FR523497A - Diaphragm vision device - Google Patents

Diaphragm vision device

Info

Publication number
FR523497A
FR523497A FR523497A FR523497DA FR523497A FR 523497 A FR523497 A FR 523497A FR 523497 A FR523497 A FR 523497A FR 523497D A FR523497D A FR 523497DA FR 523497 A FR523497 A FR 523497A
Authority
FR
France
Prior art keywords
diaphragm
vision device
vision
diaphragm vision
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
FR523497A
Other languages
French (fr)
Inventor
Marie-Joseph-Henri Joly
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.)
MARIE-JOSEPH-HENRI JOLY
Original Assignee
MARIE-JOSEPH-HENRI JOLY
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 MARIE-JOSEPH-HENRI JOLY filed Critical MARIE-JOSEPH-HENRI JOLY
Application granted granted Critical
Publication of FR523497A publication Critical patent/FR523497A/en
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
    • G02C7/16—Shades; shields; Obturators, e.g. with pinhole, with slot
    • G02C7/165—Shades; shields; Obturators, e.g. with pinhole, with slot with stenopaeic apertures
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C3/00—Special supporting arrangements for lens assemblies or monocles
    • G02C3/04—Arrangements for supporting by hand, e.g. lorgnette, Arrangements for supporting by articles

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Health & Medical Sciences (AREA)
FR523497A 1920-09-01 1920-09-01 Diaphragm vision device Expired FR523497A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR523497T 1920-09-01

Publications (1)

Publication Number Publication Date
FR523497A true FR523497A (en) 1921-08-18

Family

ID=8918651

Family Applications (1)

Application Number Title Priority Date Filing Date
FR523497A Expired FR523497A (en) 1920-09-01 1920-09-01 Diaphragm vision device

Country Status (1)

Country Link
FR (1) FR523497A (en)

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