JP7027736B2 - 投写型画像表示装置 - Google Patents

投写型画像表示装置 Download PDF

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Publication number
JP7027736B2
JP7027736B2 JP2017169219A JP2017169219A JP7027736B2 JP 7027736 B2 JP7027736 B2 JP 7027736B2 JP 2017169219 A JP2017169219 A JP 2017169219A JP 2017169219 A JP2017169219 A JP 2017169219A JP 7027736 B2 JP7027736 B2 JP 7027736B2
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Japan
Prior art keywords
lens group
lens
correction
optical system
projection optical
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JP2017169219A
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English (en)
Japanese (ja)
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JP2019045708A5 (enExample
JP2019045708A (ja
Inventor
章一郎 豊田
浩司 塩川
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Seiko Epson Corp
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Seiko Epson Corp
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Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP2017169219A priority Critical patent/JP7027736B2/ja
Priority to US16/119,422 priority patent/US10571786B2/en
Publication of JP2019045708A publication Critical patent/JP2019045708A/ja
Publication of JP2019045708A5 publication Critical patent/JP2019045708A5/ja
Application granted granted Critical
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/142—Adjusting of projection optics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/146—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having more than five groups
    • G02B15/1465—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having more than five groups the first group being negative
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/16—Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers, or for use with projectors, e.g. objectives for projection TV
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/142—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having two groups only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/095—Refractive optical elements
    • G02B27/0955—Lenses

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Projection Apparatus (AREA)
  • Nonlinear Science (AREA)
JP2017169219A 2017-09-04 2017-09-04 投写型画像表示装置 Active JP7027736B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2017169219A JP7027736B2 (ja) 2017-09-04 2017-09-04 投写型画像表示装置
US16/119,422 US10571786B2 (en) 2017-09-04 2018-08-31 Projection system and projection-type image display apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017169219A JP7027736B2 (ja) 2017-09-04 2017-09-04 投写型画像表示装置

Publications (3)

Publication Number Publication Date
JP2019045708A JP2019045708A (ja) 2019-03-22
JP2019045708A5 JP2019045708A5 (enExample) 2020-08-06
JP7027736B2 true JP7027736B2 (ja) 2022-03-02

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JP2017169219A Active JP7027736B2 (ja) 2017-09-04 2017-09-04 投写型画像表示装置

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US (1) US10571786B2 (enExample)
JP (1) JP7027736B2 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105974561B (zh) * 2016-07-08 2018-08-24 浙江舜宇光学有限公司 广角摄像镜头
JP6740873B2 (ja) * 2016-11-22 2020-08-19 セイコーエプソン株式会社 投射光学系及びプロジェクター
JP7113970B2 (ja) * 2019-05-17 2022-08-05 富士フイルム株式会社 投射レンズおよび投射装置
CA3259873A1 (en) * 2023-05-03 2024-11-07 Illumina, Inc. OPTICAL ARRANGEMENT FOR THE COMPENSATION OF THERMALLY INDUCED ASTIGMATISM OF A LENS

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140347740A1 (en) 2012-02-09 2014-11-27 Fujifilm Corporation Optical system for projection and projection-type display apparatus
JP2015049340A (ja) 2013-08-30 2015-03-16 株式会社リコー 投射光学系、それを備えた画像表示装置および画像表示装置の調整方法
JP2016080823A (ja) 2014-10-15 2016-05-16 日東光学株式会社 投射レンズ鏡筒、投射表示装置
JP2017049422A (ja) 2015-09-01 2017-03-09 キヤノン株式会社 投射光学系、及びそれを用いた投射型画像表示装置
JP2017126036A (ja) 2016-01-15 2017-07-20 キヤノン株式会社 投射光学系および投射型表示装置
JP2019015829A (ja) 2017-07-06 2019-01-31 キヤノン株式会社 光学系および画像投射装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06273670A (ja) * 1993-03-18 1994-09-30 Minolta Camera Co Ltd プラスチックレンズを用いたズームレンズ
JP3414499B2 (ja) 1994-06-24 2003-06-09 オリンパス光学工業株式会社 ズームレンズ
JP4321056B2 (ja) 2001-12-17 2009-08-26 パナソニック株式会社 温度補償機能を有する変倍撮像装置およびそれを用いたビデオカメラ
US6710932B2 (en) 2001-12-17 2004-03-23 Matsushita Electric Industrial Co., Ltd. Zoom lens system with temperature compensation function and video camera using the same
WO2007130299A2 (en) 2006-05-05 2007-11-15 Corning Incorporated Distortion tuning of a quasi-telecentric imaging lens
JP2015087535A (ja) 2013-10-30 2015-05-07 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置
KR102761628B1 (ko) * 2016-09-21 2025-02-03 삼성전자주식회사 어안렌즈 어셈블리 및 이를 포함한 전자장치

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140347740A1 (en) 2012-02-09 2014-11-27 Fujifilm Corporation Optical system for projection and projection-type display apparatus
JP2015049340A (ja) 2013-08-30 2015-03-16 株式会社リコー 投射光学系、それを備えた画像表示装置および画像表示装置の調整方法
JP2016080823A (ja) 2014-10-15 2016-05-16 日東光学株式会社 投射レンズ鏡筒、投射表示装置
JP2017049422A (ja) 2015-09-01 2017-03-09 キヤノン株式会社 投射光学系、及びそれを用いた投射型画像表示装置
JP2017126036A (ja) 2016-01-15 2017-07-20 キヤノン株式会社 投射光学系および投射型表示装置
JP2019015829A (ja) 2017-07-06 2019-01-31 キヤノン株式会社 光学系および画像投射装置

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Publication number Publication date
US20190072838A1 (en) 2019-03-07
JP2019045708A (ja) 2019-03-22
US10571786B2 (en) 2020-02-25

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