JP7363437B2 - 投写光学系およびプロジェクター - Google Patents

投写光学系およびプロジェクター Download PDF

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Publication number
JP7363437B2
JP7363437B2 JP2019221006A JP2019221006A JP7363437B2 JP 7363437 B2 JP7363437 B2 JP 7363437B2 JP 2019221006 A JP2019221006 A JP 2019221006A JP 2019221006 A JP2019221006 A JP 2019221006A JP 7363437 B2 JP7363437 B2 JP 7363437B2
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JP
Japan
Prior art keywords
optical system
lens
refraction
sphere
optical
Prior art date
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Active
Application number
JP2019221006A
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English (en)
Japanese (ja)
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JP2021089401A5 (https=
JP2021089401A (ja
Inventor
博隆 柳澤
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
Original Assignee
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 JP2019221006A priority Critical patent/JP7363437B2/ja
Priority to US17/112,157 priority patent/US20210173292A1/en
Publication of JP2021089401A publication Critical patent/JP2021089401A/ja
Publication of JP2021089401A5 publication Critical patent/JP2021089401A5/ja
Application granted granted Critical
Publication of JP7363437B2 publication Critical patent/JP7363437B2/ja
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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
    • G03B21/28—Reflectors in projection beam
    • 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
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0804—Catadioptric systems using two curved mirrors
    • G02B17/0816—Catadioptric systems using two curved mirrors off-axis or unobscured systems in which not all of the mirrors share a common axis of rotational symmetry, e.g. at least one of the mirrors is warped, tilted or decentered with respect to the other elements
    • 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
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G03B21/006—Projectors using an electronic spatial light modulator but not peculiar thereto using LCD's
    • 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
    • G03B21/20—Lamp housings
    • G03B21/2073—Polarisers in the lamp house

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Projection Apparatus (AREA)
JP2019221006A 2019-12-06 2019-12-06 投写光学系およびプロジェクター Active JP7363437B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2019221006A JP7363437B2 (ja) 2019-12-06 2019-12-06 投写光学系およびプロジェクター
US17/112,157 US20210173292A1 (en) 2019-12-06 2020-12-04 Projection system and projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019221006A JP7363437B2 (ja) 2019-12-06 2019-12-06 投写光学系およびプロジェクター

Publications (3)

Publication Number Publication Date
JP2021089401A JP2021089401A (ja) 2021-06-10
JP2021089401A5 JP2021089401A5 (https=) 2022-08-05
JP7363437B2 true JP7363437B2 (ja) 2023-10-18

Family

ID=76208991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019221006A Active JP7363437B2 (ja) 2019-12-06 2019-12-06 投写光学系およびプロジェクター

Country Status (2)

Country Link
US (1) US20210173292A1 (https=)
JP (1) JP7363437B2 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12399422B2 (en) * 2020-11-30 2025-08-26 Sun Yang Optics Development Co., Ltd. Projection optical system with a concave reflector in the projection lens
JP7676969B2 (ja) * 2021-06-07 2025-05-15 株式会社リコー 投射光学系および投射型画像表示装置
CN115729018A (zh) * 2021-08-31 2023-03-03 中强光电股份有限公司 投影镜头及投影装置
JP2023105386A (ja) * 2022-01-19 2023-07-31 セイコーエプソン株式会社 投写光学系、およびプロジェクター

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009134254A (ja) 2007-11-06 2009-06-18 Seiko Epson Corp 投射型画像表示装置
US20150346469A1 (en) 2014-05-27 2015-12-03 Yi-Jou Lin Projector, projecting lens of the projector and method of projecting images
US10025092B1 (en) 2017-10-05 2018-07-17 Jau Laang Industrial Co., Ltd. Projector and projecting lens thereof
JP2020034690A (ja) 2018-08-29 2020-03-05 リコーインダストリアルソリューションズ株式会社 投射光学系および画像投射装置
JP2021004970A (ja) 2019-06-26 2021-01-14 リコーインダストリアルソリューションズ株式会社 投射光学系及び画像投射装置
JP2021036260A (ja) 2019-08-30 2021-03-04 キヤノン株式会社 投射レンズとそれを有する画像投影装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6533988B2 (en) * 1995-05-02 2003-03-18 Borealis Technology Oy Rotational moulding process of ethylene polymers or copolymers having a controlled particle size and morphology

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009134254A (ja) 2007-11-06 2009-06-18 Seiko Epson Corp 投射型画像表示装置
US20150346469A1 (en) 2014-05-27 2015-12-03 Yi-Jou Lin Projector, projecting lens of the projector and method of projecting images
US10025092B1 (en) 2017-10-05 2018-07-17 Jau Laang Industrial Co., Ltd. Projector and projecting lens thereof
JP2020034690A (ja) 2018-08-29 2020-03-05 リコーインダストリアルソリューションズ株式会社 投射光学系および画像投射装置
JP2021004970A (ja) 2019-06-26 2021-01-14 リコーインダストリアルソリューションズ株式会社 投射光学系及び画像投射装置
JP2021036260A (ja) 2019-08-30 2021-03-04 キヤノン株式会社 投射レンズとそれを有する画像投影装置

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Publication number Publication date
US20210173292A1 (en) 2021-06-10
JP2021089401A (ja) 2021-06-10

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