FR1309648A - Objectif photographique à réglage continu de la distance focale - Google Patents

Objectif photographique à réglage continu de la distance focale

Info

Publication number
FR1309648A
FR1309648A FR883732A FR883732A FR1309648A FR 1309648 A FR1309648 A FR 1309648A FR 883732 A FR883732 A FR 883732A FR 883732 A FR883732 A FR 883732A FR 1309648 A FR1309648 A FR 1309648A
Authority
FR
France
Prior art keywords
focal length
photographic lens
continuously adjustable
adjustable focal
length 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
FR883732A
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 FR883732A priority Critical patent/FR1309648A/fr
Application granted granted Critical
Publication of FR1309648A publication Critical patent/FR1309648A/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)
FR883732A 1961-01-07 1962-01-03 Objectif photographique à réglage continu de la distance focale Expired FR1309648A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR883732A FR1309648A (fr) 1961-01-07 1962-01-03 Objectif photographique à réglage continu de la distance focale

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEZ0008470 1961-01-07
FR883732A FR1309648A (fr) 1961-01-07 1962-01-03 Objectif photographique à réglage continu de la distance focale

Publications (1)

Publication Number Publication Date
FR1309648A true FR1309648A (fr) 1962-11-16

Family

ID=26003428

Family Applications (1)

Application Number Title Priority Date Filing Date
FR883732A Expired FR1309648A (fr) 1961-01-07 1962-01-03 Objectif photographique à réglage continu de la distance focale

Country Status (1)

Country Link
FR (1) FR1309648A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1242012B (de) * 1964-09-25 1967-06-08 Schneider Co Optische Werke Lichtstarkes photographisches oder kinematographisches Aufnahmeobjektiv mit veraenderbarer Brennweite
US3346320A (en) * 1963-07-17 1967-10-10 Schneider Co Optische Werke High-speed varifocal objective

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3346320A (en) * 1963-07-17 1967-10-10 Schneider Co Optische Werke High-speed varifocal objective
DE1242012B (de) * 1964-09-25 1967-06-08 Schneider Co Optische Werke Lichtstarkes photographisches oder kinematographisches Aufnahmeobjektiv mit veraenderbarer Brennweite

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