ALEXANDRIA, Va., April 7 -- United States Patent no. 12,598,276, issued on April 7, was assigned to SONY GROUP Corp. (Tokyo).
"Projection display apparatus" was invented by Kazuya Terasaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A projection display apparatus according to an embodiment of the present disclosure includes: a light source unit; an image formation optical system; a projection optical system; a cooling unit; and a heat exchanger. The image formation optical system includes a spatial modulation element that modulates light emitted from the light source unit. The projection optical system projects the light from the spatial modulation element. The cooling unit includes a fan that send...