FR1322227A - Variable focal length optical system - Google Patents

Variable focal length optical system

Info

Publication number
FR1322227A
FR1322227A FR887806A FR887806A FR1322227A FR 1322227 A FR1322227 A FR 1322227A FR 887806 A FR887806 A FR 887806A FR 887806 A FR887806 A FR 887806A FR 1322227 A FR1322227 A FR 1322227A
Authority
FR
France
Prior art keywords
optical system
focal length
variable focal
length optical
variable
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
FR887806A
Other languages
French (fr)
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.)
Societe dOptique et de Mecanique de Haute Precision
Original Assignee
Societe dOptique et de Mecanique de Haute Precision
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 Societe dOptique et de Mecanique de Haute Precision filed Critical Societe dOptique et de Mecanique de Haute Precision
Priority to FR887806A priority Critical patent/FR1322227A/en
Priority to CH1394062A priority patent/CH392921A/en
Priority to GB225/63A priority patent/GB1028691A/en
Application granted granted Critical
Publication of FR1322227A publication Critical patent/FR1322227A/en
Expired legal-status Critical Current

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)
FR887806A 1962-02-13 1962-02-13 Variable focal length optical system Expired FR1322227A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR887806A FR1322227A (en) 1962-02-13 1962-02-13 Variable focal length optical system
CH1394062A CH392921A (en) 1962-02-13 1962-11-28 Variable focal length optical system
GB225/63A GB1028691A (en) 1962-02-13 1963-01-02 Optical system of variable focal length

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
FR1322227A true FR1322227A (en) 1963-03-29

Family

ID=8772540

Family Applications (1)

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

Country Status (3)

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

Cited By (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
FR2193210A1 (en) * 1972-07-21 1974-02-15 Labo Electronique Physique

Cited By (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
FR2193210A1 (en) * 1972-07-21 1974-02-15 Labo Electronique Physique

Also Published As

Publication number Publication date
CH392921A (en) 1965-05-31
GB1028691A (en) 1966-05-04

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