US Patent Issued to PANASONIC INTELLECTUAL PROPERTY MANANGEMENT on Feb. 18 for "Light source device and projection-type display apparatus" (Japanese Inventor)

ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,228,847, issued on Feb. 18, was assigned to PANASONIC INTELLECTUAL PROPERTY MANANGEMENT Co. LTD. (Osaka, Japan).

"Light source device and projection-type display apparatus" was invented by Takaaki Tanaka (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light source device includes: blue, green, and red laser light sources; a first retardation plate that controls polarization of blue laser light emitted from the blue laser light source; a polarizing beam splitter that separates the blue laser light whose polarization is controlled by the first retardation plate into a first blue laser light and a second laser light; a second retardation pla...