Vehicle head-up display system

Abstract

The present invention proposes a vehicle-mounted head-up display system, wherein the system includes: a projector, a beam diffusion plate, and an imaging plate; The light-incident surface forms a real image of the image; the beam diffuser is used to expand the incident projection light to obtain the expanded beam, and the expanded beam is emitted to the imaging plate; the imaging plate is used to expand the incident beam. Converge to obtain imaging light, and transmit the imaging light through the front windshield of the vehicle to enter the vehicle, so that the reverse extension line of the imaging light forms a virtual image of the image outside the vehicle. The system expands the projection light through the beam diffuser, which can ensure the required incident aperture of the image, thereby ensuring the quality of the virtual image formed by the reverse extension line of the imaging light outside the vehicle.

Description

technical field [0001] The invention relates to the technical field of projection display, in particular to a vehicle-mounted head-up display system. Background technique [0002] The vehicle-mounted head-up display system can project the image to be projected onto the front windshield of the vehicle, so that the driver can quickly read the relevant information on the instrument panel without changing the focus of the eyes while observing the external road conditions. Data, thereby improving the safety of drivers driving vehicles. In the prior art, the vehicle-mounted head-up display system is installed inside the vehicle and adopts a traditional fold-back structure to reflect the projection light emitted by the projector into the vehicle to form a real image of the image. [0003] In this way, the incident aperture that the optical system can receive is limited, the number of light projection types is small, and the quality of the real image of the image formed in the car ...

AI Technical Summary

Problems solved by technology

In addition, the vehicle-mounted head-up display system can be installed outside the vehicle, and the optical system does not occupy the interior space of the vehicle, thereby effectively ensuring the seating space inside the vehicle, and is used to solve the problem that the existing vehicle-mounted head-up display system is installed inside the vehicle The entrance aperture is limited, the number of light projections is small, and the quality of the real image of the image formed in the car is poor

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