BE822016A - Systeme optique a grandissement variable - Google Patents

Systeme optique a grandissement variable

Info

Publication number
BE822016A
BE822016A BE150353A BE150353A BE822016A BE 822016 A BE822016 A BE 822016A BE 150353 A BE150353 A BE 150353A BE 150353 A BE150353 A BE 150353A BE 822016 A BE822016 A BE 822016A
Authority
BE
Belgium
Prior art keywords
granding
variable
optical system
optical
variable granding
Prior art date
Application number
BE150353A
Other languages
English (en)
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 filed Critical
Publication of BE822016A publication Critical patent/BE822016A/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
    • 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)
  • Lenses (AREA)
BE150353A 1973-11-09 1974-11-08 Systeme optique a grandissement variable BE822016A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7339887A FR2251019A1 (en) 1973-11-09 1973-11-09 Optical system of variable magnification - is between fixed relative object and image planes and has single movable optics

Publications (1)

Publication Number Publication Date
BE822016A true BE822016A (fr) 1975-05-09

Family

ID=9127517

Family Applications (1)

Application Number Title Priority Date Filing Date
BE150353A BE822016A (fr) 1973-11-09 1974-11-08 Systeme optique a grandissement variable

Country Status (4)

Country Link
BE (1) BE822016A (fr)
FR (1) FR2251019A1 (fr)
IT (1) IT1024603B (fr)
NL (1) NL7414169A (fr)

Also Published As

Publication number Publication date
NL7414169A (nl) 1975-05-13
FR2251019B1 (fr) 1976-11-19
IT1024603B (it) 1978-07-20
FR2251019A1 (en) 1975-06-06
DE2449671A1 (de) 1975-05-22
DE2449671B2 (de) 1976-05-26

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