Patent ID: 11906769
Assignee: SONY GROUP CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 0:
1. An optical system, comprising:
a first optical system including a polarization conversion element that aligns a polarization direction of light including multiple color light beams with a predetermined polarization direction, the first optical system generating illumination light including the multiple color light beams;
a first polarization rotation element which is disposed at a first pupil position inside the first optical system and includes a first divided region and a second divided region, and in which the first divided region and the second divided region have polarization characteristics different from each other with respect to a first color light beam of the multiple color light beams outputted from the polarization conversion element;
a polarizer disposed between the polarization conversion element and the first polarization rotation element inside the first optical system, the polarizer reducing light in a polarization direction other than the predetermined polarization direction of the multiple color light beams included in light outputted from the polarization conversion element; and
multiple light valves each illuminated by at least the first color light beam of the multiple color light beams included in the illumination light generated by the first optical system.