JPH0568686B2 - - Google Patents

Info

Publication number
JPH0568686B2
JPH0568686B2 JP3701084A JP3701084A JPH0568686B2 JP H0568686 B2 JPH0568686 B2 JP H0568686B2 JP 3701084 A JP3701084 A JP 3701084A JP 3701084 A JP3701084 A JP 3701084A JP H0568686 B2 JPH0568686 B2 JP H0568686B2
Authority
JP
Japan
Prior art keywords
lens
group
meniscus lens
convex
surface facing
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
JP3701084A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60181716A (ja
Inventor
Koichi Shinohara
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP3701084A priority Critical patent/JPS60181716A/ja
Publication of JPS60181716A publication Critical patent/JPS60181716A/ja
Publication of JPH0568686B2 publication Critical patent/JPH0568686B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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 -
    • G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP3701084A 1984-02-28 1984-02-28 フアクシミリ用ガウス型レンズ Granted JPS60181716A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3701084A JPS60181716A (ja) 1984-02-28 1984-02-28 フアクシミリ用ガウス型レンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3701084A JPS60181716A (ja) 1984-02-28 1984-02-28 フアクシミリ用ガウス型レンズ

Publications (2)

Publication Number Publication Date
JPS60181716A JPS60181716A (ja) 1985-09-17
JPH0568686B2 true JPH0568686B2 (en:Method) 1993-09-29

Family

ID=12485707

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3701084A Granted JPS60181716A (ja) 1984-02-28 1984-02-28 フアクシミリ用ガウス型レンズ

Country Status (1)

Country Link
JP (1) JPS60181716A (en:Method)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758072A (en) * 1986-11-20 1988-07-19 Xerox Corporation Gas zoom lens assembly
JPH02256013A (ja) * 1988-10-12 1990-10-16 Asahi Optical Co Ltd 読取り用レンズ
JP3254165B2 (ja) * 1997-05-07 2002-02-04 株式会社リコー ガウス型レンズ

Also Published As

Publication number Publication date
JPS60181716A (ja) 1985-09-17

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