FR1010093A - Objectif à focale variable - Google Patents

Objectif à focale variable

Info

Publication number
FR1010093A
FR1010093A FR1010093DA FR1010093A FR 1010093 A FR1010093 A FR 1010093A FR 1010093D A FR1010093D A FR 1010093DA FR 1010093 A FR1010093 A FR 1010093A
Authority
FR
France
Prior art keywords
vari
focal lens
focal
lens
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)
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.)
EMEL ETS
Original Assignee
EMEL ETS
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 EMEL ETS filed Critical EMEL ETS
Application granted granted Critical
Publication of FR1010093A publication Critical patent/FR1010093A/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)
FR1010093D 1948-01-10 1948-01-10 Objectif à focale variable Expired FR1010093A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1010093T 1948-01-10

Publications (1)

Publication Number Publication Date
FR1010093A true FR1010093A (fr) 1952-06-06

Family

ID=9568748

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1010093D Expired FR1010093A (fr) 1948-01-10 1948-01-10 Objectif à focale variable

Country Status (2)

Country Link
FR (1) FR1010093A (cs)
IT (1) IT454671A (cs)

Also Published As

Publication number Publication date
IT454671A (cs)

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