HEAD-UP DISPLAY DEVICE AND VEHICLE
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United States of America Patent
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app pub date -
Sep 26, 2017
filing date -
Mar 24, 2016
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Abstract
A head-up display device includes a display element, a movable mirror, one or more first and second mirrors, and an movable unit. The display element emits light to form a display image. The movable mirror first reflects light emitted from the display element. The one or more first and second mirrors reflect light reflected off the movable mirror to project a virtual image. The movable unit adjusts a position of the movable mirror to adjust a projection distance of the virtual image. The movable mirror is disposed at a position such that light incident to the movable mirror is non-parallel to a normal of the movable mirror.
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