Patent · US Expired

Projection system

US5865520A · kind A · utility

27Cited by
8References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 21, 1996
Grant dateFeb 2, 1999
Priority date
Expiry dateOct 21, 2016

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B26/0816
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A projection system includes a light source (16) and a prism assembly (41) including at least one air gap (45) effective both to deflect incident light on to at least one reflective spatial light modulator (10), and to transmit modulated light produced by the spatial light modulator (10).

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