Patent ID: 11872887
Assignee: INTERFACE TECHNOLOGY (CHENGDU) CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B

Claim 11:
12. A vehicular head-up display system, arranged in a vehicle, comprising:
at least one image generating device configured to emit polarized light with a first polarization direction, wherein the polarized light includes image information;
a polarization reflection film and a light-transmitting substrate provided on an optical path of the polarized light, the polarization reflection film formed on a surface of the light-transmitting substrate through an optical adhesive and configured to transmit the polarized light; and
a curved wave plate and a curved reflector having same curvatures, the curved wave plate adhering to a reflection curved surface of the curved reflector through an optical adhesive, the reflection curved surface facing towards the polarization reflection film, the curved wave plate and the curved reflector provided on an optical path of the polarized light, wherein when the curved wave plate transmits the polarized light, the curved wave plate converts a phase of the polarized light, when the curved reflector reflects the polarized light sequentially passing through the polarization reflection film and the curved wave plate to the polarization reflection film through the curved wave plate, the curved wave plate converts the first polarization direction of the polarized light into a second polarization direction different from the first polarization direction, a windshield of the vehicle is provided on an optical path of the polarized light with the second polarization direction, and the polarization reflection film is configured to reflect the polarized light with the second polarization direction to the windshield to generate a virtual image.