Arrangement for sensing the characteristics of a surface and det

Details Arrangement for sensing the characteristics of a surface and det Arrangement for sensing the characteristics of a surface and det

1975-08-27

1980-01-29

Corbin, John K.

Optics: measuring and testing

By polarized light examination

With light attenuation

250558, 355 40, 356 2, 356397, G01B 1100, G01C 1102, G01C 1112, G03B 504

Patent

active

041859189

ABSTRACT:
The surface to be sensed or scanned is placed in the path of a projector which is moved along an axis of the surface. The path of motion of the projector is subdivided into predetermined sections which are illuminated by the projector in accordance with a predetermined sequential pattern. This procedure of moving the projector is repeated a predetermined number of times, with a separate illuminating pattern prevailing each time that the projector is moved relative to the surface and traverses the entire surface to be scanned. The combinations of the patterns obtained from the repeated scannings of the projector define closely-spaced sections of the surface. The patterns are coded so that each section is uniquely defined in coded form. A camera having the entire surface within its field of view photographs the surface each time that the projector is moved along the axis of the surface.

REFERENCES:
patent: 3040620 (1962-06-01), Ferris
patent: 3184732 (1965-05-01), Haynes
patent: 3234863 (1966-02-01), Peterson et al.
patent: 3682553 (1972-08-01), Marinder
patent: 3684824 (1972-08-01), Koenig
patent: 3832693 (1974-08-01), Ishizaki et al.
patent: 3858981 (1975-01-01), Jaerisch et al.
patent: 3866052 (1975-02-01), Di Matteo et al.
patent: 3876303 (1975-04-01), Talts
Kamiya, R. "The Digital Photo Map", Photogrammetric Engineering, vol. 38, 1972, pp. 985-988

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