FR1303692A - Objectif photographique à distance focale variable - Google Patents

Objectif photographique à distance focale variable

Info

Publication number
FR1303692A
FR1303692A FR871845A FR871845A FR1303692A FR 1303692 A FR1303692 A FR 1303692A FR 871845 A FR871845 A FR 871845A FR 871845 A FR871845 A FR 871845A FR 1303692 A FR1303692 A FR 1303692A
Authority
FR
France
Prior art keywords
focal length
photographic lens
variable focal
variable
photographic
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
FR871845A
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Priority to FR871845A priority Critical patent/FR1303692A/fr
Application granted granted Critical
Publication of FR1303692A publication Critical patent/FR1303692A/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
    • G02B15/143—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
    • G02B15/1431—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 the first group being positive
    • G02B15/143105—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 the first group being positive arranged +-+

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR871845A 1960-08-30 1961-08-29 Objectif photographique à distance focale variable Expired FR1303692A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR871845A FR1303692A (fr) 1960-08-30 1961-08-29 Objectif photographique à distance focale variable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEZ0008224 1960-08-30
FR871845A FR1303692A (fr) 1960-08-30 1961-08-29 Objectif photographique à distance focale variable

Publications (1)

Publication Number Publication Date
FR1303692A true FR1303692A (fr) 1962-09-14

Family

ID=26003420

Family Applications (1)

Application Number Title Priority Date Filing Date
FR871845A Expired FR1303692A (fr) 1960-08-30 1961-08-29 Objectif photographique à distance focale variable

Country Status (1)

Country Link
FR (1) FR1303692A (fr)

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