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:
Sep. 24, 2024
Filed:
Oct. 07, 2021
Lumileds Llc, San Jose, CA (US);
Frederic Stephane Diana, Santa Clara, CA (US);
Nicola Bettina Pfeffer, Eindhoven, NL;
Arjen Gerben Van der Sijde, Eindhoven, NL;
Lumileds LLC, San Jose, CA (US);
Abstract
In a projection display system, a polarizing beamsplitter can split an unpolarized light beam into a first internal beam and a second internal beam, which can have polarization states that are orthogonal. A polarization rotator, such as a half-wave plate, can rotate a plane of polarization of at least one of the first internal beam or the second internal beam. A beam aligner, such as a second polarizing beamsplitter, can change a propagation direction of at least one of the first internal beam or the second internal beam. The polarization rotator and the beam aligner each can adjust at least one of the first or second internal beams such that the first internal beam forms a first exiting beam and the second internal beam forms a second exiting beam. The first exiting beam and the second exiting beam can be adjacent and parallel and have parallel polarization states.