The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2006
Filed:
Jul. 08, 2002
Bart Maximus, Oudenaarde, BE;
Bart Maximus, Oudenaarde, BE;
Barco N.V., Kortrijk, BE;
Abstract
A display system comprises a light source () producing a beam of unpolarised light and a dynamic filter () for filtering said beam of light, wherein a first region of the filter () transmits along a first path a first portion of the beam of light having a first polarisation direction and reflects along a second path a second portion of the beam of light which has a second polarisation direction. The display system also provides a spatial light modulator () on the first path for receiving light travelling along the first path and selectively modulating that light to form an image light beam. A halve-wavelength retardation () of the second portion of the beam of light also is provided. The dynamic filter () makes polarised illumination move over the spatial light modulator (). A corresponding method for providing a scrolling illumination is also provided.