Patent · US Expired

Scanned beam display

US6937221B2 · kind B2 · utility

75Cited by

24References

24Claims

0Family size

Assignee

Microvision, Inc. · US

Inventors

Thomas Lippert · Aschaffenburg, DE
Clarence T. Tegreene · Bellevue, US

Key dates

Filing date	Jul 2, 2001
Grant date	Aug 30, 2005
Priority date	—
Expiry date	Sep 30, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG02B23/12
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A display apparatus includes first and second IR or other light sources that produce light at respective first and second non-visible wavelengths. The light is modulated according to a desired image. The modulated light is then applied to a wavelength selective phosphor that converts each component of the light to a respective visible wavelength. In one embodiment, the image source is a scanned light beam display that scans an IR light beam onto a screen that carries the phosphor.

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