Patent · US Expired

Methods and apparatus for positioning optical prisms

US6643077B2 · kind B2 · utility

25Cited by
10References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 15, 2002
Grant dateNov 4, 2003
Priority date—
Expiry dateApr 15, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B27/62
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An optical assembly (11) is formed by individually positioning a plurality of prisms (15) using mechanical reference surfaces (19) which are associated with the prism's diagonal (13) and are preferably formed by extensions of a first sub-prism (17A) beyond a second sub-prism (17B). The mechanical references surfaces and a first side of the prism engage fixed mechanical references (23) associated with a housing. A locking element (21) engages a second side of the prism and forces the mechanical reference surfaces and the first side of the prism against the fixed mechanical references to achieve accurate positioning of the prism's diagonal (13).

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