Meta platforms technologies, llc (20240427153). LIGHT RECYCLING AND CONVERSION SYSTEMS FOR DISPLAY DEVICES
Contents
LIGHT RECYCLING AND CONVERSION SYSTEMS FOR DISPLAY DEVICES
Organization Name
meta platforms technologies, llc
Inventor(s)
Derek Wallin of Monroe WA (US)
Ajit Ninan of San Jose CA (US)
Chun Chi Wan of San Jose CA (US)
LIGHT RECYCLING AND CONVERSION SYSTEMS FOR DISPLAY DEVICES
This abstract first appeared for US patent application 20240427153 titled 'LIGHT RECYCLING AND CONVERSION SYSTEMS FOR DISPLAY DEVICES
Original Abstract Submitted
a polarizing illuminator includes a light source, a collimator for collimating a light beam emitted by the light source, a parallel plate having a first surface and a second surface disposed at an acute angle with respect to the light beam, the first surface including a transmissive portion and a reflective portion, and the second surface including a reflective polarizer configured to reflect one polarization of the light beam, transmit an orthogonal polarization of the light beam, and split the light beam into first and second orthogonally polarized sub-beams, and a retarding wave plate disposed between the reflective portion of the first surface and the reflective polarizer, wherein the retarding wave plate is configured to rotate at least one of the first sub-beam and the second sub-beam to a matched polarization, and the first and second sub-beams having the matched polarization propagate parallel to each other.
