Patent · US Expired

Dual-path optical system

US5589978A · kind A · utility

13Cited by
19References
7Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 7, 1995
Grant dateDec 31, 1996
Priority date
Expiry dateJun 7, 2015

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B23/02
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Pseudoscopic, dual-path optical systems employing plane mirror arrangements for cross coupling the optical paths to reverse the left and right perspectives of object space are provided. Advantageously, the cross coupled path arrangements permit the systems to be manufactured inexpensively because low-cost reflective components can be used and assembled with alignment requirements that are significantly relaxed compared with customary requirements found in uncoupled systems utilizing high-cost prisms or mirror arrangements for similar purposes.

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