Patent ID: 11885959
Assignee: APPLE INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 20:
21. An electronic device comprising:
an array of pixels configured to produce light;
a linear polarizer;
a first quarter wave plate that receives the light from the linear polarizer, the linear polarizer being optically coupled between the array of pixels and the first quarter wave plate;
a first lens having a first surface and an opposing second surface, the first quarter waveplate being optically coupled between the first lens and the linear polarizer;
a second lens having a third surface and an opposing fourth surface, the first lens being optically coupled between the second lens and the first quarter wave plate;
a partially reflective mirror optically coupled between the first lens and the second lens;
a reflective polarizer, the second lens being optically coupled between the reflective polarizer and the first lens; and
a second quarter wave plate optically coupled between the array of pixels and the linear polarizer, wherein the linear polarizer has a pass axis, the second quarter wave plate has a first fast axis that is oriented at first non-zero angle with respect to the pass axis, and the first quarter wave plate has a second fast axis that is oriented at a second non-zero angle with respect to the pass axis.