FR972697A - Lunettes filtrantes - Google Patents

Lunettes filtrantes

Info

Publication number
FR972697A
FR972697A FR972697DA FR972697A FR 972697 A FR972697 A FR 972697A FR 972697D A FR972697D A FR 972697DA FR 972697 A FR972697 A FR 972697A
Authority
FR
France
Prior art keywords
filter glasses
glasses
filter
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
Paul Blanc
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 FR972697A publication Critical patent/FR972697A/fr
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00Optical parts
    • G02C7/10Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/105Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having inhomogeneously distributed colouring
    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00Optical parts
    • G02C7/10Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/108Colouring materials
    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C2202/00Generic optical aspects applicable to one or more of the subgroups of G02C7/00
    • G02C2202/16Laminated or compound lenses

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR972697D 1948-09-02 1948-09-02 Lunettes filtrantes Expired FR972697A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR972697T 1948-09-02

Publications (1)

Publication Number Publication Date
FR972697A true FR972697A (fr) 1951-02-01

Family

ID=9516176

Family Applications (1)

Application Number Title Priority Date Filing Date
FR972697D Expired FR972697A (fr) 1948-09-02 1948-09-02 Lunettes filtrantes

Country Status (1)

Country Link
FR (1) FR972697A (fr)

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