CA1224558A - Modulateur-demodulateur de lumiere et methode de communication utilisant ce dispositif - Google Patents

Modulateur-demodulateur de lumiere et methode de communication utilisant ce dispositif

Info

Publication number: CA1224558A
Authority: CA; Canada
Prior art keywords: light; liquid crystal; film; phase; modulated
Prior art date: 1981-02-17
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

CA000501034A

Other languages

English (en)

Inventor

James L. Fergason

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.)

Individual

Original Assignee

Individual

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.)

1981-02-17

Filing date

1986-02-04

Publication date

1987-07-21

1981-02-17 Priority claimed from US06/235,006 external-priority patent/US4436376A/en

1986-02-04 Application filed by Individual filed Critical Individual

1986-02-04 Priority to CA000501034A priority Critical patent/CA1224558A/fr

1987-07-21 Application granted granted Critical

1987-07-21 Publication of CA1224558A publication Critical patent/CA1224558A/fr

Status Expired legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 46
230000006854 communication Effects 0.000 title abstract description 34
238000004891 communication Methods 0.000 title abstract description 34
239000004973 liquid crystal related substance Substances 0.000 claims abstract description 151
210000002858 crystal cell Anatomy 0.000 claims abstract description 77
230000010363 phase shift Effects 0.000 claims abstract description 18
239000004988 Nematic liquid crystal Substances 0.000 claims abstract 6
230000003534 oscillatory effect Effects 0.000 claims description 9
230000010287 polarization Effects 0.000 claims description 7
229910052751 metal Inorganic materials 0.000 claims description 3
239000002184 metal Substances 0.000 claims description 3
230000000694 effects Effects 0.000 claims description 2
238000000926 separation method Methods 0.000 claims 4
ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 2
229910052738 indium Inorganic materials 0.000 claims 2
APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims 2
150000002739 metals Chemical class 0.000 claims 2
230000005540 biological transmission Effects 0.000 abstract description 2
239000000203 mixture Substances 0.000 description 20
238000000576 coating method Methods 0.000 description 13
239000004020 conductor Substances 0.000 description 13
239000010408 film Substances 0.000 description 13
238000009434 installation Methods 0.000 description 13
239000011248 coating agent Substances 0.000 description 7
210000004027 cell Anatomy 0.000 description 6
230000008901 benefit Effects 0.000 description 4
239000011521 glass Substances 0.000 description 4
239000004372 Polyvinyl alcohol Substances 0.000 description 2
230000001419 dependent effect Effects 0.000 description 2
238000001514 detection method Methods 0.000 description 2
239000012799 electrically-conductive coating Substances 0.000 description 2
229910003437 indium oxide Inorganic materials 0.000 description 2
PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 2
239000004615 ingredient Substances 0.000 description 2
230000003287 optical effect Effects 0.000 description 2
229920002451 polyvinyl alcohol Polymers 0.000 description 2
230000005236 sound signal Effects 0.000 description 2
-1 4-heptyl Chemical group 0.000 description 1
244000198134 Agave sisalana Species 0.000 description 1
240000000662 Anethum graveolens Species 0.000 description 1
240000002132 Beaucarnea recurvata Species 0.000 description 1
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
238000010521 absorption reaction Methods 0.000 description 1
238000000862 absorption spectrum Methods 0.000 description 1
239000007795 chemical reaction product Substances 0.000 description 1
239000000470 constituent Substances 0.000 description 1
238000010276 construction Methods 0.000 description 1
230000001276 controlling effect Effects 0.000 description 1
239000013078 crystal Substances 0.000 description 1
IGARGHRYKHJQSM-UHFFFAOYSA-N cyclohexylbenzene Chemical class C1CCCCC1C1=CC=CC=C1 IGARGHRYKHJQSM-UHFFFAOYSA-N 0.000 description 1
230000009977 dual effect Effects 0.000 description 1
230000005684 electric field Effects 0.000 description 1
239000007788 liquid Substances 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000007176 multidirectional communication Effects 0.000 description 1
229920003023 plastic Polymers 0.000 description 1
230000001105 regulatory effect Effects 0.000 description 1
239000000126 substance Substances 0.000 description 1
239000010409 thin film Substances 0.000 description 1
XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
229910001887 tin oxide Inorganic materials 0.000 description 1

Landscapes

Liquid Crystal (AREA)

CA000501034A 1981-02-17 1986-02-04 Modulateur-demodulateur de lumiere et methode de communication utilisant ce dispositif Expired CA1224558A (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA000501034A CA1224558A (fr)	1981-02-17	1986-02-04	Modulateur-demodulateur de lumiere et methode de communication utilisant ce dispositif

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
US06/235,006 US4436376A (en)	1980-02-13	1981-02-17	Light modulator, demodulator and method of communication employing the same
US235006		1981-02-17
CA000396478A CA1200591A (fr)	1981-02-17	1982-02-17	Photomodulateur-demodulateur, et methode de communication qui y fait appel
CA000501034A CA1224558A (fr)	1981-02-17	1986-02-04	Modulateur-demodulateur de lumiere et methode de communication utilisant ce dispositif

Related Parent Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000396478A Division CA1200591A (fr)	1981-02-17	1982-02-17	Photomodulateur-demodulateur, et methode de communication qui y fait appel

Publications (1)

Publication Number	Publication Date
CA1224558A true CA1224558A (fr)	1987-07-21

Family

ID=25669578

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000501034A Expired CA1224558A (fr)	1981-02-17	1986-02-04	Modulateur-demodulateur de lumiere et methode de communication utilisant ce dispositif

Country Status (1)

Country	Link
CA (1)	CA1224558A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5585847A (en) *	1992-12-23	1996-12-17	Loral Fairchild Corporation	Electronic color imaging technique and structure using a very high resolution monochrome full-frame CCD imager
US5737098A (en) *	1992-12-23	1998-04-07	Loral Fairchild Corporation	Electronic color snapshot technique and structure using very high resolution monochrome full frame CCD imagers

1986
- 1986-02-04 CA CA000501034A patent/CA1224558A/fr not_active Expired

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5585847A (en) *	1992-12-23	1996-12-17	Loral Fairchild Corporation	Electronic color imaging technique and structure using a very high resolution monochrome full-frame CCD imager
US5737098A (en) *	1992-12-23	1998-04-07	Loral Fairchild Corporation	Electronic color snapshot technique and structure using very high resolution monochrome full frame CCD imagers

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Legal Events

Date	Code	Title	Description
2004-07-21	MKEX	Expiry