HEAD-UP DISPLAY APPARATUS

摘要

A head-up display apparatus includes a projector that projects a laser beam and a screen including a plurality of optical elements that are arranged in a grid pattern. The screen diffuses the laser beam, which has entered into the plurality of optical elements from the projector, toward the projection plane. Each of the plurality of optical elements has a curved surface formed into a convex or a concave shape on an outside surface of the screen. One of the plurality of optical elements has a thickness at a curvature center point that is different from that of the other of the plurality of optical elements immediately adjacent to the one of the plurality of optical elements.

主权项

1. A head-up display apparatus for displaying a virtual image of a display image by projecting the display image to a projection plane in an interior of a vehicle, the head-up display apparatus comprising:
a projector projecting a light beam; and a screen including a plurality of optical elements that are arranged in a grid pattern on an outside surface of the screen, the screen diffusing the light beam projected from the projector toward the projection plane, wherein each of the plurality of optical elements has a curved surface having a convex or a concave shape, the light beam being diffused through the curved surface, and one of the plurality of optical elements has a thickness at a curvature center point of the curved surface that is different from that of an other of the plurality of optical elements that is immediately adjacent to the one of the plurality of optical elements.