Patent · US Expired

Instructive display for assisting in centering an optical path element on a path

US5446274A · kind A · utility

3Cited by
5References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 22, 1994
Grant dateAug 29, 1995
Priority date
Expiry dateFeb 22, 2014

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01M11/0221
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A polar or vector display provides an operator of an optical instrument with a symbolic instruction regarding the direction and amount of motion required to center an optical element on a chosen path.

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