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Title:
画像表示装置、投射光学系、及び画像表示システム
Document Type and Number:
Japanese Patent JP7207405
Kind Code:
B2
Abstract:
An image display apparatus according to an aspect of the present technology includes a light source, an image generator, and a projection optical system. The image generator modulates light emitted from the light source and generates image light. The projection optical system includes a lens system and a concave reflective surface. The lens system is configured on a basis of a reference axis at a position on which the generated image light is incident, and has a positive refracting power as a whole. The concave reflective surface is configured on a basis of the reference axis, and reflects the image light emitted from the lens system toward a projection target. In addition, the concave reflective surface reflects at least one or more light beams included in the image light incident on the concave reflective surface, toward a direction that intersects with a direction along the reference axis at an angle of 80 degrees or more.

Inventors:
Jun Nishikawa
Edamitsu Naoko
Tatsushi Rikoda
Yousuke Shimizu
Application Number:
JP2020518167A
Publication Date:
January 18, 2023
Filing Date:
March 11, 2019
Export Citation:
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Assignee:
Sony Group Corporation
International Classes:
G03B21/28; G02B13/18; G02B17/08; G03B21/00; H04N5/74
Domestic Patent References:
JP2016004227A
JP2008116688A
JP2015127755A
JP2014228576A
JP2009134254A
JP2010175844A
Foreign References:
WO2018042865A1
CN202976531U
Attorney, Agent or Firm:
Patent Attorney Corporation Minami Aoyama International Patent Office
Junichi Omori
Takahashi Mitsuru
Teppei Nakamura
Akira Orii
Sekine Masayoshi
Ayako Kaneko
Shintaro Kanayama
Ayako Chiba
Tomohisa Shiraka