FR2304658B1 - - Google Patents

Info

Publication number
FR2304658B1
FR2304658B1 FR7534392A FR7534392A FR2304658B1 FR 2304658 B1 FR2304658 B1 FR 2304658B1 FR 7534392 A FR7534392 A FR 7534392A FR 7534392 A FR7534392 A FR 7534392A FR 2304658 B1 FR2304658 B1 FR 2304658B1
Authority
FR
France
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
FR7534392A
Other languages
French (fr)
Other versions
FR2304658A1 (fr
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.)
American Optical Corp
Original Assignee
American Optical Corp
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 American Optical Corp filed Critical American Optical Corp
Publication of FR2304658A1 publication Critical patent/FR2304658A1/fr
Application granted granted Critical
Publication of FR2304658B1 publication Critical patent/FR2304658B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—Lenses
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K9/00—Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
    • C09K9/02—Organic tenebrescent materials

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Eyeglasses (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Optical Filters (AREA)
FR7534392A 1975-03-21 1975-11-12 Produit photochromique resistant a la fatigue Granted FR2304658A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56044175A 1975-03-21 1975-03-21

Publications (2)

Publication Number Publication Date
FR2304658A1 FR2304658A1 (fr) 1976-10-15
FR2304658B1 true FR2304658B1 (pt) 1980-06-27

Family

ID=24237844

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7534392A Granted FR2304658A1 (fr) 1975-03-21 1975-11-12 Produit photochromique resistant a la fatigue

Country Status (7)

Country Link
JP (1) JPS51111487A (pt)
BR (1) BR7508207A (pt)
DE (1) DE2547688A1 (pt)
FR (1) FR2304658A1 (pt)
GB (1) GB1483685A (pt)
IL (1) IL48308A0 (pt)
IT (1) IT1052346B (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3424452A1 (de) * 1984-04-09 1985-10-24 Technica Entwicklungsgesellschaft mbH & Co KG, 2418 Ratzeburg Verfahren und vorrichtung zum gewinnen von trinkwasser oder giesswasser, insb. in entwicklungslaendern

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508810A (en) * 1967-07-19 1970-04-28 Vari Light Corp Photochromic systems
US3666352A (en) * 1970-01-22 1972-05-30 Charles A Wagner Rate controlled photochromic lenses of vinyl chloride-vinyl acetate copolymer containing a mercury thiocarbazone compound

Also Published As

Publication number Publication date
DE2547688A1 (de) 1976-09-30
JPS51111487A (en) 1976-10-01
FR2304658A1 (fr) 1976-10-15
IL48308A0 (en) 1975-12-31
IT1052346B (it) 1981-06-20
BR7508207A (pt) 1976-09-21
GB1483685A (en) 1977-08-24

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Legal Events

Date Code Title Description
ST Notification of lapse