3-D projection full color multimedia display

US9217876B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9217876-B2
Application numberUS-201414281462-A
CountryUS
Kind codeB2
Filing dateMay 19, 2014
Priority dateApr 25, 2006
Publication dateDec 22, 2015
Grant dateDec 22, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

Methods and systems are described herein which produce polarization-independent full color images suitable for rear-projection television sets and other multimedia displays. The system uses illumination with R, G, B light from two different light sources for each color. A viewer wears glasses with narrowband optical filters, preferably holographic filters. The R, G, B light from the light sources is slightly offset at each of the 3 emission wavelengths, with one set of R, G, B light being filtered by the holographic filter in front of the left eye of the, and the other set of R, G, B light being filtered by the holographic filter in front of the viewer's right eye.

First claim

Opening claim text (preview).

What is claimed is: 1. A method of displaying a three-dimensional image comprising: displaying a first series of right eye images by illuminating a first light modulator with a first color, having a first center wavelength, corresponding to a first primary color, wherein: the first color having the first center wavelength is emitted by a plurality of lasers, the first center wavelength is the center of an ensemble bandwidth emitted by the plurality of lasers, and the ensemble…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9217876B2 cover?
Methods and systems are described herein which produce polarization-independent full color images suitable for rear-projection television sets and other multimedia displays. The system uses illumination with R, G, B light from two different light sources for each color. A viewer wears glasses with narrowband optical filters, preferably holographic filters. The R, G, B light from the light sourc…
Who is the assignee on this patent?
Christie Digital Systems Usa
What technology area does this patent fall under?
Primary CPC classification G02B30/23. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Dec 22 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).