JPH0320731B2 - - Google Patents

Info

Publication number
JPH0320731B2
JPH0320731B2 JP60038697A JP3869785A JPH0320731B2 JP H0320731 B2 JPH0320731 B2 JP H0320731B2 JP 60038697 A JP60038697 A JP 60038697A JP 3869785 A JP3869785 A JP 3869785A JP H0320731 B2 JPH0320731 B2 JP H0320731B2
Authority
JP
Japan
Prior art keywords
lens
screen
focal length
plastic
becomes
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
JP60038697A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61200521A (ja
Inventor
Norikazu Arai
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP60038697A priority Critical patent/JPS61200521A/ja
Priority to US06/833,342 priority patent/US4889417A/en
Publication of JPS61200521A publication Critical patent/JPS61200521A/ja
Publication of JPH0320731B2 publication Critical patent/JPH0320731B2/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
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/06—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of fluids in transparent cells
    • 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)
JP60038697A 1985-03-01 1985-03-01 テレビプロジエクタ−用投影レンズ Granted JPS61200521A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP60038697A JPS61200521A (ja) 1985-03-01 1985-03-01 テレビプロジエクタ−用投影レンズ
US06/833,342 US4889417A (en) 1985-03-01 1986-02-25 Projection lens for television projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60038697A JPS61200521A (ja) 1985-03-01 1985-03-01 テレビプロジエクタ−用投影レンズ

Publications (2)

Publication Number Publication Date
JPS61200521A JPS61200521A (ja) 1986-09-05
JPH0320731B2 true JPH0320731B2 (en]) 1991-03-20

Family

ID=12532497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60038697A Granted JPS61200521A (ja) 1985-03-01 1985-03-01 テレビプロジエクタ−用投影レンズ

Country Status (2)

Country Link
US (1) US4889417A (en])
JP (1) JPS61200521A (en])

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5055922A (en) * 1990-03-07 1991-10-08 U.S. Precision Lens Incorporated Color tv projection lens system
KR100481980B1 (ko) * 2002-04-26 2005-04-14 (주)디지탈옵틱 프로젝션 티브이의 투사 렌즈 시스템
RU2244330C2 (ru) * 2003-02-18 2005-01-10 Самсунг Электроникс Ко., Лтд Объектив
RU2258247C2 (ru) * 2003-03-17 2005-08-10 Бармичева Галина Викторовна Объектив

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4348081A (en) * 1979-09-05 1982-09-07 U.S. Precision Lens Inc. Projection lens
JPS59133517A (ja) * 1983-01-21 1984-07-31 Nippon Kogaku Kk <Nikon> 投影レンズ
JPS59142513A (ja) * 1983-02-04 1984-08-15 Hitachi Ltd 画像投射装置
JPS6049311A (ja) * 1983-08-29 1985-03-18 Nippon Kogaku Kk <Nikon> 投影レンズ
US4697892A (en) * 1983-10-18 1987-10-06 U.S. Precision Lens, Inc. Projection lens
JPS60220306A (ja) * 1984-04-18 1985-11-05 Konishiroku Photo Ind Co Ltd テレビプロジエクタ−用投影レンズ
JPH073504B2 (ja) * 1984-12-05 1995-01-18 松下電器産業株式会社 投写レンズ
US4682862A (en) * 1986-01-17 1987-07-28 U.S. Precision Lens Incorporated Projection lens

Also Published As

Publication number Publication date
US4889417A (en) 1989-12-26
JPS61200521A (ja) 1986-09-05

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