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Patent Searching and Data


Title:
IMAGE DISPLAY DEVICE, PROJECTION OPTICAL SYSTEM, AND IMAGE DISPLAY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/216017
Kind Code:
A1
Abstract:
An image display device according to one embodiment of the present invention is equipped with a light source, an image generation unit P, and a projection optical system 15. The image generation unit modulates light, which is emitted from the light source, to generate image light. The projection optical system has a lens system L1, and a concave reflecting surface Mr3. The lens system is configured using a reference axis at a position to which the generated image light is incident as a reference, and overall said lens system has a positive refractive power. The concave reflecting surface is configured using the reference axis as a reference, and said concave reflecting surface reflects the image light, which is emitted from the lens system, towards an object for projection. The concave reflecting surface reflects at least a portion of a light beam which is included in the image light incident to the concave reflecting surface, and furthermore reflects the same in a direction which intersects, at an angle of at least 80 degrees, with a direction which follows along the reference axis.

Inventors:
NISHIKAWA, Jun (1-7-1 Konan Minato-k, Tokyo 75, 〒1080075, JP)
EDAMITSU, Naoko (1-7-1 Konan Minato-k, Tokyo 75, 〒1080075, JP)
NASHIDA, Tatsushi (1-7-1 Konan Minato-k, Tokyo 75, 〒1080075, JP)
SHIMIZU, Yosuke (1-7-1 Konan Minato-k, Tokyo 75, 〒1080075, JP)
Application Number:
JP2019/009702
Publication Date:
November 14, 2019
Filing Date:
March 11, 2019
Export Citation:
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Assignee:
SONY CORPORATION (1-7-1 Konan, Minato-ku Tokyo, 75, 〒1080075, JP)
International Classes:
G03B21/28; G02B17/08; G03B21/00; H04N5/74
Attorney, Agent or Firm:
OMORI, Junichi (2nd Floor, U&M Akasaka Bldg. 7-5-47 Akasaka, Minato-k, Tokyo 52, 〒1070052, JP)
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