Apparatus for automatically taking a reading of the shape and/or

Details Apparatus for automatically taking a reading of the shape and/or Apparatus for automatically taking a reading of the shape and/or

1992-07-20

1994-04-26

Housel, James C.

Optics: measuring and testing

By polarized light examination

With light attenuation

356377, 33200, G01B 1124

Patent

active

053071506

ABSTRACT:
The apparatus comprises a device which explores without contact the inner contour of the frame rim (16) and employs an optical device (30) for sensing the image of characteristic points of the rim inner contour, an analyzer for analyzing the sensed images for determining the spatial coordinates of the characteristic points, and a calculating device for reconstituting the shape and/or the profile of the contour of the frame rim from these spatial coordinates.

REFERENCES:
patent: 4105925 (1978-08-01), Rossol et al.
patent: 4724617 (1988-02-01), Logan et al.
patent: 4803371 (1989-02-01), Durland
patent: 4939379 (1990-07-01), Horn
patent: 4983043 (1991-01-01), Harding
patent: 4991305 (1991-02-01), Saigo et al.
patent: 5121550 (1992-06-01), Wood et al.

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