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FR1551708A - - Google Patents

Info

Publication number
FR1551708A
FR1551708A FR1551708DA FR1551708A FR 1551708 A FR1551708 A FR 1551708A FR 1551708D A FR1551708D A FR 1551708DA FR 1551708 A FR1551708 A FR 1551708A
Authority
FR
France
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
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 filed Critical
Application granted granted Critical
Publication of FR1551708A publication Critical patent/FR1551708A/fr
Expired 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
    • 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
    • G02B9/14—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - +
    • G02B9/16—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - + all the components being simple

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
FR1551708D 1967-01-23 1968-01-23 Expired FR1551708A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61111867A 1967-01-23 1967-01-23

Publications (1)

Publication Number Publication Date
FR1551708A true FR1551708A (fr) 1968-12-27

Family

ID=24447699

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1551708D Expired FR1551708A (fr) 1967-01-23 1968-01-23

Country Status (3)

Country Link
US (1) US3443864A (fr)
DE (1) DE1982668U (fr)
FR (1) FR1551708A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5459953A (en) * 1977-10-21 1979-05-15 Asahi Optical Co Ltd Achromatic objective lens
DE9003214U1 (de) * 1990-03-20 1990-05-31 Eschenbach Optik GmbH + Co, 8500 Nürnberg Stark vergrößerndes achromatisches Linsensystem
US5596455A (en) * 1995-06-29 1997-01-21 Minnesota Mining And Manufacturing Company Fixed-focus triplet projection lens for overhead projectors

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2736234A (en) * 1956-02-28 Schlumpf
US2453260A (en) * 1947-03-27 1948-11-09 Bausch & Lomb Three element objective lens

Also Published As

Publication number Publication date
US3443864A (en) 1969-05-13
DE1982668U (de) 1968-04-04

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Legal Events

Date Code Title Description
ST Notification of lapse