HEAD-UP DISPLAY DEVICE
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United States of America Patent
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Nov 2, 2015
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Nov 4, 2014
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Abstract
The present invention relates to a head-up display device that allows a viewer to view an actual scene overlapped with a virtual image, and that is capable of creating a display image with suppressed luminance variation. A MEMS scanner scans synthesized laser light two-dimensionally in the main scanning direction H and the sub-scanning direction V substantially orthogonal to the main scanning direction H. A controller unit causes a first scan for generating a display image M on a transmissive screen by scanning in the main scanning direction H at high speed while scanning in the sub-scanning direction V, and a second scan for scanning a position displaced more toward the sub-scanning direction V than the first scan on the transmissive screen.
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