FR822592A - Lunette avec verres additionnels escamotables, permettant un travail précis à des distances variables - Google Patents

Lunette avec verres additionnels escamotables, permettant un travail précis à des distances variables

Info

Publication number
FR822592A
FR822592A FR822592DA FR822592A FR 822592 A FR822592 A FR 822592A FR 822592D A FR822592D A FR 822592DA FR 822592 A FR822592 A FR 822592A
Authority
FR
France
Prior art keywords
telescope
variable distances
allowing precise
precise work
additional retractable
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)
Inventor
Louis Hector Theophile Delage
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
Application granted granted Critical
Publication of FR822592A publication Critical patent/FR822592A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/08—Auxiliary lenses; Arrangements for varying focal length
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C9/00—Attaching auxiliary optical parts
    • G02C9/02—Attaching auxiliary optical parts by hinging

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Health & Medical Sciences (AREA)
FR822592D 1936-12-08 1936-12-08 Lunette avec verres additionnels escamotables, permettant un travail précis à des distances variables Expired FR822592A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR822592T 1936-12-08

Publications (1)

Publication Number Publication Date
FR822592A true FR822592A (fr) 1938-01-04

Family

ID=9280982

Family Applications (1)

Application Number Title Priority Date Filing Date
FR822592D Expired FR822592A (fr) 1936-12-08 1936-12-08 Lunette avec verres additionnels escamotables, permettant un travail précis à des distances variables

Country Status (1)

Country Link
FR (1) FR822592A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981003119A1 (fr) * 1980-05-08 1981-11-12 Lhp Loupes Hautes Performances Dispositif optique correcteur provisoire permettant le choix d'une monture nue

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981003119A1 (fr) * 1980-05-08 1981-11-12 Lhp Loupes Hautes Performances Dispositif optique correcteur provisoire permettant le choix d'une monture nue

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