Scale for use with opto-electronic scale reading apparatus

Details Scale for use with opto-electronic scale reading apparatus Scale for use with opto-electronic scale reading apparatus

1989-09-14

1991-07-23

Bovernick, Rodney B.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250237G, G02B 518, H01J 314

Patent

active

050338170

ABSTRACT:
A scale for use with scale reading apparatus having grooves spaced along its length at a pitch P. Each groove is made with a shape or depth variation along its length to provide a scatter mechanism for breaking up the ordered diffraction pattern which would otherwise be generated by the grating structure defined by the grooves. Methods of making the scale involve applying a transverse vibration to the cutting tool during the groove cutting operation.

REFERENCES:
patent: 4835756 (1989-05-01), Kaku et al.
patent: 4959542 (1990-09-01), Stephens
patent: 4974962 (1990-12-01), Stephens et al.
Publication "Diffraction Gratings", by M. C. Hutley, National Physical Laboratory Teddington, Middlesex, 1982, pp. 76-79.

Affiliated with

Also associated with

Rating

Scale for use with opto-electronic scale reading apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scale for use with opto-electronic scale reading apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scale for use with opto-electronic scale reading apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-428589