FR1308216A - High brightness varifocal lens - Google Patents

High brightness varifocal lens

Info

Publication number
FR1308216A
FR1308216A FR882058A FR882058A FR1308216A FR 1308216 A FR1308216 A FR 1308216A FR 882058 A FR882058 A FR 882058A FR 882058 A FR882058 A FR 882058A FR 1308216 A FR1308216 A FR 1308216A
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
FR882058A
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.)
ISK Optics GmbH
Original Assignee
Isco 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
Application filed by Isco Optische Werke GmbH filed Critical Isco Optische Werke GmbH
Priority to FR882058A priority Critical patent/FR1308216A/en
Application granted granted Critical
Publication of FR1308216A publication Critical patent/FR1308216A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR882058A 1961-12-15 1961-12-15 High brightness varifocal lens Expired FR1308216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR882058A FR1308216A (en) 1961-12-15 1961-12-15 High brightness varifocal lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR882058A FR1308216A (en) 1961-12-15 1961-12-15 High brightness varifocal lens

Publications (1)

Publication Number Publication Date
FR1308216A true FR1308216A (en) 1962-11-03

Family

ID=8768788

Family Applications (1)

Application Number Title Priority Date Filing Date
FR882058A Expired FR1308216A (en) 1961-12-15 1961-12-15 High brightness varifocal lens

Country Status (1)

Country Link
FR (1) FR1308216A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3274887A (en) * 1962-04-06 1966-09-27 Schneider Co Optische Werke Four-component objective having two movable components
US3320014A (en) * 1962-07-27 1967-05-16 Schneider Co Optische Werke Four component afocal front attachment for camera objectives

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3274887A (en) * 1962-04-06 1966-09-27 Schneider Co Optische Werke Four-component objective having two movable components
US3320014A (en) * 1962-07-27 1967-05-16 Schneider Co Optische Werke Four component afocal front attachment for camera objectives

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