FR1407593A - Objectif à focale variable à grande luminosité - Google Patents

Objectif à focale variable à grande luminosité

Info

Publication number
FR1407593A
FR1407593A FR988019A FR988019A FR1407593A FR 1407593 A FR1407593 A FR 1407593A FR 988019 A FR988019 A FR 988019A FR 988019 A FR988019 A FR 988019A FR 1407593 A FR1407593 A FR 1407593A
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
FR988019A
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 DESCH34003A external-priority patent/DE1264094B/de
Application filed by Jos Schneider Optische Werke GmbH filed Critical Jos Schneider Optische Werke GmbH
Priority to FR988019A priority Critical patent/FR1407593A/fr
Application granted granted Critical
Publication of FR1407593A publication Critical patent/FR1407593A/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
    • G02B15/145—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 five groups only
    • G02B15/1451—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 five groups only the first group being positive
    • G02B15/145125—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 five groups only the first group being positive arranged +--++

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR988019A 1963-10-16 1964-09-14 Objectif à focale variable à grande luminosité Expired FR1407593A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR988019A FR1407593A (fr) 1963-10-16 1964-09-14 Objectif à focale variable à grande luminosité

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DESCH34003A DE1264094B (de) 1963-10-16 1963-10-16 Lichtstarkes Vario-Objektiv
FR988019A FR1407593A (fr) 1963-10-16 1964-09-14 Objectif à focale variable à grande luminosité

Publications (1)

Publication Number Publication Date
FR1407593A true FR1407593A (fr) 1965-07-30

Family

ID=25993120

Family Applications (1)

Application Number Title Priority Date Filing Date
FR988019A Expired FR1407593A (fr) 1963-10-16 1964-09-14 Objectif à focale variable à grande luminosité

Country Status (1)

Country Link
FR (1) FR1407593A (fr)

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