GB1418089A - Photochromic optical elements - Google Patents

Photochromic optical elements

Info

Publication number
GB1418089A
GB1418089A GB4529973A GB4529973A GB1418089A GB 1418089 A GB1418089 A GB 1418089A GB 4529973 A GB4529973 A GB 4529973A GB 4529973 A GB4529973 A GB 4529973A GB 1418089 A GB1418089 A GB 1418089A
Authority
GB
United Kingdom
Prior art keywords
hydrogen
solution
photochromic
synthetic plastics
plastics
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
GB4529973A
Other languages
English (en)
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 GB1418089A publication Critical patent/GB1418089A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
    • C08K5/3415—Five-membered rings
    • C08K5/3417—Five-membered rings condensed with carbocyclic rings
    • 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
    • B29D11/00634—Production of filters
    • 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
    • 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
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/685—Compositions containing spiro-condensed pyran compounds or derivatives thereof, as photosensitive substances

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Optical Filters (AREA)
  • Eyeglasses (AREA)
GB4529973A 1972-12-01 1973-09-27 Photochromic optical elements Expired GB1418089A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31118872A 1972-12-01 1972-12-01

Publications (1)

Publication Number Publication Date
GB1418089A true GB1418089A (en) 1975-12-17

Family

ID=23205794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4529973A Expired GB1418089A (en) 1972-12-01 1973-09-27 Photochromic optical elements

Country Status (11)

Country Link
JP (1) JPS4989551A (enrdf_load_stackoverflow)
AR (1) AR198117A1 (enrdf_load_stackoverflow)
AT (1) ATA897573A (enrdf_load_stackoverflow)
AU (1) AU6133373A (enrdf_load_stackoverflow)
BR (1) BR7309247D0 (enrdf_load_stackoverflow)
DE (1) DE2347018A1 (enrdf_load_stackoverflow)
FR (1) FR2211666A1 (enrdf_load_stackoverflow)
GB (1) GB1418089A (enrdf_load_stackoverflow)
IL (1) IL43211A0 (enrdf_load_stackoverflow)
IT (1) IT997765B (enrdf_load_stackoverflow)
NL (1) NL7316400A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245991A (en) 1979-12-12 1981-01-20 American Hoechst Corporation Dip dyeing of plastic articles and the dye bath composition thereof
US4286957A (en) 1979-01-10 1981-09-01 Essilor International "Cie Generale D'optique" Process of integrating a photochromic substance into an ophthalmic lens and a photochromic lens of organic material
US4289497A (en) 1980-09-02 1981-09-15 American Optical Corporation Gradient photochromic lens and method selectively reducing photochromic activity
US4931220A (en) * 1987-11-24 1990-06-05 Ppg Industries, Inc. Organic photochromic pigment particulates

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5393246U (enrdf_load_stackoverflow) * 1976-12-28 1978-07-29
FR2415318A1 (fr) * 1978-01-18 1979-08-17 Essilor Int Procede pour l'integration d'une substance photochromique a un substrat de base translucide en matiere organique, et substrat de base transparent
JPS5582623U (enrdf_load_stackoverflow) * 1978-11-01 1980-06-07

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4286957A (en) 1979-01-10 1981-09-01 Essilor International "Cie Generale D'optique" Process of integrating a photochromic substance into an ophthalmic lens and a photochromic lens of organic material
US4245991A (en) 1979-12-12 1981-01-20 American Hoechst Corporation Dip dyeing of plastic articles and the dye bath composition thereof
US4289497A (en) 1980-09-02 1981-09-15 American Optical Corporation Gradient photochromic lens and method selectively reducing photochromic activity
US4931220A (en) * 1987-11-24 1990-06-05 Ppg Industries, Inc. Organic photochromic pigment particulates

Also Published As

Publication number Publication date
AR198117A1 (es) 1974-05-31
DE2347018A1 (de) 1974-06-06
IL43211A0 (en) 1973-11-28
ATA897573A (de) 1976-07-15
IT997765B (it) 1975-12-30
NL7316400A (enrdf_load_stackoverflow) 1974-06-05
FR2211666A1 (enrdf_load_stackoverflow) 1974-07-19
AU6133373A (en) 1975-04-17
JPS4989551A (enrdf_load_stackoverflow) 1974-08-27
BR7309247D0 (pt) 1974-08-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees