18815033. OPTICAL SYSTEM (3M INNOVATIVE PROPERTIES COMPANY)
Contents
OPTICAL SYSTEM
Organization Name
3M INNOVATIVE PROPERTIES COMPANY
Inventor(s)
Timothy L. Wong of St. Paul MN (US)
David J.W. Aastuen of Shoreview MN (US)
Zhisheng Yun of Sammamish WA (US)
Timothy J. Nevitt of Red Wing MN (US)
OPTICAL SYSTEM
This abstract first appeared for US patent application 18815033 titled 'OPTICAL SYSTEM
Original Abstract Submitted
An optical system for displaying an image to a viewer includes a pixelated display including a plurality of pixels emitting unpolarized image light; a partial reflector having an average optical reflectance of at least 30% in a predetermined wavelength range; a first retarder layer disposed between the pixelated display and the partial reflector; a second retarder layer disposed between the first retarder layer and the partial reflector; and a reflective polarizer disposed between the first and second retarder layers. The reflective polarizer is adapted to increase a brightness of a pixelated image emitted by the pixelated display and displayed to the viewer by recycling at least a portion of unpolarized image light emitted by the pixels; and receive an image ray reflected by the partial reflector and reflect the received image ray toward the viewer.
