DD105921A1 - - Google Patents
Info
- Publication number
- DD105921A1 DD105921A1 DD173395A DD17339573A DD105921A1 DD 105921 A1 DD105921 A1 DD 105921A1 DD 173395 A DD173395 A DD 173395A DD 17339573 A DD17339573 A DD 17339573A DD 105921 A1 DD105921 A1 DD 105921A1
- Authority
- DD
- German Democratic Republic
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/13—Optical detectors therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
- H01S5/06209—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
- H01S5/06213—Amplitude modulation
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Head (AREA)
- Optical Couplings Of Light Guides (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Facsimile Scanning Arrangements (AREA)
- Mechanical Optical Scanning Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722244119 DE2244119C3 (de) | 1972-09-08 | Abtasteinrichtung zur Abtastung einer gespeicherten Information |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD105921A1 true DD105921A1 (es) | 1974-05-12 |
Family
ID=5855805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD173395A DD105921A1 (es) | 1972-09-08 | 1973-09-06 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3941945A (es) |
| JP (1) | JPS4969008A (es) |
| BE (1) | BE804573A (es) |
| BR (1) | BR7306957D0 (es) |
| CH (1) | CH562493A5 (es) |
| DD (1) | DD105921A1 (es) |
| FR (1) | FR2199157A1 (es) |
| GB (1) | GB1433536A (es) |
| IT (1) | IT993749B (es) |
| NL (1) | NL7312139A (es) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5760693B2 (es) * | 1974-02-12 | 1982-12-21 | Sony Corp | |
| GB1463233A (en) * | 1975-02-13 | 1977-02-02 | Standard Telephones Cables Ltd | Injection laser assembly |
| US4190775A (en) * | 1975-02-18 | 1980-02-26 | Agency Of Industrial Science & Technology | Optical memory playback apparatus |
| FR2321164A1 (fr) * | 1975-08-13 | 1977-03-11 | Thomson Csf | Procede mecano-optique de diffusion de l'information, disque et dispositifs d'enregistrement et de lecture pour la mise en oeuvre de ce procede |
| US4085296A (en) * | 1975-12-19 | 1978-04-18 | International Audio Visual, Inc. | Modulated sound reading system |
| NL7608561A (nl) * | 1976-08-02 | 1978-02-06 | Philips Nv | Optische uitleeseenheid voor het aftasten van een registratiedrager voorzien van een stra- lingsreflekterende informatiestruktuur. |
| JPS5483848A (en) * | 1977-12-16 | 1979-07-04 | Mitsubishi Electric Corp | Automatic focusing device |
| NL186121C (nl) * | 1977-12-16 | 1990-09-17 | Mitsubishi Electric Corp | Automatisch focusseerapparaat. |
| NL187413C (nl) * | 1978-03-16 | 1991-09-16 | Philips Nv | Registratiedragerlichaam, ingeschreven registratiedrager, werkwijze voor het inschrijven van het registratiedragerlichaam en inrichting voor het uitvoeren van de werkwijze en voor het uitlezen van een ingeschreven registratiedrager. |
| US4241423A (en) * | 1978-12-22 | 1980-12-23 | Rca Corporation | Optical memory with injection laser as light source and detector |
| US4333173A (en) * | 1979-06-15 | 1982-06-01 | Hitachi, Ltd. | Optical information processor with prismatic correction of laser beam shape |
| NL8004159A (nl) * | 1979-08-03 | 1981-01-22 | Hitachi Ltd | Optische opneeminrichting. |
| FR2470391A1 (fr) * | 1979-11-21 | 1981-05-29 | Thomson Csf | Dispositif optique stigmatique d'emission-reception de rayonnements coherents et tete optique d'enregistrement-lecture comprenant un tel dispositif |
| JPS57105828A (en) * | 1980-12-19 | 1982-07-01 | Matsushita Electric Ind Co Ltd | Optical disk recording and reproducing system |
| US4562569A (en) * | 1982-01-05 | 1985-12-31 | California Institute Of Technology | Tandem coupled cavity lasers with separate current control and high parasitic resistance between them for bistability and negative resistance characteristics and use thereof for optical disc readout |
| US4633451A (en) * | 1982-06-30 | 1986-12-30 | International Business Machines Corporation | Optical servo for magnetic disks |
| JPS6035344A (ja) * | 1983-08-08 | 1985-02-23 | Hitachi Tobu Semiconductor Ltd | 発光装置およびこれを用いた光学的信号処理装置 |
| NL8303168A (nl) * | 1983-09-14 | 1985-04-01 | Philips Nv | Inrichting voor het uitlezen van balken gecodeerde informatie. |
| EP0175839A1 (en) * | 1984-09-26 | 1986-04-02 | Qew Corporation | Data transducer restraint |
| US4658146A (en) * | 1985-03-07 | 1987-04-14 | Laser Dynamics Inc. | Extended cavity laser readout apparatus |
| US4707814A (en) * | 1985-03-14 | 1987-11-17 | Laser Dynamics, Inc. | Extended cavity laser recording method and apparatus |
| CA1258906A (en) * | 1985-04-22 | 1989-08-29 | Hiroshi Oinoue | Semiconductor laser apparatus for optical head |
| JPS6233489A (ja) * | 1985-08-07 | 1987-02-13 | Kokusai Denshin Denwa Co Ltd <Kdd> | 発光装置 |
| DE3544824A1 (de) * | 1985-12-18 | 1987-06-19 | Siemens Ag | Miniaturisierbarer schreib/lesekopf fuer ein optisches speichersystem |
| DE3943470A1 (de) * | 1989-05-29 | 1990-12-13 | Rainer Thiessen | Gegenstands-naeherungs und troepfchendetektor |
| US5268564A (en) | 1990-08-03 | 1993-12-07 | Symbol Technologies, Inc. | Bar code scanner actuated by detection of scanner motion |
| DE102005055523A1 (de) * | 2005-11-18 | 2007-05-31 | Elexxion Gmbh | Verfahren zur medizinischen Behandlung von Patienten |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2654810A (en) * | 1949-11-15 | 1953-10-06 | Miessner Inventions Inc | Photoelectric translating system |
| US3235672A (en) * | 1961-11-17 | 1966-02-15 | American Optical Corp | Optical sound recording and reproduction |
| NL299208A (es) * | 1962-10-30 | |||
| GB1007876A (en) * | 1963-08-15 | 1965-10-22 | Mullard Ltd | Improvements in and relating to opto-electronic semiconductor devices |
| US3290539A (en) * | 1963-09-16 | 1966-12-06 | Rca Corp | Planar p-nu junction light source with reflector means to collimate the emitted light |
| DE1264513C2 (de) * | 1963-11-29 | 1973-01-25 | Texas Instruments Inc | Bezugspotentialfreier gleichstromdifferenzverstaerker |
| US3431513A (en) * | 1964-09-28 | 1969-03-04 | Nippon Electric Co | Twin semiconductor laser |
| US3353051A (en) * | 1965-12-29 | 1967-11-14 | Gen Electric | High efficiency semiconductor light emitter |
| US3691318A (en) * | 1968-02-13 | 1972-09-12 | Ted Bildplatten | Pressure pickup transducers for mechanically stored signals |
| US3644740A (en) * | 1969-07-22 | 1972-02-22 | Hughes Aircraft Co | Control circuit for biasing a photodetector so as to maintain a selected false alarm rate |
| EG11450A (en) * | 1970-05-13 | 1978-09-30 | Ted Bildplatten | A signals which have been recorded and stored on a suppor |
| US3702465A (en) * | 1971-08-04 | 1972-11-07 | Westinghouse Electric Corp | Electro-optic mass memory |
| DE2140500C3 (de) * | 1971-08-12 | 1975-05-22 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Laserstrahlenempfänger |
| JPS5215966Y2 (es) * | 1972-04-24 | 1977-04-11 | ||
| US3812477A (en) * | 1973-04-09 | 1974-05-21 | Ibm | Method for superresolution in an optical memory |
-
1973
- 1973-09-03 NL NL7312139A patent/NL7312139A/xx unknown
- 1973-09-05 CH CH1274873A patent/CH562493A5/xx not_active IP Right Cessation
- 1973-09-06 BR BR6957/73A patent/BR7306957D0/pt unknown
- 1973-09-06 FR FR7332232A patent/FR2199157A1/fr not_active Withdrawn
- 1973-09-06 IT IT28643/73A patent/IT993749B/it active
- 1973-09-06 DD DD173395A patent/DD105921A1/xx unknown
- 1973-09-07 BE BE135411A patent/BE804573A/xx unknown
- 1973-09-07 JP JP48101035A patent/JPS4969008A/ja active Pending
- 1973-09-07 GB GB4223173A patent/GB1433536A/en not_active Expired
- 1973-09-10 US US05/395,456 patent/US3941945A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2244119A1 (de) | 1974-04-04 |
| US3941945A (en) | 1976-03-02 |
| FR2199157A1 (es) | 1974-04-05 |
| IT993749B (it) | 1975-09-30 |
| NL7312139A (es) | 1974-03-12 |
| JPS4969008A (es) | 1974-07-04 |
| BE804573A (fr) | 1974-01-02 |
| DE2244119B2 (de) | 1975-07-17 |
| GB1433536A (es) | 1976-04-28 |
| BR7306957D0 (pt) | 1974-07-25 |
| CH562493A5 (es) | 1975-05-30 |