Patent · US Active

Screen, rear projector, projection system, and image display unit

US7697201B2 · kind B2 · utility

2Cited by
10References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 23, 2007
Grant dateApr 13, 2010
Priority date
Expiry dateApr 10, 2028

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B21/625
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A screen that displays images as a result of receiving projection light, includes: a plurality of plate components that are optically transparent and are provided apart from each other; a scatterer that is placed in a light scattering space that is formed between the plurality of plate components, and is formed by dispersing a light scattering material in a gas or liquid dispersion medium; a flow path that allows the scatterer to flow through the light scattering space; and a flow device that causes the scatterer to flow through the light scattering space.

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