Patent · US Active

Accurate positioning of components of an optical assembly

US7415180B2 · kind B2 · utility

2Cited by
23References
11Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 13, 2007
Grant dateAug 19, 2008
Priority date—
Expiry dateMar 13, 2027

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B2006/12176
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A passive alignment technique is disclosed to facilitate accurate positioning of components of an optical assembly. In one aspect, a method includes directing light onto components of an optical assembly in which a first component includes a first pattern of marks with a first frequency and a second component includes a second pattern of marks with a second different frequency. An optical signal corresponding to the superposition of the first and second patterns is detected. Based on the detected optical signal, a determination may be made as to whether the first and second components are properly positioned with respect to one another.

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