CH392921A - Variable focal length optical system - Google Patents

Variable focal length optical system

Info

Publication number
CH392921A
CH392921A CH1394062A CH1394062A CH392921A CH 392921 A CH392921 A CH 392921A CH 1394062 A CH1394062 A CH 1394062A CH 1394062 A CH1394062 A CH 1394062A CH 392921 A CH392921 A CH 392921A
Authority
CH
Switzerland
Prior art keywords
optical system
focal length
variable focal
length optical
variable
Prior art date
Application number
CH1394062A
Other languages
French (fr)
Original Assignee
Soc Optique Mec Haute Prec
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 Soc Optique Mec Haute Prec filed Critical Soc Optique Mec Haute Prec
Publication of CH392921A publication Critical patent/CH392921A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/142—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having two groups only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/143—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
CH1394062A 1962-02-13 1962-11-28 Variable focal length optical system CH392921A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR887806A FR1322227A (en) 1962-02-13 1962-02-13 Variable focal length optical system

Publications (1)

Publication Number Publication Date
CH392921A true CH392921A (en) 1965-05-31

Family

ID=8772540

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1394062A CH392921A (en) 1962-02-13 1962-11-28 Variable focal length optical system

Country Status (3)

Country Link
CH (1) CH392921A (en)
FR (1) FR1322227A (en)
GB (1) GB1028691A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1196392B (en) * 1963-07-06 1965-07-08 Leitz Ernst Gmbh Pancratic lens for microscopes
FR2193210B1 (en) * 1972-07-21 1976-06-11 Labo Electronique Physique

Also Published As

Publication number Publication date
FR1322227A (en) 1963-03-29
GB1028691A (en) 1966-05-04

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