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公开(公告)号：JPH09115673A
公开(公告)日：1997-05-02
申请号：JP29180895
申请日：1995-10-13
Applicant: SONY CORP
Inventor： ASAI NOBUTOSHI , KIJIMA YASUNORI
Abstract: PROBLEM TO BE SOLVED: To correctly control brightness of each picture element, and constantly realize clear light emission, that is image display by controlling a current quantity flowing through the picture elements. SOLUTION: An organic electroluminescent element 25 comprising plural picture elements PX composed in such a way that the picture elements PX selectively emit light by a current is provided with a current control circuit part 40 to control a current through the picture elements PX by a brightness signal from the external. This current control circuit part 40 is composed of a reference resistance Rref which can monitors a current through each of the plural picture elements PX as a voltage, a MOSFET as a current control element connected between the reference resistance Rref and the picture element PX, and an operation amplifier OPA to output a control voltage Vcs to the MOSFET by comparison of the monitored voltage with the brightness signal voltage from the external.
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公开(公告)号：JPH0887772A
公开(公告)日：1996-04-02
申请号：JP21897694
申请日：1994-09-13
Applicant: SONY CORP
Inventor： ASAI NOBUTOSHI , DOI MASATO
Abstract: PURPOSE: To make the optical device to be applied to an optical pickup, etc., compact in size and free from adjustment and to increase the intensity of a photodetecting signal. CONSTITUTION: This device is provided with an optical element 17 having light emitting part 14 and a light receiving part 15 on the same substrate, for photodetecting return light from a part 12 to be irradiated with outgoing light LF emitted from the light emitting part 14 by the light receiving part 15, a double refraction element 19 and a 1/4-wavelength plate 20. Then, the position of the return light on the optical element 17 is deviated by the double refraction element 19.
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公开(公告)号：JPH0887755A
公开(公告)日：1996-04-02
申请号：JP21897994
申请日：1994-09-13
Applicant: SONY CORP
Inventor： ASAI NOBUTOSHI , DOI MASATO
Abstract: PURPOSE: T attain the miniaturizing of and the eliminating of the adjustment of optical devices such as optical pickup and so forth and to attain the increasing of strength of a light receiving signal by providing an optical system on the same base plate while shifting optical paths of an outward light and a returned light with the mirror of a light path shifting element. CONSTITUTION: The optical system of an optical pickup 11 is provided on the same base plate and the P-wave of the outgoing light from a laser diode LD is almost reflected at the reflection film surface of the surface of a mirror 20 having a polarization characteristic and irradiates an optical disk 12 through a 1/4 frequency plate 21, a reflection mirror 19 and an objective lens 18. The turned light from the disk 12 moves backward the same optical path as the outgoing light to become an S--wave and is made incident on the mirror 20 and transmits the reflection film surface having the polarization characteristic to be reflected at a reflection surface which does not have the polarization characteristic and is made incident on a photodiode PD by passing through an optical path shifted from the optical path of the outgoing light. By this constitution, the miniaturizing of the optical device of an optical pickup device, the eliminating of the adjustment of the device and the increasing of the strength of the light receiving signal are attained.
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公开(公告)号：JPH07304258A
公开(公告)日：1995-11-21
申请号：JP9850194
申请日：1994-05-12
Applicant: SONY CORP
Inventor： ASAI NOBUTOSHI , KIJIMA YASUNORI , IWAMURA TAKASHI
IPC: B41M5/26 , G11B7/00 , G11B7/0045 , G11B7/24 , G11B7/244
Abstract: PURPOSE:To obtain an optical recording medium capable of obtaining a reproduction signal high in C/N ratio from the recording pattern of a pit formed at a cycle shorter than the diffraction limit of a reproduction optical system by recording a data signal on the saturable absorbing dye-containing layer formed on a permeable substrate by the change of an attenuation coefficient. CONSTITUTION:In an optical recording medium irradiated with reproduction light on the substrate side thereof and reproducing a signal by detecting the change of the quantity of the reflected light thereof, a high refractive layer 2, a saturable absorbing dyecontaining layer 3 and a reflecting layer 4 are successively formed on a permeable substrate. A pit 5 is formed in the pattern corresponding to a data signal by changing the attenuation coefficient (being the coefficient of the false part of a double refractive index and showing the degree of light absorption) of the saturable absorbing dye-containing layer 3. As the saturable absorbing dye contained in the saturable absorbing dye- containing layer 3, a naphthalocyanine derivative is used and the attenuation coefficient is changed by a photo-bleaching method to record a data signal.
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公开(公告)号：JPH0789107A
公开(公告)日：1995-04-04
申请号：JP19900493
申请日：1993-07-16
Applicant: SONY CORP
Inventor： SHINOZAKI KENJI , HIRANO EIKI , KAWAKADO KOICHI , ASAI NOBUTOSHI , TOMITA HIDEMI , SATO SHUJI , OGATA MASANORI , SHIODA HIROYUKI
Abstract: PURPOSE:To form an image of high quality by applying the heat generated by a heating source to a recording material to heat the same and providing the heating medium supporting the recording material and holding the gap between the recording medium and a material to be recorded to a specific distance and heating the recording material through the heating medium to transfer the same to the material to be recorded. CONSTITUTION:A heating medium 3 supports a recording material A so as to apply the heat generated by a heating source 5 to the recording material A to heat the same and the gap (d) between the recording material A and a material to be recorded is held to 1-100mum and the recording material A is heated through the heating medium 3 to be transferred to the material 4 to be recorded. As a result, recording of high quality is ensured and heat efficiency is enhanced and miniaturization and wt. reduction become easy and waste such as a used ink sheet is not generated.
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Patent Agency Ranking
公开(公告)号：JPH05297511A
公开(公告)日：1993-11-12
申请号：JP10468492
申请日：1992-04-23
Applicant: SONY CORP
Inventor： KISHII NORIYUKI , SHIRAI KATSUYA , TAMURA SHINICHIRO , ASAI NOBUTOSHI , IWAMURA TAKASHI , SETO NOBUYOSHI
Abstract: PURPOSE:To stabilize characteristic, to improve a recording state and to enable the execution of recording with high efficiency by executing good recording and reproducing without deterioration by stepwise two photon excitation in the wavelength multiplex recording medium and wavelength multiplex recording method utilizing a light hole burning phenomenon. CONSTITUTION:The wavelength multiplex recording medium is obtd. by dispersing zinc tetraphenyl porphine and adamantane bromide into a supporting material or dispersing dyestuff which has zinc tetraphenyl porphine skeleton and is introduced with electron acceptors as the substitution group into the supporting material. Information signals are recorded by stepwise two photon excitation on the wavelength multiplex recording medium.
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公开(公告)号：JPH05158089A
公开(公告)日：1993-06-25
申请号：JP31934491
申请日：1991-12-03
Applicant: SONY CORP
Inventor： BOON HAWAASU , FUJIWARA ICHIRO , ASAI NOBUTOSHI , KISHII NORIYUKI , TAMURA SHINICHIRO
Abstract: PURPOSE:To stably transfer a monomolecular film on a substrate as a film and to stably form a Langmuir-Blodgett(LB) film by using an org. thin film in which monomolecular layers contg. a specified compd. are laminated in plural layers. CONSTITUTION:This org. nonlinear optical material is shown by the formula where 20
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公开(公告)号：JPH05109121A
公开(公告)日：1993-04-30
申请号：JP26793491
申请日：1991-10-16
Applicant: SONY CORP
Inventor： ASAI NOBUTOSHI
Abstract: PURPOSE:To greatly prolong the life of the tape-shaped optical recording medium by drastically decreasing the contact with a rotary drum at the time of traveling of the recording medium. CONSTITUTION:An optical recording layer 12 is formed on one surface of a tape-shaped flexible base body 11. A PMMA layer 13 is applied at a suitable thickness on the other surface of this tape-shaped flexible base body 11 in such a manner that the tape-shaped center on one surface side of the tape- shaped flexible base body 11 bulges from both side edges thereof toward the direction where there is an optical system for recording and reproducing.
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公开(公告)号：JPH03274545A
公开(公告)日：1991-12-05
申请号：JP7592790
申请日：1990-03-26
Applicant: SONY CORP
Inventor： TAMURA SHINICHIRO , KISHII NORIYUKI , ASAI NOBUTOSHI , SETO NOBUYOSHI
Abstract: PURPOSE:To allow the execution of good recording and reproducing without deterioration by dispersing a light absorptive dye and electron receptor or electron donor into a supporting material, specifying the free energy change of an electron transfer reaction and executing the recording by stepwise two photon stimulation. CONSTITUTION:The light absorptive dye and the electron receptor or electron donor are dispersed into the supporting material and the free energy change DELTAG of the electron transfer reaction is specified to >=-2.0eV; in addition, the recording is executed by the stepwise two photon stimulation. The recording is executed by the photochemical hole burning by the stepwise two photon stimulation if the free energy change DELTAG of the electron transfer reaction is specified to >=-2.0eV by adding the electron receptor or electron donor to the light absorbing dye in such a manner, then this material is cooled to a cryogenic temp. and is simultaneously irradiated with wavelength selecting light and gate light. The reading-out can be executed by the irradiation of only the wavelength selecting light, the photochemical burning is not generated by the irradiation with only the wavelength selecting light and the recording state is maintained as it is. The good recording and reproducing are executed in this way without deterioration.
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公开(公告)号：JPH02179790A
公开(公告)日：1990-07-12
申请号：JP33429588
申请日：1988-12-29
Applicant: SONY CORP
Inventor： ASAI NOBUTOSHI , MATSUZAWA NOBUYUKI , TAMURA SHINICHIRO , KISHII NORIYUKI
Abstract: PURPOSE:To provide high reflectivity and to enhance recording sensitivity by containing a substance mainly absorbing laser beam and a substance mainly deteriorated and decomposed by heating in a recording layer. CONSTITUTION:In a recording layer, an org. dye material is used as a recording material and two kinds of substances are also used in a mixed state. The first substance (component 1) is one mainly absorbing laser beam and, concretely, there are a cyannine dye, a metal complex dye, a phthalocyanine dye and a naphthalocyanine dye. The second substance (component 2) absorbs almost no laser wavelength and is deteriorated and decomposed with a sudden temp. rise due to laser irradiation to generate gas. As a substance usable in the component 2, a cyanine dye (absorbing no laser wavelength) and a cumarine dye are designated. Herein, the mixing ratio of two kinds of the substances compounded with the recording layer is regulated to easily set reflectivity to 70% or more.
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