JPH0577043B2 - - Google Patents

Info

Publication number
JPH0577043B2
JPH0577043B2 JP63085155A JP8515588A JPH0577043B2 JP H0577043 B2 JPH0577043 B2 JP H0577043B2 JP 63085155 A JP63085155 A JP 63085155A JP 8515588 A JP8515588 A JP 8515588A JP H0577043 B2 JPH0577043 B2 JP H0577043B2
Authority
JP
Japan
Prior art keywords
lens
group lens
group
power
projection
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.)
Expired - Lifetime
Application number
JP63085155A
Other languages
English (en)
Japanese (ja)
Other versions
JPH01257808A (ja
Inventor
Takayuki Yoshioka
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP63085155A priority Critical patent/JPH01257808A/ja
Priority to US07/293,152 priority patent/US4989961A/en
Publication of JPH01257808A publication Critical patent/JPH01257808A/ja
Publication of JPH0577043B2 publication Critical patent/JPH0577043B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP63085155A 1988-04-08 1988-04-08 プロジェクションテレビ用投影レンズ Granted JPH01257808A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP63085155A JPH01257808A (ja) 1988-04-08 1988-04-08 プロジェクションテレビ用投影レンズ
US07/293,152 US4989961A (en) 1988-04-08 1989-01-03 Projection lens systems for use in projection television

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63085155A JPH01257808A (ja) 1988-04-08 1988-04-08 プロジェクションテレビ用投影レンズ

Publications (2)

Publication Number Publication Date
JPH01257808A JPH01257808A (ja) 1989-10-13
JPH0577043B2 true JPH0577043B2 (en]) 1993-10-25

Family

ID=13850777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63085155A Granted JPH01257808A (ja) 1988-04-08 1988-04-08 プロジェクションテレビ用投影レンズ

Country Status (2)

Country Link
US (1) US4989961A (en])
JP (1) JPH01257808A (en])

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148320A (en) * 1990-04-23 1992-09-15 Mitsubishi Denki Kabushiki Kaisha Projection lens
JPH07111501B2 (ja) * 1990-06-15 1995-11-29 キヤノン株式会社 ｆθレンズ及びそれを用いた画像形成装置
JP3040187B2 (ja) * 1991-04-11 2000-05-08 パイオニア株式会社 投影レンズ
JP2629095B2 (ja) * 1991-09-13 1997-07-09 三菱電機株式会社 投写レンズ
US5572364A (en) * 1991-09-13 1996-11-05 Mitsubishi Denki Kabushiki Kaisha Projection lens system
JP3224046B2 (ja) * 1993-02-16 2001-10-29 富士写真光機株式会社 投影レンズ
US5309283A (en) * 1993-03-30 1994-05-03 U.S. Precision Lens Incorporated Hybrid, color-corrected, projection TV lens system
KR0141805B1 (ko) * 1994-12-10 1998-08-17 이헌조 프로젝션 렌즈
DE69629257T2 (de) * 1995-09-21 2004-04-22 3M Innovative Properties Co., St. Paul Linsensystem für Fernsehprojektionsvorrichtung
JPH09304694A (ja) * 1995-11-07 1997-11-28 Nikon Corp 投射レンズ系及びそれを備えた投射装置
US5815735A (en) * 1996-04-29 1998-09-29 Compaq Computer Corporation Portable computer with removable display screen using removably mateable connectors to form the sole supporting interconnection between the computer base portion and display screen structure
JPH10253883A (ja) * 1997-03-07 1998-09-25 Fuji Photo Optical Co Ltd 投影レンズ
JP2002519707A (ja) 1998-06-24 2002-07-02 ユーエス プレシジョン レンズ インコーポレイテッド 改良された変調伝達関数を備えた投映テレビジョンレンズ系
WO2005083488A1 (en) * 2004-02-19 2005-09-09 Thomson Licensing A robust family of microdisplay projection lenses
CN106443970B (zh) * 2016-10-13 2019-03-26 广东弘景光电科技股份有限公司 低畸变光学系统及其应用的镜头
CN112505900B (zh) * 2020-12-22 2025-05-09 江西欧菲光学有限公司 光学系统、取像模组及电子设备
CN113219628B (zh) * 2021-04-19 2023-12-15 江西欧菲光学有限公司 光学系统、取像模组及电子设备

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6285212A (ja) * 1985-10-09 1987-04-18 Fuji Photo Optical Co Ltd 屈折式投影レンズ
US4682862A (en) * 1986-01-17 1987-07-28 U.S. Precision Lens Incorporated Projection lens

Also Published As

Publication number Publication date
US4989961A (en) 1991-02-05
JPH01257808A (ja) 1989-10-13

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