Image display device and projection optical system

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United States of America Patent

PATENT NO 11194242
APP PUB NO 20200142291A1
SERIAL NO

16628167

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An image display device according to an embodiment of the present technology includes a light source, an image generator, and a projection optical system. The image generator modulates a light beam emitted by the light source and generates image light. The projection optical system includes a first lens system, a first reflection optical system, a second lens system, and a second reflection optical system. The first lens system has a positive refractive power as a whole, and refracts the generated image light. The first reflection optical system includes two or more reflection surfaces, each reflection surface being a surface off which the image light refracted by the first lens system is reflected. The second lens system has a positive refractive power as a whole, and refracts the image light reflected off the first reflection optical system. The second reflection optical system includes a concave reflection surface off which the image light refracted by the second lens system is reflected to be directed to a projected-onto object onto which projection is performed.

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Patent Owner(s)

  • SONY CORPORATION OF JAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nishikawa, Jun Kanagawa, JP 49 528

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