GB1220972A – Improvements in optical apparatus
– Google Patents
GB1220972A – Improvements in optical apparatus
– Google Patents
Improvements in optical apparatus
Info
Publication number
GB1220972A
GB1220972A
GB50504/68A
GB5050468A
GB1220972A
GB 1220972 A
GB1220972 A
GB 1220972A
GB 50504/68 A
GB50504/68 A
GB 50504/68A
GB 5050468 A
GB5050468 A
GB 5050468A
GB 1220972 A
GB1220972 A
GB 1220972A
Authority
GB
United Kingdom
Prior art keywords
light beam
deflecting
reflecting
elements
deflecting element
Prior art date
1967-11-18
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
GB50504/68A
Inventor
Kurt Kosanke
Werner Wolfgang Kulcke
Erhard Max
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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.)
1967-11-18
Filing date
1968-10-24
Publication date
1971-01-27
1968-10-24
Application filed by International Business Machines Corp
filed
Critical
International Business Machines Corp
1971-01-27
Publication of GB1220972A
publication
Critical
patent/GB1220972A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
G02F1/29—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 position or the direction of light beams, i.e. deflection
G02F1/31—Digital deflection, i.e. optical switching
Abstract
1,220,972. Light deflectors. INTERNATIONAL BUSINESS MACHINES CORP. 24 Oct., 1968 [18 Nov., 1967], No. 50504/68. Heading H4F. A light deflector comprises a switchable electro-optic half-wave plate 6, Fig. 2, selectively operable to change the plane of polarization of a linearly polarized light beam 1 by 90 degrees, and a deflecting element 40 constructed of a plurality of transparent layers, adjacent layers having different refractive indices, and positioned so that the light beam is incident at Brewster’s angle and is thus transmitted through or reflected from the deflecting element depending on its plane of polarization. The reflected light beam is aligned with the original direction of the light beam by means of reflecting element 50. In the arrangement as shown in Fig. 2 including multi-layer deflecting elements 40-46, and reflecting elements 50, 56, by selectively energizing electro-optic half-wave crystals 6, 26 and 36 the light beam may be brought to any one of the positions 1f-1n. In a further arrangement, Fig. 3 (not shown) the deflecting elements 41 and 42, and the reflecting elements 51 and 52 of Fig. 2 each comprise one larger deflecting element and reflecting element, respectively. Each deflecting element comprises a ground glass plate having alternate 1 micron layers of titanium dioxide and silicon dioxide placed thereon. The reflecting elements may be curved.
GB50504/68A
1967-11-18
1968-10-24
Improvements in optical apparatus
Expired
GB1220972A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DEJ0035062
1967-11-18
Publications (1)
Publication Number
Publication Date
GB1220972A
true
GB1220972A
(en)
1971-01-27
Family
ID=7205292
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB50504/68A
Expired
GB1220972A
(en)
1967-11-18
1968-10-24
Improvements in optical apparatus
Country Status (10)
Country
Link
US
(1)
US3540794A
(en)
AT
(1)
AT306405B
(en)
BE
(1)
BE722453A
(en)
CH
(1)
CH474921A
(en)
DE
(1)
DE1589980A1
(en)
ES
(1)
ES359944A1
(en)
FR
(1)
FR1599818A
(en)
GB
(1)
GB1220972A
(en)
NL
(1)
NL6816262A
(en)
SE
(1)
SE348613B
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4553822A
(en)
*
1981-09-21
1985-11-19
Siemens Aktiengesellschaft
Optical polarizer having a dielectric multiple layer system
US4960320A
(en)
*
1988-05-16
1990-10-02
Think Laboratory Co., Ltd.
Optical beam splitting method and an optical beam splitting/modulation method
Families Citing this family (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3703138A
(en)
*
1971-03-19
1972-11-21
Louis M Moyroud
Photocomposing machine
US3743378A
(en)
*
1971-07-30
1973-07-03
Ampex
Optical intensity matching means for two light beams
EP0062006A3
(en)
*
1981-03-30
1985-12-04
Asulab S.A.
Method and apparatus for repeatedly deflecting a beam of coherent radiation
EP0435296B1
(en)
*
1989-12-28
1994-10-05
Fujitsu Limited
Optical space switch and network with such optical space switches
Family Cites Families (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
BE532679A
(en)
*
US3026763A
(en)
*
1957-05-08
1962-03-27
Alvin M Marks
Light polarizing device
US3401593A
(en)
*
1965-10-11
1968-09-17
Altman Gerald
Projection system for reflected images utilizing polarized light
1967
1967-11-18
DE
DE19671589980
patent/DE1589980A1/en
active
Pending
1968
1968-09-04
US
US757302A
patent/US3540794A/en
not_active
Expired – Lifetime
1968-10-16
CH
CH1543168A
patent/CH474921A/en
not_active
IP Right Cessation
1968-10-17
BE
BE722453D
patent/BE722453A/xx
unknown
1968-10-24
GB
GB50504/68A
patent/GB1220972A/en
not_active
Expired
1968-10-29
FR
FR1599818D
patent/FR1599818A/fr
not_active
Expired
1968-11-04
AT
ATA10707/68A
patent/AT306405B/en
not_active
IP Right Cessation
1968-11-07
ES
ES359944A
patent/ES359944A1/en
not_active
Expired
1968-11-13
SE
SE15358/68A
patent/SE348613B/xx
unknown
1968-11-15
NL
NL6816262A
patent/NL6816262A/xx
unknown
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4553822A
(en)
*
1981-09-21
1985-11-19
Siemens Aktiengesellschaft
Optical polarizer having a dielectric multiple layer system
US4960320A
(en)
*
1988-05-16
1990-10-02
Think Laboratory Co., Ltd.
Optical beam splitting method and an optical beam splitting/modulation method
Also Published As
Publication number
Publication date
SE348613B
(en)
1972-09-04
ES359944A1
(en)
1970-06-16
BE722453A
(en)
1969-04-01
FR1599818A
(en)
1970-07-20
NL6816262A
(en)
1969-05-20
DE1589980A1
(en)
1971-03-18
CH474921A
(en)
1969-06-30
AT306405B
(en)
1973-02-15
US3540794A
(en)
1970-11-17
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