Title:
結像光学系、および、画像投射装置
Document Type and Number:
Japanese Patent JP5787662
Kind Code:
B2
Abstract:
An imaging optical system includes a lens unit that includes a plurality of optical elements, and an optical path combining portion that includes a flat plate disposed so as to be inclined with respect to an optical axis of the lens unit, and the lens unit includes a correction portion that has a shape asymmetric with respect to the optical axis in a cross section that is parallel to both a normal of the flat plate and the optical axis.
Inventors:
Kazuhiro Inoko
Application Number:
JP2011170692A
Publication Date:
September 30, 2015
Filing Date:
August 04, 2011
Export Citation:
Assignee:
Canon Inc
International Classes:
G02B13/00; G02B15/20; G03B21/14
Domestic Patent References:
| JP200113584A | ||||
| JP2000111862A | ||||
| JP5100187A |
Attorney, Agent or Firm:
Ryosuke Fujimoto
Atsushi Mizumoto
Hirayama Tomoya
Atsushi Mizumoto
Hirayama Tomoya