JPH0358087B2 - - Google Patents

Info

Publication number
JPH0358087B2
JPH0358087B2 JP194782A JP194782A JPH0358087B2 JP H0358087 B2 JPH0358087 B2 JP H0358087B2 JP 194782 A JP194782 A JP 194782A JP 194782 A JP194782 A JP 194782A JP H0358087 B2 JPH0358087 B2 JP H0358087B2
Authority
JP
Japan
Prior art keywords
group
optical system
lens
focal length
refractive
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
Application number
JP194782A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58118616A (ja
Inventor
Kazuo Yamakawa
Toshihide Doi
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.)
Minolta Co Ltd
Original Assignee
Minolta Co Ltd
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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP194782A priority Critical patent/JPS58118616A/ja
Priority to US06/347,032 priority patent/US4577935A/en
Publication of JPS58118616A publication Critical patent/JPS58118616A/ja
Publication of JPH0358087B2 publication Critical patent/JPH0358087B2/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
    • 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 -
    • G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Transforming Electric Information Into Light Information (AREA)
JP194782A 1980-03-03 1982-01-08 ビデオプロジエクタ−用屈折型光学系 Granted JPS58118616A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP194782A JPS58118616A (ja) 1982-01-08 1982-01-08 ビデオプロジエクタ−用屈折型光学系
US06/347,032 US4577935A (en) 1980-03-03 1982-02-08 Video projector lens system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP194782A JPS58118616A (ja) 1982-01-08 1982-01-08 ビデオプロジエクタ−用屈折型光学系

Publications (2)

Publication Number Publication Date
JPS58118616A JPS58118616A (ja) 1983-07-14
JPH0358087B2 true JPH0358087B2 (US20090163788A1-20090625-C00002.png) 1991-09-04

Family

ID=11515802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP194782A Granted JPS58118616A (ja) 1980-03-03 1982-01-08 ビデオプロジエクタ−用屈折型光学系

Country Status (1)

Country Link
JP (1) JPS58118616A (US20090163788A1-20090625-C00002.png)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125007A (ja) * 1982-01-20 1983-07-25 Matsushita Electric Ind Co Ltd 投影レンズ
JPS58181009A (ja) * 1982-04-16 1983-10-22 Matsushita Electric Ind Co Ltd 投影レンズ
JPS6049311A (ja) * 1983-08-29 1985-03-18 Nippon Kogaku Kk <Nikon> 投影レンズ
JPS6067914A (ja) * 1983-09-22 1985-04-18 Konishiroku Photo Ind Co Ltd テレビプロジェクタ用投影レンズ
US4697892A (en) * 1983-10-18 1987-10-06 U.S. Precision Lens, Inc. Projection lens
JPS60177478U (ja) * 1984-05-07 1985-11-25 日本電気株式会社 テ−ブルタツプ
US4801196A (en) * 1984-08-21 1989-01-31 U.S. Precision Lens, Incorporated Wide angle projection lens
JPH0664233B2 (ja) * 1985-03-30 1994-08-22 松下電器産業株式会社 投写レンズ
US4815831A (en) * 1985-07-11 1989-03-28 U.S. Precision Lens, Incorporated Projection lens with color correction
US4682862A (en) * 1986-01-17 1987-07-28 U.S. Precision Lens Incorporated Projection lens
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
US4755028A (en) * 1986-10-14 1988-07-05 U.S Precision Lens, Incorporated Projection lens with an aspherical corrector lens element

Also Published As

Publication number Publication date
JPS58118616A (ja) 1983-07-14

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