JP7690809B2 - 光学系、およびプロジェクター - Google Patents

光学系、およびプロジェクター Download PDF

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Publication number
JP7690809B2
JP7690809B2 JP2021127323A JP2021127323A JP7690809B2 JP 7690809 B2 JP7690809 B2 JP 7690809B2 JP 2021127323 A JP2021127323 A JP 2021127323A JP 2021127323 A JP2021127323 A JP 2021127323A JP 7690809 B2 JP7690809 B2 JP 7690809B2
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JP
Japan
Prior art keywords
lens
optical system
reduction side
diaphragm
conditional expression
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2021127323A
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English (en)
Japanese (ja)
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JP2023022443A (ja
JP2023022443A5 (enExample
Inventor
整 平野
康之 木山
浩司 塩川
雄太 伊藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
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Seiko Epson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP2021127323A priority Critical patent/JP7690809B2/ja
Priority to CN202210915683.8A priority patent/CN115704952A/zh
Priority to US17/880,185 priority patent/US12298596B2/en
Publication of JP2023022443A publication Critical patent/JP2023022443A/ja
Publication of JP2023022443A5 publication Critical patent/JP2023022443A5/ja
Application granted granted Critical
Publication of JP7690809B2 publication Critical patent/JP7690809B2/ja
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/60—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having five components only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/62—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having six components only
    • 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
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/22—Telecentric objectives or lens systems

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Projection Apparatus (AREA)
JP2021127323A 2021-08-03 2021-08-03 光学系、およびプロジェクター Active JP7690809B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2021127323A JP7690809B2 (ja) 2021-08-03 2021-08-03 光学系、およびプロジェクター
CN202210915683.8A CN115704952A (zh) 2021-08-03 2022-08-01 光学系统和投影仪
US17/880,185 US12298596B2 (en) 2021-08-03 2022-08-03 Optical system and projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021127323A JP7690809B2 (ja) 2021-08-03 2021-08-03 光学系、およびプロジェクター

Publications (3)

Publication Number Publication Date
JP2023022443A JP2023022443A (ja) 2023-02-15
JP2023022443A5 JP2023022443A5 (enExample) 2024-04-24
JP7690809B2 true JP7690809B2 (ja) 2025-06-11

Family

ID=85181424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021127323A Active JP7690809B2 (ja) 2021-08-03 2021-08-03 光学系、およびプロジェクター

Country Status (3)

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US (1) US12298596B2 (enExample)
JP (1) JP7690809B2 (enExample)
CN (1) CN115704952A (enExample)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015075627A (ja) 2013-10-09 2015-04-20 セイコーエプソン株式会社 投射光学系及び投射型画像表示装置
JP2015111192A (ja) 2013-12-06 2015-06-18 キヤノン株式会社 光学系及びそれを有する撮像装置
US20170351068A1 (en) 2016-06-02 2017-12-07 Calin Technology Co., Ltd. Fixed-focus projection lens

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005258064A (ja) * 2004-03-11 2005-09-22 Konica Minolta Photo Imaging Inc 撮像装置
JP2010079252A (ja) * 2008-09-01 2010-04-08 Fujinon Corp 小型投写レンズおよびこれを用いた投写型表示装置
JP5479702B2 (ja) 2008-10-07 2014-04-23 富士フイルム株式会社 撮像レンズおよび撮像装置
US7830620B2 (en) 2008-10-07 2010-11-09 Fujinon Corporation Imaging lens and imaging apparatus
JP5510113B2 (ja) * 2010-06-23 2014-06-04 株式会社ニコン 撮影レンズ、撮影レンズを備えた光学機器、撮影レンズの製造方法
JP2014240918A (ja) * 2013-06-12 2014-12-25 富士フイルム株式会社 撮像レンズおよび撮像レンズを備えた撮像装置
CN205679841U (zh) * 2016-06-07 2016-11-09 佳凌科技股份有限公司 定焦投影镜头

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015075627A (ja) 2013-10-09 2015-04-20 セイコーエプソン株式会社 投射光学系及び投射型画像表示装置
JP2015111192A (ja) 2013-12-06 2015-06-18 キヤノン株式会社 光学系及びそれを有する撮像装置
US20170351068A1 (en) 2016-06-02 2017-12-07 Calin Technology Co., Ltd. Fixed-focus projection lens

Also Published As

Publication number Publication date
JP2023022443A (ja) 2023-02-15
CN115704952A (zh) 2023-02-17
US20230054195A1 (en) 2023-02-23
US12298596B2 (en) 2025-05-13

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