Optical alignment method using arbitrary geometric figures

Details Optical alignment method using arbitrary geometric figures Optical alignment method using arbitrary geometric figures

1990-04-26

1991-10-08

Turner, Samuel

Optics: measuring and testing

By alignment in lateral direction

With registration indicia

356153, 356399, 350275, G01B 1100

Patent

active

050549294

ABSTRACT:
A novel method that is suitable for uniquely aligning first and second objects. A pre-alignment stage of one aspect of the novel method comprises generating on a first object a first geometric configuration comprising dark and clear regions, and having at least one portion characterized by randomness; and generating on a second object, a geometric configuration which is a geometric complement of the first random geometric configuration. An alignment stage of the novel method comprises juxtaposing the first and second objects so that the first geometric configuration and its complement generate a unique dark spot; and, rotating the first and second objects about an axis normal to the first object and centered at the dark spot, until a transmissivity of the juxtaposed objects is at a minimum.

REFERENCES:
patent: 4371264 (1983-02-01), Lacombat et al.
patent: 4890918 (1990-01-01), Monford

Affiliated with

Also associated with

Rating

Optical alignment method using arbitrary geometric figures does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical alignment method using arbitrary geometric figures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical alignment method using arbitrary geometric figures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-254053