Heads-up display device
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United States of America Patent
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Aug 6, 2019
Grant Date -
Jan 25, 2018
app pub date -
Jun 15, 2017
filing date -
Jul 25, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
There is provided a head-up display device that reflects and enlarges an image, which is displayed on an image display element, by a curved mirror, allows an observer to visually recognize the image as a virtual image, can change a virtual image display position, and is small. A head-up display device, which reflects and enlarges a displayed primary display image by a curved mirror and allows an observer to visually recognize the primary display image as a virtual image, includes a virtual-image-position change portion of changing a distance between the observer and the virtual image and a display-size change portion of changing the display size of the primary display image, and is adapted to satisfy the following conditional expression (1).
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