Optical target alignment and technique

Details Optical target alignment and technique Optical target alignment and technique

1996-02-29

1998-08-18

Gonzalez, Frank

Optics: measuring and testing

By alignment in lateral direction

356375, 356138, 356146, G01B 1100

Patent

active

057964882

ABSTRACT:
The invention resides in a method of measuring position and angle comprising the steps of providing a tooling telescope, a transparent target surface and an alignment target having a light reflecting face confronting the telescope. The light reflecting face being defined by a recess having a parabolic surface and a flat surface surrounding the parabolic recess. The method further includes using light reflected off the flat surface to create collimated light passing through the target surface to define an angle of measurement of the tooling telescope and using light reflected off the parabolic surface to focus a point on the transparent target surface to measure position.

REFERENCES:
patent: 3446560 (1969-05-01), Braisier
patent: 4907881 (1990-03-01), Jones
patent: 5400133 (1995-03-01), Hinton et al.

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