Patent · US Active

Optical encoder and method of operating the same

US11300403B2 · kind B2 · utility

0Cited by
3References
14Claims
0Family size

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Key dates

Filing dateDec 28, 2017
Grant dateApr 12, 2022
Priority date
Expiry dateApr 8, 2039

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01D5/3473
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A coding disc having a first surface and a second surface opposite to the first surface is provided. The coding disc includes a first aperture and a second aperture. The first aperture penetrates the coding disc from the first surface of the coding disc to the second surface of the coding disc. The first aperture has a first width. The second aperture penetrates the coding disc from the first surface of the coding disc to the second surface of the coding disc. The second aperture has a second width. The second width of the second aperture is different from the first width of the first aperture.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.