Patent · US Expired

Visual simulators, computer generated imagery, and display systems

US4616217A · kind A · utility

21Cited by
14References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 20, 1982
Grant dateOct 7, 1986
Priority date
Expiry dateMay 20, 2002

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG09B9/34
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A display system having a screen and two spaced projectors arranged to illuminate respective parts of the screen. The screen includes a diffusor which serves to scatter light incident on the screen at a particular point in a manner such that more of the light is propagated, after scattering, more in a given direction of maximum intensity than in any other given direction. The screen has a refractor which serves to deflect the light before or after scattering from adjacent points of the different parts so as to reduce or eliminate an angle between the directions of maximum intensity for these adjacent points.

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