:
patent: 3799675 (1974-03-01), Johnson et al.
patent: 3866052 (1975-02-01), Di Matteo et al.
patent: 4145991 (1979-03-01), Di Matteo et al.

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