IT1016198B - Perfezionamento nei materiali fotocromici - Google Patents

Perfezionamento nei materiali fotocromici

Info

Publication number
IT1016198B
IT1016198B IT5175974A IT5175974A IT1016198B IT 1016198 B IT1016198 B IT 1016198B IT 5175974 A IT5175974 A IT 5175974A IT 5175974 A IT5175974 A IT 5175974A IT 1016198 B IT1016198 B IT 1016198B
Authority
IT
Italy
Prior art keywords
photocromic
improvement
materials
photocromic materials
Prior art date
Application number
IT5175974A
Other languages
English (en)
Original Assignee
Polaroid 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 Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of IT1016198B publication Critical patent/IT1016198B/it

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/0073—Optical laminates
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/23—Photochromic filters
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Eyeglasses (AREA)
  • Laminated Bodies (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
IT5175974A 1973-07-02 1974-06-26 Perfezionamento nei materiali fotocromici IT1016198B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37549973A 1973-07-02 1973-07-02
US45686874A 1974-04-01 1974-04-01

Publications (1)

Publication Number Publication Date
IT1016198B true IT1016198B (it) 1977-05-30

Family

ID=27007079

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5175974A IT1016198B (it) 1973-07-02 1974-06-26 Perfezionamento nei materiali fotocromici

Country Status (4)

Country Link
JP (1) JPS5043943A (it)
DE (1) DE2431762A1 (it)
FR (1) FR2236196A1 (it)
IT (1) IT1016198B (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8922865B2 (en) 2009-04-16 2014-12-30 Giancarlo Marinelli Method for producing photochromatic optical elements, and photochromatic optical elements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8922865B2 (en) 2009-04-16 2014-12-30 Giancarlo Marinelli Method for producing photochromatic optical elements, and photochromatic optical elements

Also Published As

Publication number Publication date
JPS5043943A (it) 1975-04-21
FR2236196A1 (en) 1975-01-31
DE2431762A1 (de) 1975-01-23

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