FR1357790A - Objectif de grande luminosité à focale variable - Google Patents

Objectif de grande luminosité à focale variable

Info

Publication number
FR1357790A
FR1357790A FR926316A FR926316A FR1357790A FR 1357790 A FR1357790 A FR 1357790A FR 926316 A FR926316 A FR 926316A FR 926316 A FR926316 A FR 926316A FR 1357790 A FR1357790 A FR 1357790A
Authority
FR
France
Prior art keywords
high brightness
varifocal lens
varifocal
lens
brightness
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
FR926316A
Other languages
English (en)
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
Priority claimed from DESCH31267A external-priority patent/DE1258135B/de
Application filed by Jos Schneider Optische Werke GmbH filed Critical Jos Schneider Optische Werke GmbH
Priority to FR926316A priority Critical patent/FR1357790A/fr
Application granted granted Critical
Publication of FR1357790A publication Critical patent/FR1357790A/fr
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)
FR926316A 1962-04-06 1963-02-28 Objectif de grande luminosité à focale variable Expired FR1357790A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR926316A FR1357790A (fr) 1962-04-06 1963-02-28 Objectif de grande luminosité à focale variable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DESCH31267A DE1258135B (de) 1962-04-06 1962-04-06 Lichtstarkes Objektiv mit veraenderbarer Brennweite und mechanischem Ausgleich der Bildverschiebung
FR926316A FR1357790A (fr) 1962-04-06 1963-02-28 Objectif de grande luminosité à focale variable

Publications (1)

Publication Number Publication Date
FR1357790A true FR1357790A (fr) 1964-04-10

Family

ID=25992981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR926316A Expired FR1357790A (fr) 1962-04-06 1963-02-28 Objectif de grande luminosité à focale variable

Country Status (1)

Country Link
FR (1) FR1357790A (fr)

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