FR1081948A - Nouveau dispositif optique à distance focale variable - Google Patents

Nouveau dispositif optique à distance focale variable

Info

Publication number
FR1081948A
FR1081948A FR1081948DA FR1081948A FR 1081948 A FR1081948 A FR 1081948A FR 1081948D A FR1081948D A FR 1081948DA FR 1081948 A FR1081948 A FR 1081948A
Authority
FR
France
Prior art keywords
focal length
optical device
variable focal
new optical
new
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
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.)
Optique & De Mecanique De Haut
Original Assignee
Optique & De Mecanique De Haut
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 Optique & De Mecanique De Haut filed Critical Optique & De Mecanique De Haut
Application granted granted Critical
Publication of FR1081948A publication Critical patent/FR1081948A/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
    • G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR1081948D 1953-05-13 1953-05-13 Nouveau dispositif optique à distance focale variable Expired FR1081948A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1081948T 1953-05-13

Publications (1)

Publication Number Publication Date
FR1081948A true FR1081948A (fr) 1954-12-23

Family

ID=9610416

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1081948D Expired FR1081948A (fr) 1953-05-13 1953-05-13 Nouveau dispositif optique à distance focale variable

Country Status (1)

Country Link
FR (1) FR1081948A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2847907A (en) * 1955-01-24 1958-08-19 Angenieux Pierre Variable focal-length objectives
US2906171A (en) * 1955-12-20 1959-09-29 Bergstein Leonard Varifocal lens system
DE1153185B (de) * 1956-01-12 1963-08-22 Leonard Bergstein Linsensystem mit veraenderlicher Brennweite und Vierpunkt-Kompensierung der Bildebenenverschiebung
DE1299903B (de) * 1963-08-27 1969-07-24 Nippon Kogaku Kk Pankratisches Objektiv

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2847907A (en) * 1955-01-24 1958-08-19 Angenieux Pierre Variable focal-length objectives
US2906171A (en) * 1955-12-20 1959-09-29 Bergstein Leonard Varifocal lens system
DE1153185B (de) * 1956-01-12 1963-08-22 Leonard Bergstein Linsensystem mit veraenderlicher Brennweite und Vierpunkt-Kompensierung der Bildebenenverschiebung
DE1299903B (de) * 1963-08-27 1969-07-24 Nippon Kogaku Kk Pankratisches Objektiv

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