Auto-collimator

Details Auto-collimator Auto-collimator

2006-08-29

2006-08-29

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

Angle measuring or angular axial alignment

With screen

C356S139040

Reexamination Certificate

active

07099001

ABSTRACT:
For detection of the inclination of the normal of a measurement-subject article, an auto-collimator applies a laser beam from a light source onto the measurement-subject article. Then, the return light reflected back from the measurement-subject article is concentrated by a convex lens. Further the return light is converted to parallel light by a concave lens and then projected onto a first screen. The auto-collimator is provided with a beam splitter provided between the convex lens and the concave lens for splitting off a portion of the return light traveling back from the measurement-subject article, and a coarse-adjustment verification screen for showing the split-off light split off from the return light by the beam splitter.

REFERENCES:
patent: 5144479 (1992-09-01), Aharon et al.
patent: 5461472 (1995-10-01), Harvey et al.
patent: 55-25605 (1975-03-01), None

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