JPS57108818A - Projection lens - Google Patents

Projection lens

Info

Publication number
JPS57108818A
JPS57108818A JP18369780A JP18369780A JPS57108818A JP S57108818 A JPS57108818 A JP S57108818A JP 18369780 A JP18369780 A JP 18369780A JP 18369780 A JP18369780 A JP 18369780A JP S57108818 A JPS57108818 A JP S57108818A
Authority
JP
Japan
Prior art keywords
lens
positive lens
positive
satisfied
optical axis
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.)
Pending
Application number
JP18369780A
Other languages
Japanese (ja)
Inventor
Makoto Uehara
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.)
Nikon Corp
Original Assignee
Nikon Corp
Nippon Kogaku KK
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 Nikon Corp, Nippon Kogaku KK filed Critical Nikon Corp
Priority to JP18369780A priority Critical patent/JPS57108818A/en
Publication of JPS57108818A publication Critical patent/JPS57108818A/en
Pending 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)

Abstract

PURPOSE:To satisfactorily compensate the spherical aberration and the coma aberration and to ensure the easy working property, by using a positive lens, another positive lens and a negative lens in that order from the screen side and then giving the conditions to the parameter. CONSTITUTION:The 1st positive lens L1 (refractive power P1 and thickness D1), the 2nd positive lens L2 (refractive power P2 and thickness D2) and the 3rd negative lens L3 are set in that order from the screen side. The conditions 2.2>P2/ P1>1.5 and 1.8>D2/D1>0.8 are satisfied. At the same time, the aspheric surfaces are given to the lenses L1 and L2. For the aspheric surface form, 1.2> (A-S)/P2>0.3 is satisfied for the difference in the direction of the optical axis between the aspherical surface at the periphery of the effective diameter of the aspheric surface form of the lens L2 and the reference spherical surface having a prescribed vertex curvature radius when the direction where the curvature of the corresponding aspherical surface is reduced as it goes further from the optical axis is set positive.
JP18369780A 1980-12-26 1980-12-26 Projection lens Pending JPS57108818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18369780A JPS57108818A (en) 1980-12-26 1980-12-26 Projection lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18369780A JPS57108818A (en) 1980-12-26 1980-12-26 Projection lens

Publications (1)

Publication Number Publication Date
JPS57108818A true JPS57108818A (en) 1982-07-07

Family

ID=16140353

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18369780A Pending JPS57108818A (en) 1980-12-26 1980-12-26 Projection lens

Country Status (1)

Country Link
JP (1) JPS57108818A (en)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125007A (en) * 1982-01-20 1983-07-25 Matsushita Electric Ind Co Ltd Projection lens
JPS59133517A (en) * 1983-01-21 1984-07-31 Nippon Kogaku Kk <Nikon> Projection lens
JPS6067914A (en) * 1983-09-22 1985-04-18 Konishiroku Photo Ind Co Ltd Projection lens for television projector
JPS6073514A (en) * 1983-09-30 1985-04-25 Hitachi Ltd Lens for projection television
US4564269A (en) * 1983-08-29 1986-01-14 Nippon Kogaku K.K. Projection lens
JPS6180119A (en) * 1984-09-27 1986-04-23 Matsushita Electric Ind Co Ltd Projecting optical device
JPS61147213A (en) * 1984-12-20 1986-07-04 Matsushita Electric Ind Co Ltd Compact projection lens
JPS61180214A (en) * 1985-02-06 1986-08-12 Matsushita Electric Ind Co Ltd Compact projection lens
JPS61189513A (en) * 1985-02-18 1986-08-23 エヌ・ベー・フイリツプス・フルーイランペンフアブリケン Projection lens system
US4615589A (en) * 1983-10-19 1986-10-07 Matsushita Electric Industrial Co., Ltd. Projection lens system for projection television apparatus
US4682862A (en) * 1986-01-17 1987-07-28 U.S. Precision Lens Incorporated Projection lens
US4685774A (en) * 1986-01-17 1987-08-11 U.S. Precision Lens, Incorporated Projection lens
US4690515A (en) * 1984-12-20 1987-09-01 Matsushita Electric Industrial Co., Ltd. Compact projection lens
US4697892A (en) * 1983-10-18 1987-10-06 U.S. Precision Lens, Inc. Projection lens
US4704009A (en) * 1984-12-05 1987-11-03 Matsushita Electric Industrial Co., Ltd. Projection lens
US4733953A (en) * 1985-02-06 1988-03-29 Matsushita Electric Industrial Co., Ltd. Color corrected projection lens
US4755028A (en) * 1986-10-14 1988-07-05 U.S Precision Lens, Incorporated Projection lens with an aspherical corrector lens element
US4776681A (en) * 1986-01-17 1988-10-11 U.S. Precision Lens, Incorporated Projection lens
US4801196A (en) * 1984-08-21 1989-01-31 U.S. Precision Lens, Incorporated Wide angle projection lens
US4815831A (en) * 1985-07-11 1989-03-28 U.S. Precision Lens, Incorporated Projection lens with color correction
US6034824A (en) * 1997-02-17 2000-03-07 Lg Electronics, Inc. Projection lens
CN105423951A (en) * 2015-12-22 2016-03-23 中国科学院长春光学精密机械与物理研究所 Etalon of convex reference surface with long radius of curvature
CN106443977A (en) * 2015-08-06 2017-02-22 亚太精密工业(深圳)有限公司 Wide-angle lens
JP2017519254A (en) * 2014-08-28 2017-07-13 ハンズ レーザー テクノロジー インダストリー グループ カンパニー リミテッド Optical lens
CN109143539A (en) * 2017-06-27 2019-01-04 佳能株式会社 Optical system and image pick-up device including the optical system

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125007A (en) * 1982-01-20 1983-07-25 Matsushita Electric Ind Co Ltd Projection lens
US4548480A (en) * 1982-01-20 1985-10-22 Matsushita Electric Industrial Co., Ltd. Projection lens apparatus
JPS6218894B2 (en) * 1982-01-20 1987-04-24 Matsushita Electric Ind Co Ltd
US4603950A (en) * 1983-01-21 1986-08-05 Nippon Kogaku K. K. Projection lens
JPS59133517A (en) * 1983-01-21 1984-07-31 Nippon Kogaku Kk <Nikon> Projection lens
JPH0423764B2 (en) * 1983-01-21 1992-04-23 Nippon Kogaku Kk
US4564269A (en) * 1983-08-29 1986-01-14 Nippon Kogaku K.K. Projection lens
JPH0433005B2 (en) * 1983-09-22 1992-06-01 Konishiroku Photo Ind
JPS6067914A (en) * 1983-09-22 1985-04-18 Konishiroku Photo Ind Co Ltd Projection lens for television projector
JPH0578010B2 (en) * 1983-09-30 1993-10-27 Hitachi Ltd
JPS6073514A (en) * 1983-09-30 1985-04-25 Hitachi Ltd Lens for projection television
US4697892A (en) * 1983-10-18 1987-10-06 U.S. Precision Lens, Inc. Projection lens
US4615589A (en) * 1983-10-19 1986-10-07 Matsushita Electric Industrial Co., Ltd. Projection lens system for projection television apparatus
US4801196A (en) * 1984-08-21 1989-01-31 U.S. Precision Lens, Incorporated Wide angle projection lens
JPS6180119A (en) * 1984-09-27 1986-04-23 Matsushita Electric Ind Co Ltd Projecting optical device
US4704009A (en) * 1984-12-05 1987-11-03 Matsushita Electric Industrial Co., Ltd. Projection lens
US4690515A (en) * 1984-12-20 1987-09-01 Matsushita Electric Industrial Co., Ltd. Compact projection lens
JPS61147213A (en) * 1984-12-20 1986-07-04 Matsushita Electric Ind Co Ltd Compact projection lens
US4733953A (en) * 1985-02-06 1988-03-29 Matsushita Electric Industrial Co., Ltd. Color corrected projection lens
JPS61180214A (en) * 1985-02-06 1986-08-12 Matsushita Electric Ind Co Ltd Compact projection lens
JPS61189513A (en) * 1985-02-18 1986-08-23 エヌ・ベー・フイリツプス・フルーイランペンフアブリケン Projection lens system
US4815831A (en) * 1985-07-11 1989-03-28 U.S. Precision Lens, Incorporated Projection lens with color correction
US4776681A (en) * 1986-01-17 1988-10-11 U.S. Precision Lens, Incorporated Projection lens
US4685774A (en) * 1986-01-17 1987-08-11 U.S. Precision Lens, Incorporated Projection lens
US4682862A (en) * 1986-01-17 1987-07-28 U.S. Precision Lens Incorporated Projection lens
US4755028A (en) * 1986-10-14 1988-07-05 U.S Precision Lens, Incorporated Projection lens with an aspherical corrector lens element
US6034824A (en) * 1997-02-17 2000-03-07 Lg Electronics, Inc. Projection lens
JP2017519254A (en) * 2014-08-28 2017-07-13 ハンズ レーザー テクノロジー インダストリー グループ カンパニー リミテッド Optical lens
CN106443977A (en) * 2015-08-06 2017-02-22 亚太精密工业(深圳)有限公司 Wide-angle lens
CN106443977B (en) * 2015-08-06 2018-10-09 亚太精密工业(深圳)有限公司 Wide-angle lens
CN105423951A (en) * 2015-12-22 2016-03-23 中国科学院长春光学精密机械与物理研究所 Etalon of convex reference surface with long radius of curvature
CN109143539A (en) * 2017-06-27 2019-01-04 佳能株式会社 Optical system and image pick-up device including the optical system
CN109143539B (en) * 2017-06-27 2022-02-22 佳能株式会社 Optical system and image pickup apparatus including the same

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