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Patent Searching and Data


Title:
OPTICAL SYSTEM AND PROJECTOR
Document Type and Number:
WIPO Patent Application WO/2019/198432
Kind Code:
A1
Abstract:
An optical system according to the present disclosure is provided with: a projection optical system which includes a plurality of lenses and projects, onto a projection surface, an image generated by a light valve disposed on a first optical path, and onto which object light from a detection object present on the projection surface side is incident from the projection surface side; an optical path dividing unit which is disposed closer to the projection surface side than the lens disposed closest to the light valve among the plurality of lenses in the projection optical system, and divides the optical path into a first optical path and a second optical path different from the first optical path; and a detection optical system which has, on the second optical path, at least one lens disposed between an image capturing element and the optical path dividing unit, wherein the object light is incident on the detection optical system through the optical path dividing unit, and an image of the detection object is formed on an image capturing surface of the image capturing element.

Inventors:
YASUI, Toshifumi (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
Application Number:
JP2019/011124
Publication Date:
October 17, 2019
Filing Date:
March 18, 2019
Export Citation:
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Assignee:
SONY CORPORATION (1-7-1, Konan Minato-k, Tokyo 75, 〒1080075, JP)
International Classes:
G02B17/08; G02B13/16; G02B13/18; G03B21/14
Foreign References:
JP2005283658A2005-10-13
JP2017167180A2017-09-21
JP2016057363A2016-04-21
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (3F Sawada Building, 15-9 Shinjuku 1-chome, Shinjuku-k, Tokyo 22, 〒1600022, JP)
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