JPH0310925B2 - - Google Patents

Info

Publication number
JPH0310925B2
JPH0310925B2 JP10960480A JP10960480A JPH0310925B2 JP H0310925 B2 JPH0310925 B2 JP H0310925B2 JP 10960480 A JP10960480 A JP 10960480A JP 10960480 A JP10960480 A JP 10960480A JP H0310925 B2 JPH0310925 B2 JP H0310925B2
Authority
JP
Japan
Prior art keywords
group
lens
screen
optical system
refractive power
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
JP10960480A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5734515A (en
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 JP10960480A priority Critical patent/JPS5734515A/ja
Priority to US06/347,032 priority patent/US4577935A/en
Publication of JPS5734515A publication Critical patent/JPS5734515A/ja
Publication of JPH0310925B2 publication Critical patent/JPH0310925B2/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
    • G02B13/18—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
    • 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
    • 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)
JP10960480A 1980-03-03 1980-08-09 Refracting index type optical system for video projector Granted JPS5734515A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10960480A JPS5734515A (en) 1980-08-09 1980-08-09 Refracting index type optical system for video projector
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
JP10960480A JPS5734515A (en) 1980-08-09 1980-08-09 Refracting index type optical system for video projector

Publications (2)

Publication Number Publication Date
JPS5734515A JPS5734515A (en) 1982-02-24
JPH0310925B2 true JPH0310925B2 (enrdf_load_stackoverflow) 1991-02-14

Family

ID=14514487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10960480A Granted JPS5734515A (en) 1980-03-03 1980-08-09 Refracting index type optical system for video projector

Country Status (1)

Country Link
JP (1) JPS5734515A (enrdf_load_stackoverflow)

Families Citing this family (14)

* 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
JPS58198017A (ja) * 1982-05-15 1983-11-17 Hitachi Ltd 投影レンズ
JPS58220115A (ja) * 1982-06-17 1983-12-21 Canon Inc 広角レンズ系
JPS59133518A (ja) * 1983-01-20 1984-07-31 Matsushita Electric Ind Co Ltd 光路折り曲げ式投影レンズ
JPS59133517A (ja) * 1983-01-21 1984-07-31 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
JPS6073514A (ja) * 1983-09-30 1985-04-25 Hitachi Ltd プロジェクションテレビ用レンズ
JPS60177478U (ja) * 1984-05-07 1985-11-25 日本電気株式会社 テ−ブルタツプ
JP2617908B2 (ja) * 1984-09-27 1997-06-11 松下電器産業株式会社 投写光学装置
JPH0627895B2 (ja) * 1984-12-20 1994-04-13 松下電器産業株式会社 投写レンズ
US4690515A (en) * 1984-12-20 1987-09-01 Matsushita Electric Industrial Co., Ltd. Compact projection lens
JPH0627896B2 (ja) * 1985-02-06 1994-04-13 松下電器産業株式会社 投写レンズ
NL8500453A (nl) * 1985-02-18 1986-09-16 Philips Nv Projektielenzenstelsel.

Also Published As

Publication number Publication date
JPS5734515A (en) 1982-02-24

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