BE603428A - Light intensity attenuator device - Google Patents

Light intensity attenuator device

Info

Publication number
BE603428A
BE603428A BE603428A BE603428A BE603428A BE 603428 A BE603428 A BE 603428A BE 603428 A BE603428 A BE 603428A BE 603428 A BE603428 A BE 603428A BE 603428 A BE603428 A BE 603428A
Authority
BE
Belgium
Prior art keywords
light intensity
attenuator device
intensity attenuator
light
intensity
Prior art date
Application number
BE603428A
Other languages
French (fr)
Inventor
Carlo Comissoni
Original Assignee
Carlo Comissoni
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 Carlo Comissoni filed Critical Carlo Comissoni
Publication of BE603428A publication Critical patent/BE603428A/en

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
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/101—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having an electro-optical light valve
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/105—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having inhomogeneously distributed colouring

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
BE603428A 1960-05-07 1961-05-05 Light intensity attenuator device BE603428A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT818760 1960-05-07

Publications (1)

Publication Number Publication Date
BE603428A true BE603428A (en) 1961-09-01

Family

ID=33042645

Family Applications (1)

Application Number Title Priority Date Filing Date
BE603428A BE603428A (en) 1960-05-07 1961-05-05 Light intensity attenuator device

Country Status (2)

Country Link
BE (1) BE603428A (en)
DE (1) DE1860252U (en)

Also Published As

Publication number Publication date
DE1860252U (en) 1962-10-18

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