Head-up display device and vehicle
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsKeiichi Matsuzaki, Michihiro Yamagata
Life of this patent
Estimating the term…
Abstract
A head-up display device includes a display element, a beam splitter, a movable mirror, first and second mirrors, and a movable unit. The display element emits light to form a display image. The beam splitter being an optical member that reflects light or through which light is transmitted, reflects light emitted from the display element. The movable mirror reflects light reflected off the beam splitter. The first and second mirrors that reflect light movable mirror, or through which the light transmitted through the beam splitter is transmitted, project a virtual image. The movable unit adjusts a distance between the movable mirror and the beam splitter to adjust a projection distance of the virtual image.
Claims12
A head-up display device comprising:
- a display that emits light to form a display image;
- a light separator being an optical member that reflects light or through which light is transmitted, and that reflects light emitted from the display;
- a first optical member that reflects light reflected off the light separator;
- a second optical member, wherein the light reflected off the first optical member is transmitted through the light separator directly to the second optical member, which then reflects or transmits the light, to project a virtual image;
- and
- an adjuster that moves the first optical member relative to the second optical member and that adjusts a distance between the first optical member and the light separator to adjust a projection distance of the virtual image.
Dependencies are inferred from the claim text.