FR1191330A - Light modulator device - Google Patents

Light modulator device

Info

Publication number
FR1191330A
FR1191330A FR1191330DA FR1191330A FR 1191330 A FR1191330 A FR 1191330A FR 1191330D A FR1191330D A FR 1191330DA FR 1191330 A FR1191330 A FR 1191330A
Authority
FR
France
Prior art keywords
light modulator
modulator device
light
modulator
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
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of FR1191330A publication Critical patent/FR1191330A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2641—Compositions containing one or more ferrites of the group comprising rare earth metals and one or more ferrites of the group comprising alkali metals, alkaline earth metals or lead
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2675—Other ferrites containing rare earth metals, e.g. rare earth ferrite garnets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • 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 
    • G02F1/09—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 magneto-optical elements, e.g. exhibiting Faraday effect
FR1191330D 1957-02-15 1957-12-13 Light modulator device Expired FR1191330A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US640481A US2974568A (en) 1957-02-15 1957-02-15 Light modulator

Publications (1)

Publication Number Publication Date
FR1191330A true FR1191330A (en) 1959-10-19

Family

ID=24568430

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1191330D Expired FR1191330A (en) 1957-02-15 1957-12-13 Light modulator device

Country Status (4)

Country Link
US (1) US2974568A (en)
FR (1) FR1191330A (en)
GB (1) GB844799A (en)
NL (1) NL109103C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120738B (en) * 1960-02-09 1961-12-28 Akad Wissenschaften Ddr Polarizing microscope

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3153146A (en) * 1959-06-19 1964-10-13 Westinghouse Electric Corp Thermal imaging device using a target which rotates the plane of polarization
NL255137A (en) * 1959-08-25
GB919368A (en) * 1960-09-22 1963-02-27 Nat Res Dev Improvements relating to the measurement of distance
BE620181A (en) * 1961-07-28
US3177770A (en) * 1961-10-17 1965-04-13 J D Herrebaudt Light modulation by microwaves
US3239670A (en) * 1961-11-17 1966-03-08 Bloembergen Nicolaas Microwave modulation of optical radiation in a waveguide
US3234390A (en) * 1962-01-12 1966-02-08 J D Herrebaudt Communication with light contrast modulation
US3156651A (en) * 1962-03-28 1964-11-10 Bell Telephone Labor Inc Light transparent ferrimagnetic garnets
US3259015A (en) * 1962-04-30 1966-07-05 Bell Telephone Labor Inc Multiple reflection optical wave modulator
US3245314A (en) * 1962-06-28 1966-04-12 Bell Telephone Labor Inc Optical rotation devices employing a ferromagnetic chromium trihalide
US3204104A (en) * 1962-07-02 1965-08-31 Gen Telephone & Elect Single-sideband light modulator
US3324393A (en) * 1963-07-26 1967-06-06 Gen Electric Magneto-optical electric current sensing arrangement
US3316050A (en) * 1963-08-09 1967-04-25 Bell Telephone Labor Inc Optical modulator employing the dichroic absorption of antiferromagnetic nif2
US3492061A (en) * 1965-06-18 1970-01-27 Bell Telephone Labor Inc Light beam deflector in which the light is diffracted by magnetic waves
US3480877A (en) * 1966-03-23 1969-11-25 Bell Telephone Labor Inc Solid state laser
US3512867A (en) * 1967-05-18 1970-05-19 Philips Corp Magneto-optical digital light deflection device
GB1310233A (en) * 1969-04-11 1973-03-14 Bp Chem Int Ltd Radiation analysers
JP2000171767A (en) * 1998-12-07 2000-06-23 Murata Mfg Co Ltd Optical modulation device and filter device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US581815A (en) * 1897-05-04 eaton
US2675740A (en) * 1954-04-20 Glare preventing device and method
US2109540A (en) * 1931-06-06 1938-03-01 Le Roy J Leishman Means and method of coloring lightformed images
US2451732A (en) * 1944-06-15 1948-10-19 Rca Corp Microwave-absorptive gas light valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120738B (en) * 1960-02-09 1961-12-28 Akad Wissenschaften Ddr Polarizing microscope

Also Published As

Publication number Publication date
GB844799A (en) 1960-08-17
US2974568A (en) 1961-03-14
NL109103C (en) 1964-08-17

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