BE741427A - - Google Patents

Info

Publication number
BE741427A
BE741427A BE741427DA BE741427A BE 741427 A BE741427 A BE 741427A BE 741427D A BE741427D A BE 741427DA BE 741427 A BE741427 A BE 741427A
Authority
BE
Belgium
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
Publication of BE741427A publication Critical patent/BE741427A/xx

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
    • 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 -
    • G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only
    • G02B9/36—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only arranged + -- +
    • G02B9/38—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only arranged + -- + both - components being meniscus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
BE741427D 1968-11-07 1969-11-07 BE741427A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77414168A 1968-11-07 1968-11-07

Publications (1)

Publication Number Publication Date
BE741427A true BE741427A (xx) 1970-05-08

Family

ID=25100357

Family Applications (1)

Application Number Title Priority Date Filing Date
BE741427D BE741427A (xx) 1968-11-07 1969-11-07

Country Status (11)

Country Link
US (1) US3619036A (xx)
JP (1) JPS498336B1 (xx)
AT (1) AT316165B (xx)
BE (1) BE741427A (xx)
CA (1) CA925731A (xx)
CH (1) CH520943A (xx)
DE (1) DE1955667C3 (xx)
FR (1) FR2022792A1 (xx)
GB (1) GB1252086A (xx)
NL (1) NL166793C (xx)
SE (1) SE345526B (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807836A (en) * 1973-01-02 1974-04-30 Polaroid Corp Compact four element objective lenses of plastic and glass
JPS5485118U (xx) * 1977-11-24 1979-06-16
SE468335B (sv) * 1988-09-15 1992-12-14 Nova Onab Optica Ab Projektionsoptik
JP3341934B2 (ja) * 1993-10-07 2002-11-05 富士写真光機株式会社 結像レンズ
US6680795B2 (en) * 2000-08-23 2004-01-20 The United States Of America As Represented By The Secretary Of The Interior Underwater microscope system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190524391A (en) * 1905-11-25 1906-09-13 Harold Dennis Taylor Improvements in Photographic Lenses.
US2338614A (en) * 1942-06-17 1944-01-04 Eastman Kodak Co Lens
US2503789A (en) * 1946-09-21 1950-04-11 Eastman Kodak Co Focusing objective lens

Also Published As

Publication number Publication date
FR2022792A1 (xx) 1970-08-07
AT316165B (de) 1974-06-25
CA925731A (en) 1973-05-08
NL6916842A (xx) 1970-05-11
NL166793C (nl) 1981-09-15
DE1955667C3 (de) 1974-05-16
GB1252086A (xx) 1971-11-03
US3619036A (en) 1971-11-09
JPS498336B1 (xx) 1974-02-26
NL166793B (nl) 1981-04-15
DE1955667A1 (de) 1970-07-30
CH520943A (de) 1972-03-31
SE345526B (xx) 1972-05-29
DE1955667B2 (de) 1973-10-25

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: POLAROID CORP.

Effective date: 19881130