FR1273264A - Vari-focal lens with multiple focal length ranges - Google Patents

Vari-focal lens with multiple focal length ranges

Info

Publication number
FR1273264A
FR1273264A FR843566A FR843566A FR1273264A FR 1273264 A FR1273264 A FR 1273264A FR 843566 A FR843566 A FR 843566A FR 843566 A FR843566 A FR 843566A FR 1273264 A FR1273264 A FR 1273264A
Authority
FR
France
Prior art keywords
vari
focal
length ranges
lens
focal length
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
FR843566A
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.)
Jos Schneider Optische Werke GmbH
Original Assignee
Jos Schneider Optische Werke GmbH
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 Jos Schneider Optische Werke GmbH filed Critical Jos Schneider Optische Werke GmbH
Priority to FR843566A priority Critical patent/FR1273264A/en
Application granted granted Critical
Publication of FR1273264A publication Critical patent/FR1273264A/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
    • G02B15/144—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 four groups only
    • G02B15/1441—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 four groups only the first group being positive
    • G02B15/144109—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 four groups only the first group being positive arranged +--+

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR843566A 1960-11-10 1960-11-10 Vari-focal lens with multiple focal length ranges Expired FR1273264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR843566A FR1273264A (en) 1960-11-10 1960-11-10 Vari-focal lens with multiple focal length ranges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR843566A FR1273264A (en) 1960-11-10 1960-11-10 Vari-focal lens with multiple focal length ranges

Publications (1)

Publication Number Publication Date
FR1273264A true FR1273264A (en) 1961-10-06

Family

ID=8742448

Family Applications (1)

Application Number Title Priority Date Filing Date
FR843566A Expired FR1273264A (en) 1960-11-10 1960-11-10 Vari-focal lens with multiple focal length ranges

Country Status (1)

Country Link
FR (1) FR1273264A (en)

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