The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2017
Filed:
May. 19, 2015
Mitutoyo Corporation, Kanagawa-ken, JP;
Brynn Kristen Hickman MacCoy, Seattle, WA (US);
Casey Edward Emtman, Kirkland, WA (US);
Daniel John Kapner, Seattle, WA (US);
Mitutoyo Corporation, Kanagawa-ken, JP;
Abstract
A light source array used in illumination portions for optical encoders comprising an illumination portion, a scale grating extending along a measuring direction and receiving light from the illumination portion, and a detector configuration. The light source array comprises individual sources arranged in a grid pattern and coinciding with two transverse sets of parallel grid pattern lines that have two different grid line pitches between their parallel lines. Different instances of the light source array may be mounted with different rotational orientations about an axis normal to the grid pattern, for use in different illumination portions adapted for use with respective scale gratings having different grating pitches along the measuring axis direction. By using the different respective rotational orientations, the individual sources are aligned along respective illumination source lines that are spaced apart by different respective illumination source line pitches along the measuring axis direction.