RU94032157A - METHOD AND DEVICE FOR RECORDING INFORMATION - Google Patents

METHOD AND DEVICE FOR RECORDING INFORMATION

Info

Publication number
RU94032157A
RU94032157A RU94032157/28A RU94032157A RU94032157A RU 94032157 A RU94032157 A RU 94032157A RU 94032157/28 A RU94032157/28 A RU 94032157/28A RU 94032157 A RU94032157 A RU 94032157A RU 94032157 A RU94032157 A RU 94032157A
Authority
RU
Russia
Prior art keywords
laser beam
light modulator
light
focal point
recording information
Prior art date
Application number
RU94032157/28A
Other languages
Russian (ru)
Other versions
RU2121720C1 (en
Inventor
Кубота Сигео
Фукумото Атсуси
Суганума Хироси
Original Assignee
Сони Корпорейшн
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
Priority claimed from JP4278912A external-priority patent/JPH06131686A/en
Application filed by Сони Корпорейшн filed Critical Сони Корпорейшн
Publication of RU94032157A publication Critical patent/RU94032157A/en
Application granted granted Critical
Publication of RU2121720C1 publication Critical patent/RU2121720C1/en

Links

Claims (1)

Способ и устройство для записи информации, в которых лазерный луч с низкой когерентностью и высокой выходной интенсивностью, излучаемый полупроводниковым лазером 21, имеющим широкую площадь излучения, направлен на звуковую дорожку 25в кинопленки 25 после модуляции света с помощью модулятора света 23 в соответствии с двойным лучепреломлением в электрическом поле. Модулятор света 23 расположен в пределах глубины резкости лазерного луча, который имеет фокальную точку в промежутке между модулятором света 23 и формирующей изображение линзой 24. Время для записи речевых данных можно сократить посредством использования лазерного луча, в то время как помехи в виде спеклов можно подавить, а характеристику формирования изображения можно улучшить с помощью регулирования фокальной точки лазерного луча, как было описано выше. Кроме того, поскольку лазерный луч представляет свет с низкой когерентностью, нет необходимости обеспечивать поляризующую платину, так что количество элементов можно снизить до минимума, упрощая конструкцию с целью снижения производственных затрат.
Figure 00000001
Method and device for recording information in which a laser beam with low coherence and high output intensity, emitted by a semiconductor laser 21 having a wide radiation area, is directed to the sound track 25c of the film 25 after modulating the light with a light modulator 23 in accordance with double beam refraction electric field. The light modulator 23 is located within the depth of field of the laser beam, which has a focal point between the light modulator 23 and the imaging lens 24. The time for recording voice data can be reduced by using a laser beam, while speckle interference can be suppressed, and the imaging characteristic can be improved by adjusting the focal point of the laser beam, as described above. In addition, since the laser beam represents light with low coherence, it is not necessary to provide polarizing platinum, so that the number of elements can be minimized by simplifying the design in order to reduce production costs.
Figure 00000001
RU94032157/28A 1992-10-16 1993-10-18 Device for information storage RU2121720C1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPP4-278912 1992-10-16
JP4278912A JPH06131686A (en) 1992-10-16 1992-10-16 Method and device for information recording

Publications (2)

Publication Number Publication Date
RU94032157A true RU94032157A (en) 1996-01-27
RU2121720C1 RU2121720C1 (en) 1998-11-10

Family

ID=17603828

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94032157/28A RU2121720C1 (en) 1992-10-16 1993-10-18 Device for information storage

Country Status (9)

Country Link
US (1) US5523996A (en)
EP (1) EP0617830B1 (en)
JP (1) JPH06131686A (en)
KR (1) KR100281792B1 (en)
CN (1) CN1090414A (en)
AU (1) AU665873B2 (en)
DE (1) DE69320025T2 (en)
RU (1) RU2121720C1 (en)
WO (1) WO1994009492A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6411377B1 (en) * 1991-04-02 2002-06-25 Hitachi, Ltd. Optical apparatus for defect and particle size inspection
US5825743A (en) * 1993-04-06 1998-10-20 Zen Research N.V. Illuminating multiple data tracks of an optical disk with a laser source of reduced coherence
US5852591A (en) * 1994-04-23 1998-12-22 Sony Corporation Magneto-optical recording medium and head unit for a magneto-optical recording medium
JPH0973659A (en) * 1995-09-07 1997-03-18 Pioneer Electron Corp Optical disk master disk recorder
WO2000026723A1 (en) * 1998-10-30 2000-05-11 Sony Corporation Master negative film making apparatus, master negative film making method, and master negative film
US6145742A (en) 1999-09-03 2000-11-14 Drexler Technology Corporation Method and system for laser writing microscopic data spots on cards and labels readable with a CCD array

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085296A (en) * 1975-12-19 1978-04-18 International Audio Visual, Inc. Modulated sound reading system
US4603099A (en) * 1982-11-22 1986-07-29 Drexler Technology Corporation Method for recording motion picture images and laser written data
US4600280A (en) * 1984-07-16 1986-07-15 Clark Lloyd D Digital audio recording/playback system for motion picture film
JPH01315708A (en) * 1988-06-15 1989-12-20 Sony Corp Optical fiber and light emitting device formed by using said fiber
US5194996A (en) * 1990-04-16 1993-03-16 Optical Radiation Corporation Digital audio recording format for motion picture film
US5386255A (en) * 1990-09-28 1995-01-31 Digital Theater Systems, L.P. Motion picture digital sound system and method with primary sound storage edit capability
US5155510A (en) * 1990-11-29 1992-10-13 Digital Theater Systems Corporation Digital sound system for motion pictures with analog sound track emulation

Similar Documents

Publication Publication Date Title
FR2424603A1 (en) OPTICAL INFORMATION RECORDING DEVICE
ES458637A1 (en) Optical scanning device
FR2312794A1 (en) OPTICAL SCANNING DEVICE, ESPECIALLY FOR IMAGE RECORDING BY LIGHT BEAM MODULE
FR2435781B1 (en) RECORD HOLDER HAVING AN INFORMATION STRUCTURE REFLECTING OPTICALLY READABLE RADIATION
KR910014884A (en) Devices for reading the rectangular part of the ongoing storage medium
FR2646245B1 (en) OPTICAL READING DEVICE FOR OPTICAL RECORDING MEDIUM
RU94032157A (en) METHOD AND DEVICE FOR RECORDING INFORMATION
FR2403575A1 (en) OPTICAL SYSTEM FOR REPRODUCTION OF INFORMATION
JPS58154913U (en) optical scanning mechanism
SU814099A1 (en) Device for producing holograms
JPH0612677A (en) Method for recording, reading and outputting optical disk
KR940012277A (en) Optical pickup using light emitting lamp
JPS5461543A (en) Recording method
SU999099A1 (en) Device for optical recording of information
JPS55163566A (en) Hologram lens and its production and optical system signal using this hologram lens
SU1108380A1 (en) Optical system for picture restoration
ES2039507T3 (en) READING AND / OR WRITING DEVICE OF AN AUXILIARY BAND OF A FILM FILM, IN PARTICULAR, OF A SOUND BAND, AND LIGHTING HEAD FOR THIS DEVICE.
JPS5499645A (en) Optical point scanning device
JPS5694530A (en) Optical signal reader
RU98111965A (en) MICROSCOPE WITH BRIGHTNESS AMPLIFIER
ATE247834T1 (en) OPTICAL SCANNING DEVICE WITH A READING HEAD
SU1151920A1 (en) Device for data input into coherent optical processor
SU1048307A1 (en) Scanning interferential device having background compensation capability
JPS53110861A (en) Variable magnification recording method using laser
RU93050181A (en) LASER DEVICE FOR PHOTO REGISTRATION OF FAST-VARIABLE PROCESSES