DE273923C - - Google Patents

Info

Publication number
DE273923C
DE273923C DENDAT273923D DE273923DA DE273923C DE 273923 C DE273923 C DE 273923C DE NDAT273923 D DENDAT273923 D DE NDAT273923D DE 273923D A DE273923D A DE 273923DA DE 273923 C DE273923 C DE 273923C
Authority
DE
Germany
Prior art keywords
focal length
lens
telescope
working position
reflector
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.)
Active
Application number
DENDAT273923D
Other languages
German (de)
English (en)
Publication of DE273923C publication Critical patent/DE273923C/de
Active 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
    • G02B15/04—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Telescopes (AREA)
DENDAT273923D Active DE273923C (fr)

Publications (1)

Publication Number Publication Date
DE273923C true DE273923C (fr)

Family

ID=530333

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT273923D Active DE273923C (fr)

Country Status (1)

Country Link
DE (1) DE273923C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1101796B (de) * 1958-05-24 1961-03-09 Zeiss Carl Fa Strahlenteilungswechsler fuer Photomikroskope
FR2625572A1 (fr) * 1987-12-30 1989-07-07 Trt Telecom Radio Electr Systeme optique bifocal coude a champ oriente

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1101796B (de) * 1958-05-24 1961-03-09 Zeiss Carl Fa Strahlenteilungswechsler fuer Photomikroskope
FR2625572A1 (fr) * 1987-12-30 1989-07-07 Trt Telecom Radio Electr Systeme optique bifocal coude a champ oriente

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