FR1288617A - Light intensity attenuator device - Google Patents

Light intensity attenuator device

Info

Publication number
FR1288617A
FR1288617A FR861020A FR861020A FR1288617A FR 1288617 A FR1288617 A FR 1288617A FR 861020 A FR861020 A FR 861020A FR 861020 A FR861020 A FR 861020A FR 1288617 A FR1288617 A FR 1288617A
Authority
FR
France
Prior art keywords
light intensity
attenuator device
intensity attenuator
light
intensity
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
FR861020A
Other languages
French (fr)
Inventor
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 filed Critical
Priority to FR861020A priority Critical patent/FR1288617A/en
Application granted granted Critical
Publication of FR1288617A publication Critical patent/FR1288617A/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

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR861020A 1961-05-06 1961-05-06 Light intensity attenuator device Expired FR1288617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR861020A FR1288617A (en) 1961-05-06 1961-05-06 Light intensity attenuator device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR861020A FR1288617A (en) 1961-05-06 1961-05-06 Light intensity attenuator device

Publications (1)

Publication Number Publication Date
FR1288617A true FR1288617A (en) 1962-03-24

Family

ID=8754632

Family Applications (1)

Application Number Title Priority Date Filing Date
FR861020A Expired FR1288617A (en) 1961-05-06 1961-05-06 Light intensity attenuator device

Country Status (1)

Country Link
FR (1) FR1288617A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2617990A1 (en) * 1987-07-07 1989-01-13 Siegfried Klein APPARATUS FOR THE VIEW

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2617990A1 (en) * 1987-07-07 1989-01-13 Siegfried Klein APPARATUS FOR THE VIEW
EP0299844A1 (en) * 1987-07-07 1989-01-18 Commissariat A L'energie Atomique Viewing apparatus
US4842400A (en) * 1987-07-07 1989-06-27 Commissariat A L'energie Atomique Visual apparatus

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