FR2064039A1 - - Google Patents

Info

Publication number
FR2064039A1
FR2064039A1 FR7012928A FR7012928A FR2064039A1 FR 2064039 A1 FR2064039 A1 FR 2064039A1 FR 7012928 A FR7012928 A FR 7012928A FR 7012928 A FR7012928 A FR 7012928A FR 2064039 A1 FR2064039 A1 FR 2064039A1
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.)
Granted
Application number
FR7012928A
Other languages
French (fr)
Other versions
FR2064039B1 (enExample
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 FR2064039A1 publication Critical patent/FR2064039A1/fr
Application granted granted Critical
Publication of FR2064039B1 publication Critical patent/FR2064039B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
    • G03C1/73—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing organic compounds
    • G03C1/732—Leuco dyes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Optical Filters (AREA)
FR7012928A 1969-04-10 1970-04-10 Expired FR2064039B1 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81495569A 1969-04-10 1969-04-10

Publications (2)

Publication Number Publication Date
FR2064039A1 true FR2064039A1 (enExample) 1971-07-16
FR2064039B1 FR2064039B1 (enExample) 1974-08-09

Family

ID=25216452

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7012928A Expired FR2064039B1 (enExample) 1969-04-10 1970-04-10

Country Status (8)

Country Link
US (1) US3660299A (enExample)
JP (1) JPS4936619B1 (enExample)
CA (1) CA926606A (enExample)
DE (1) DE2016972A1 (enExample)
FR (1) FR2064039B1 (enExample)
GB (1) GB1245566A (enExample)
IL (1) IL34248A (enExample)
NL (1) NL7005140A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102617492A (zh) * 2012-02-28 2012-08-01 武汉工程大学 健那绿b的合成方法
CN102618064B (zh) * 2012-02-28 2014-04-30 武汉工程大学 一种健那绿b的合成工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1078695A (en) * 1963-12-23 1967-08-09 American Cyanamid Co Photochromic filter
US3390933A (en) * 1964-11-25 1968-07-02 American Optical Corp Variable density light transmitting device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1078695A (en) * 1963-12-23 1967-08-09 American Cyanamid Co Photochromic filter
US3390933A (en) * 1964-11-25 1968-07-02 American Optical Corp Variable density light transmitting device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Chemisches Zentralblatt, volume 133 (1962), pages 1100 et 1101, l'article de R. HAVEMANN et al *

Also Published As

Publication number Publication date
DE2016972A1 (de) 1970-10-15
NL7005140A (enExample) 1970-10-13
GB1245566A (en) 1971-09-08
FR2064039B1 (enExample) 1974-08-09
IL34248A0 (en) 1970-06-17
US3660299A (en) 1972-05-02
JPS4936619B1 (enExample) 1974-10-02
IL34248A (en) 1972-12-29
CA926606A (en) 1973-05-22

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Legal Events

Date Code Title Description
ST Notification of lapse