公开(公告)号：US20250004297A1

公开(公告)日：2025-01-02

申请号：US18734453

申请日：2024-06-05

Applicant: ALPS ALPINE CO., LTD.

Inventor： Shingo YUZA ,  Chihiro OSHIMA

IPC: G02B30/56 ,  G02B5/124

Abstract: A display device, which is capable of displaying an aerial image using retroreflection, includes a plurality of light sources, an optical member, and a retroreflection member. The plurality of light sources are configured to output identical images in mutually different directions. The optical member splits incident light into reflected light and transmitted light at a predetermined ratio. The retroreflection member is configured to provide a retroreflection plane in a range of approximately 180 degrees with respect to a principal plane of the optical member. Light of the identical images output from the plurality of light sources is incident on the retroreflection member via the optical member, and the light reflected by the retroreflection member is transmitted through the optical member, thereby displaying a plurality of aerial images corresponding to the identical images output by the plurality of light sources.