FR90544E - High brightness varifocal lens - Google Patents

High brightness varifocal lens

Info

Publication number
FR90544E
FR90544E FR66992A FR66992A FR90544E FR 90544 E FR90544 E FR 90544E FR 66992 A FR66992 A FR 66992A FR 66992 A FR66992 A FR 66992A FR 90544 E FR90544 E FR 90544E
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
FR66992A
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
Priority claimed from DESCH30039A external-priority patent/DE1209770B/en
Application filed by Jos Schneider Optische Werke GmbH filed Critical Jos Schneider Optische Werke GmbH
Priority to FR66992A priority Critical patent/FR90544E/en
Application granted granted Critical
Publication of FR90544E publication Critical patent/FR90544E/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
    • G02B15/145—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)
FR66992A 1961-07-26 1966-06-27 High brightness varifocal lens Expired FR90544E (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR66992A FR90544E (en) 1961-07-26 1966-06-27 High brightness varifocal lens

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DESCH30039A DE1209770B (en) 1961-07-26 1961-07-26 Powerful varifocal lens
DESCH33278A DE1259596B (en) 1961-07-26 1963-05-14 Powerful varifocal lens
DESC037311 1965-07-01
FR66992A FR90544E (en) 1961-07-26 1966-06-27 High brightness varifocal lens

Publications (1)

Publication Number Publication Date
FR90544E true FR90544E (en) 1967-12-29

Family

ID=31721581

Family Applications (1)

Application Number Title Priority Date Filing Date
FR66992A Expired FR90544E (en) 1961-07-26 1966-06-27 High brightness varifocal lens

Country Status (1)

Country Link
FR (1) FR90544E (en)

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