FR1228105A - New light filtration process and new variable density light filter using this process - Google Patents

New light filtration process and new variable density light filter using this process

Info

Publication number
FR1228105A
FR1228105A FR785712A FR785712A FR1228105A FR 1228105 A FR1228105 A FR 1228105A FR 785712 A FR785712 A FR 785712A FR 785712 A FR785712 A FR 785712A FR 1228105 A FR1228105 A FR 1228105A
Authority
FR
France
Prior art keywords
new
variable density
light
light filter
filtration process
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
FR785712A
Other languages
French (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.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
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 Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR1228105A publication Critical patent/FR1228105A/en
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
    • 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
    • G02F1/1506—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 caused by electrodeposition, e.g. electrolytic deposition of an inorganic material on or close to an electrode
FR785712A 1958-02-03 1959-02-03 New light filtration process and new variable density light filter using this process Expired FR1228105A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1228105XA 1958-02-03 1958-02-03

Publications (1)

Publication Number Publication Date
FR1228105A true FR1228105A (en) 1960-08-26

Family

ID=22404907

Family Applications (1)

Application Number Title Priority Date Filing Date
FR785712A Expired FR1228105A (en) 1958-02-03 1959-02-03 New light filtration process and new variable density light filter using this process

Country Status (2)

Country Link
DE (1) DE1155538B (en)
FR (1) FR1228105A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3245313A (en) * 1961-02-23 1966-04-12 Philco Corp Light modulating means employing a self-erasing plating solution
US3363239A (en) * 1962-10-01 1968-01-09 Exxon Production Research Co Electro-optical data storage and retrieval unit
FR2328979A1 (en) * 1975-10-23 1977-05-20 American Cyanamid Co ELECTROCHROIC LENS DEVICE
FR2366659A1 (en) * 1976-09-30 1978-04-28 Ibm METHOD OF MANUFACTURING AN ELECTRODE INTENDED FOR A DISPLAY DEVICE
EP0004548A2 (en) * 1978-03-31 1979-10-17 International Business Machines Corporation Electrochromic display device and method of operating the same
EP0017087A2 (en) * 1979-03-21 1980-10-15 Siemens Aktiengesellschaft Display method and display device for carrying out this method
FR2522231A1 (en) * 1982-02-23 1983-08-26 Thomson Csf VIDEOFREQUENCY IMAGE SENSOR APPARATUS WITH AUTOMATIC SENSITIVITY CORRECTION, USEABLE ON A TELEVISION SELF-TIMER

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3245313A (en) * 1961-02-23 1966-04-12 Philco Corp Light modulating means employing a self-erasing plating solution
US3363239A (en) * 1962-10-01 1968-01-09 Exxon Production Research Co Electro-optical data storage and retrieval unit
FR2328979A1 (en) * 1975-10-23 1977-05-20 American Cyanamid Co ELECTROCHROIC LENS DEVICE
FR2366659A1 (en) * 1976-09-30 1978-04-28 Ibm METHOD OF MANUFACTURING AN ELECTRODE INTENDED FOR A DISPLAY DEVICE
EP0004548A2 (en) * 1978-03-31 1979-10-17 International Business Machines Corporation Electrochromic display device and method of operating the same
EP0004548A3 (en) * 1978-03-31 1979-11-14 International Business Machines Corporation Electrochromic display device and method of operating the same
EP0017087A2 (en) * 1979-03-21 1980-10-15 Siemens Aktiengesellschaft Display method and display device for carrying out this method
EP0017087A3 (en) * 1979-03-21 1982-02-17 Siemens Aktiengesellschaft Display method and display device for carrying out this method
FR2522231A1 (en) * 1982-02-23 1983-08-26 Thomson Csf VIDEOFREQUENCY IMAGE SENSOR APPARATUS WITH AUTOMATIC SENSITIVITY CORRECTION, USEABLE ON A TELEVISION SELF-TIMER
EP0087992A1 (en) * 1982-02-23 1983-09-07 Thomson-Csf Videofrequency image detector device with automatic sensitivity correction for use in an automatic-tracking television system

Also Published As

Publication number Publication date
DE1155538B (en) 1963-10-10

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