Image display apparatus having an optical scanner
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United States of America Patent
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Feb 6, 2018
Issued Date -
N/A
app pub date -
Dec 7, 2015
filing date -
Dec 8, 2014
priority date (Note) -
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Abstract
An image display apparatus includes an image light generator that generates video light modulated based on a video signal, a light diffracting section (first diffractive optical element) that diffracts the video light outputted from the image light generator, a light sweeper (optical scanner) that spatially scans the video light, and a reflector including a light diffracting section (second diffractive optical element) that diffracts the video light scanned by the light sweeper, and the light diffracting section (first diffractive optical element) is provided on an optical path between the image light generator and the light sweeper. The light diffracting section (first diffractive optical element) preferably has a fixed interval between interference fringes, and the light diffracting section (second diffractive optical element) preferably has portions where intervals between interference fringes differ from each other.
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