Patent ID: 11874465
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G  B | IPC B  G

Claim 23:
24. A head-up display system comprising:
an image generating apparatus configured to emit light having a first polarization and including image information;
a beam splitter provided on an optical path of the light having the first polarization, the beam splitter being configured to reflect a portion of the light having the first polarization in a first direction and transmit the remaining portion of the light having the first polarization in a second direction that is different from the first direction;
a wave plate configured to transmit the light reflected in the first direction by the beam splitter while changing a phase of the light;
a first mirror configured to reflect the light transmitted through the wave plate back to the beam splitter through the wave plate;
a second mirror spaced apart from the first mirror with the beam splitter therebetween, the second mirror being configured to reflect back, toward the beam splitter, the light reflected by the first mirror and sequentially transmitted through the wave plate and the beam splitter; and
a polarizer configured to block the light having the first polarization transmitted through the beam splitter and traveling in the second direction,
wherein the beam splitter is configured to reflect the light reflected by the second mirror, and
wherein the polarizer is configured to transmit the light sequentially reflected by the second mirror and the beam splitter.