FR2121801B1 - - Google Patents

Info

Publication number
FR2121801B1
FR2121801B1 FR7200996A FR7200996A FR2121801B1 FR 2121801 B1 FR2121801 B1 FR 2121801B1 FR 7200996 A FR7200996 A FR 7200996A FR 7200996 A FR7200996 A FR 7200996A FR 2121801 B1 FR2121801 B1 FR 2121801B1
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
FR7200996A
Other versions
FR2121801A1 (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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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
Priority claimed from US00149423A external-priority patent/US3839857A/en
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Publication of FR2121801A1 publication Critical patent/FR2121801A1/fr
Application granted granted Critical
Publication of FR2121801B1 publication Critical patent/FR2121801B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0035—Details constructional
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0035—Details constructional
    • G04G9/0041—Illumination devices
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/02—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques
    • G04G9/06—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
    • G04G9/12—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on an electrochromic effect
    • G02F1/1514—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material
    • G02F1/1523—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising inorganic material
    • G02F1/1524—Transition metal compounds

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electric Clocks (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
FR7200996A 1971-01-12 1972-01-12 Expired FR2121801B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10588371A 1971-01-12 1971-01-12
US00149423A US3839857A (en) 1971-06-03 1971-06-03 Electrochromic information displays

Publications (2)

Publication Number Publication Date
FR2121801A1 FR2121801A1 (fr) 1972-08-25
FR2121801B1 true FR2121801B1 (fr) 1979-04-27

Family

ID=26803050

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7200996A Expired FR2121801B1 (fr) 1971-01-12 1972-01-12

Country Status (8)

Country Link
CA (1) CA958476A (fr)
CH (3) CH561932A (fr)
DE (1) DE2201104C2 (fr)
FR (1) FR2121801B1 (fr)
GB (1) GB1377620A (fr)
HK (1) HK28078A (fr)
IT (1) IT948135B (fr)
NL (1) NL176498C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA999388A (en) * 1972-12-07 1976-11-02 American Cyanamid Company Electrochromic information display for telephones
CH594263A5 (fr) * 1975-11-29 1977-12-30 Ebauches Sa
DE2832999A1 (de) * 1977-07-29 1979-02-15 Sharp Kk Elektrochrome anzeigeeinrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR32671B (el) * 1966-02-25 1967-08-02 American Cyanamid Company Ηλεκτρο - οπτικαι συσκευαι.
US3451741A (en) * 1966-06-15 1969-06-24 Du Pont Electrochromic device
US3521941A (en) * 1967-02-07 1970-07-28 American Cyanamid Co Electro-optical device having variable optical density
US3485033A (en) * 1968-03-19 1969-12-23 Corning Glass Works Electronic timepiece having light beam adjustment means
US3540209A (en) * 1968-07-31 1970-11-17 Timex Corp Horological time display

Also Published As

Publication number Publication date
FR2121801A1 (fr) 1972-08-25
NL176498C (nl) 1985-04-16
NL7200053A (fr) 1972-07-14
IT948135B (it) 1973-05-30
GB1377620A (en) 1974-12-18
NL176498B (nl) 1984-11-16
DE2201104C2 (de) 1983-12-15
DE2201104A1 (de) 1972-09-07
CH40172A4 (fr) 1974-10-31
CA958476A (en) 1974-11-26
CH561932A (fr) 1975-05-15
HK28078A (en) 1978-06-09
CH558004A (de) 1975-01-15

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Legal Events

Date Code Title Description
ST Notification of lapse