FR1514511A - Lecture optique - Google Patents
Lecture optiqueInfo
- Publication number
- FR1514511A FR1514511A FR8392A FR06008392A FR1514511A FR 1514511 A FR1514511 A FR 1514511A FR 8392 A FR8392 A FR 8392A FR 06008392 A FR06008392 A FR 06008392A FR 1514511 A FR1514511 A FR 1514511A
- Authority
- FR
- France
- Prior art keywords
- optical reading
- reading
- optical
- 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
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
- G11C13/06—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using magneto-optical elements
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US541341A US3418483A (en) | 1966-04-08 | 1966-04-08 | Enhanced faraday rotation structure |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1514511A true FR1514511A (fr) | 1968-02-23 |
Family
ID=24159174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8392A Expired FR1514511A (fr) | 1966-04-08 | 1967-03-01 | Lecture optique |
Country Status (4)
Country | Link |
---|---|
US (1) | US3418483A (fr) |
DE (1) | DE1524781C3 (fr) |
FR (1) | FR1514511A (fr) |
GB (1) | GB1138997A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2485241A1 (fr) * | 1980-06-23 | 1981-12-24 | Sharp Kk | Element de memorisation magneto-optique |
EP0078673A2 (fr) * | 1981-10-29 | 1983-05-11 | Sharp Kabushiki Kaisha | Montage de tête magnéto-optique |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3927946A (en) * | 1968-03-21 | 1975-12-23 | Sperry Rand Corp | Ring laser frequency biasing mechanism |
US3651281A (en) * | 1969-06-06 | 1972-03-21 | Carl H Becker | Laser recording system using photomagnetically magnetizable storage medium |
CA1185013A (fr) * | 1981-01-14 | 1985-04-02 | Kenji Ohta | Support de memoire magneto-optique |
US4525028A (en) * | 1981-04-23 | 1985-06-25 | Raytheon Company | Enhanced magnetic mirror |
US4649451A (en) * | 1982-09-27 | 1987-03-10 | Canon Kabushiki Kaisha | Magneto-optical recording medium having alternately-layered high and low refractive index layers |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL278562A (fr) * | 1961-05-19 |
-
1966
- 1966-04-08 US US541341A patent/US3418483A/en not_active Expired - Lifetime
-
1967
- 1967-03-01 FR FR8392A patent/FR1514511A/fr not_active Expired
- 1967-03-10 GB GB11272/67A patent/GB1138997A/en not_active Expired
- 1967-04-07 DE DE1524781A patent/DE1524781C3/de not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2485241A1 (fr) * | 1980-06-23 | 1981-12-24 | Sharp Kk | Element de memorisation magneto-optique |
EP0078673A2 (fr) * | 1981-10-29 | 1983-05-11 | Sharp Kabushiki Kaisha | Montage de tête magnéto-optique |
EP0078673A3 (en) * | 1981-10-29 | 1984-03-28 | Sharp Kabushiki Kaisha | Magneto-optical head assembly |
Also Published As
Publication number | Publication date |
---|---|
DE1524781A1 (de) | 1970-11-26 |
GB1138997A (en) | 1969-01-01 |
US3418483A (en) | 1968-12-24 |
DE1524781B2 (de) | 1973-05-17 |
DE1524781C3 (de) | 1973-12-13 |
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