FR2372446A2 - Variateur optique de grandissement d'image - Google Patents

Variateur optique de grandissement d'image

Info

Publication number
FR2372446A2
FR2372446A2 FR7636042A FR7636042A FR2372446A2 FR 2372446 A2 FR2372446 A2 FR 2372446A2 FR 7636042 A FR7636042 A FR 7636042A FR 7636042 A FR7636042 A FR 7636042A FR 2372446 A2 FR2372446 A2 FR 2372446A2
Authority
FR
France
Prior art keywords
lens
diaphragm
divergent
relatively movable
variable image
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.)
Granted
Application number
FR7636042A
Other languages
English (en)
French (fr)
Other versions
FR2372446B2 (en, 2012
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7636042A priority Critical patent/FR2372446A2/fr
Publication of FR2372446A2 publication Critical patent/FR2372446A2/fr
Application granted granted Critical
Publication of FR2372446B2 publication Critical patent/FR2372446B2/fr
Granted 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
    • G02B15/142—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 two groups only
    • G02B15/1425—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 two groups only the first group being negative

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
FR7636042A 1976-11-30 1976-11-30 Variateur optique de grandissement d'image Granted FR2372446A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7636042A FR2372446A2 (fr) 1976-11-30 1976-11-30 Variateur optique de grandissement d'image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7636042A FR2372446A2 (fr) 1976-11-30 1976-11-30 Variateur optique de grandissement d'image

Publications (2)

Publication Number Publication Date
FR2372446A2 true FR2372446A2 (fr) 1978-06-23
FR2372446B2 FR2372446B2 (en, 2012) 1981-07-17

Family

ID=9180465

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7636042A Granted FR2372446A2 (fr) 1976-11-30 1976-11-30 Variateur optique de grandissement d'image

Country Status (1)

Country Link
FR (1) FR2372446A2 (en, 2012)

Also Published As

Publication number Publication date
FR2372446B2 (en, 2012) 1981-07-17

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