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公开(公告)号：JPS6396749A
公开(公告)日：1988-04-27
申请号：JP24110486
申请日：1986-10-09
Applicant: SONY CORP
Inventor： YAMAMOTO MASANOBU , SHIINA YUJI
IPC: G11B11/105 , G11B7/24 , G11B11/10
Abstract: PURPOSE:To decrease warpage of an optical recording medium by laminating a synthetic resin film via adhesive agents on a signal recording film on the side opposite to a light transparent substrate. CONSTITUTION:The signal recording film 22 is laminated on the light transpar ent substrate 21 and the synthetic resin film 24 is laminated via the adhesive agents 23, 25 on the signal recording film 22 on the side opposite to the light transparent substrate 21. Synthetic resin films which have excellent environmen tal resistance and mechanical characteristics in spite of a small thickness are selectable at a wide degree of freedom as the synthetic resin film 24. The film 24 is entirely pinhole-free and even if the film 24 is laminated via the adhesive agents 23, 25, the film has less shrinkage stress at the curing time of the adhe sive agents 23, 25. The warpage of the optical recording medium is thereby decreased.
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公开(公告)号：JPS62277627A
公开(公告)日：1987-12-02
申请号：JP12079386
申请日：1986-05-26
Applicant: SONY CORP
Inventor： YAMAMOTO MASANOBU , UMETSU NOBUHIKO
IPC: G11B7/00 , G11B7/0045 , G11B7/085
Abstract: PURPOSE:To enable both spiral and concentric optical disks to perform recording actions with approximately same accuracy and same time, by using a rotary encoder, a laser light deflector and a deflecting drive means which changes the deflecting angle of the deflector in proportion to the rotational angle of the disk. CONSTITUTION:A signal writing optical system 10 is continuously fed over the radius of a recording master disk 20 at a prescribed speed. At the same time, the signal writing laser light to be applied to the disk 20 is deflected by an acoustooptical deflector 14 so that a laser beam spot traces the concentric recording tracks 21 of the disk 20 with a track pitch W. Thus it is possible to record the preformat data received from a signal generator 1 on the tracks 21 with high accuracy.
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公开(公告)号：JPS6034171B2
公开(公告)日：1985-08-07
申请号：JP3873877
申请日：1977-04-05
Applicant: SONY CORP
Inventor： YUBI HIROSHI , SHIRAISHI TADAO , YAMAMOTO MASANOBU
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公开(公告)号：JPS59228103A
公开(公告)日：1984-12-21
申请号：JP10306483
申请日：1983-06-09
Applicant: SONY CORP
Inventor： YAMAMOTO MASANOBU
Abstract: PURPOSE:To simplify the constitution and to improve detecting accuracy, by supplying the first and second differential detected outputs of positions from a line optical detector to a subtracting circuit, and detecting the displaced quantity of a body to be measured based on the output of the subtracting circuit. CONSTITUTION:The difference between the outputs from output terminals t1 and t2 of a semiconductor position detector as a line optical detector 5 is obtained. Thus the displaced quantity of a body to be measured 1 is detected. When the added output I1+I2 of an adder circuit 7 tends to increase, a driving current for a laser-light emitting diode 3 is decreased and the amount of the light emission is suppressed. As a result the amount of incident light to the line optical detector 5 is decreased, and the increase in the added output I1+I2 is suppressed. When the added output I1+I2 tends to decrease, the decrease is likewise suppressed. Thus the sum of the first and second differential detected outputs of positions from the line optical detector 5 is made constant. Therefore, errors in the output of the detected displaced quantity comprising the subtracted output of a subtracting circuit 8 is largely decreased.
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公开(公告)号：JPS59148235A
公开(公告)日：1984-08-24
申请号：JP2107483
申请日：1983-02-10
Applicant: Sony Corp
Inventor： YAMAMOTO MASANOBU , ISHIHARA EIJI , MURATA ZENICHI
CPC classification number: H01J9/233
Abstract: PURPOSE:To enable positioning of plate bodies to be easily carried out with high accuracy by comparing the output timings of the wave forms of a transmitted- light detection output and a reflected-light detection output which are obtained by sweeping a laser beam spot on each pattern of the plate body. CONSTITUTION:In the vertical portion of each T-shaped mark pattern 30, for instance, four sets of stripes 12R, 12B and 12G constituting the vertical portion of a pattern 31 are formed, and for example seven Nesaless lines 24 constituting the vertical portion of a pattern 32 are formed corresponding to the stripes. On each of the T-shaped patterns 30a and 30b, a red laser beam spot is formed which is swept at the same phase and an equal amplitude. Seven pulses corresponding to the seven Nesaless lines 24 appear in detection outputs NA and NB delivered from a reflected-light detector, while four pulses corresponding to the four R stripes appear in detection outputs FA and FB delivered from a transmitted-light detector. The positional relationship between the patterns can be known by comparing the timings of the pulse lines.
Abstract translation: 目的：通过比较透射光检测输出的波形和反射光检测输出的输出定时，通过扫描每个激光束点获得的反射光检测输出，使得能够高精度地容易地执行板体的定位 板体的图案。 构成：在各T字形图案30的垂直部分中，例如形成构成图案31的垂直部分的4组条12R，12B和12G，例如构成构成图案31的垂直部分的7条无缝线24 形成对应于条纹的图案32。 在每个T形图案30a和30b上，形成红色激光束点，其在相同相位和相等振幅下扫描。 从反射光检测器输出的检测输出NA和NB中出现与七条Nesaless线24对应的7个脉冲，而与从传输光检测器传送的检测输出FA和FB中出现四个R条纹相对应的四个脉冲。 通过比较脉冲线的定时可以知道图案之间的位置关系。
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Patent Agency Ranking
公开(公告)号：JPS59127238A
公开(公告)日：1984-07-23
申请号：JP23424782
申请日：1982-12-30
Applicant: Sony Corp
Inventor： YAMAMOTO MASANOBU
CPC classification number: G11B7/0908
Abstract: PURPOSE:To facilitate setting of control center for focus control based upon the just focus state of a recording light beam by a focus servomechanism, by providing an objective unit which includes an objective and a driving means for focus control that drives the objective. CONSTITUTION:A command signal S9 is supplied from the 3rd output terminal O3 of a central processing circuit 19 to a driving circuit 43 and a stepping motor 44 moves a photodetector 13. When the photodetector 13 moves, return beams of a light beam for detection which is incident equally to two photodetecting elements so far and returned from a recording medium 1 are not incident equally to both photodetecting elements any more. Consequently, the difference signal S5 from a subtracting circuit 20 varies in level and a driving current (i) based upon the difference signal S5 flows through the driving means 6 for focus control to drive the objective 5, which is moved to the position where the return beams of the light beam for detection from the recording medium 1 are incident equally to the two photodetecting elements of a photodetector 13.
Abstract translation: 目的：通过提供一种包括物镜的目标单元和用于驱动物镜的聚焦控制的驱动装置，便于通过聚焦伺服机构基于记录光束的正确聚焦状态来设置用于聚焦控制的控制中心。 构成：从中央处理电路19的第3输出端子O3向驱动电路43提供指令信号S9，步进马达44使光电检测器13移动。当光检测器13移动时，返回光束 到目前为止，从记录介质1返回的两个光电检测元件的入射平均不等于两个光电检测元件。 因此，来自减法电路20的差分信号S5的电平变化，并且基于差分信号S5的驱动电流（i）流过用于聚焦控制的驱动装置6，以驱动物镜5，该物镜5被移动到 从记录介质1检测光束的返回光束入射到光检测器13的两个光电检测元件。
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公开(公告)号：JPS58215735A
公开(公告)日：1983-12-15
申请号：JP9715082
申请日：1982-06-07
Applicant: Sony Corp
Inventor： YAMAMOTO MASANOBU , OGAWA HIROSHI
CPC classification number: G11B7/24088 , G11B7/0045 , G11B7/24085 , G11B20/10527 , G11B20/1496
Abstract: PURPOSE: To increase the amount of recorded information, by using a recording medium capable of changing the depth of pits depending on the amount of exposure for attaining multi-valued digital recording of ternary or more.
CONSTITUTION: Laser light from a laser generator 1 is condensed on a recording layer 10 of a disc 9 via a mirror 2, an optical modulator 3, a mirror 5, a lens 6, a mirror 7, and an objective lens 8. The depth of pits is changed for the recording layer with the amount of exposure, allowing to record multi-valued digital signals of ternary or more. Thus, the amount of recorded information is increased in comparison with the recording of binary digital signals.
COPYRIGHT: (C)1983,JPO&JapioAbstract translation: 目的：通过使用能够根据曝光量改变凹坑的深度的记录介质来增加记录信息量，以获得三值以上的多值数字记录。 构成：来自激光发生器1的激光经由反射镜2，光学调制器3，反射镜5，透镜6，反射镜7和物镜8在光盘9的记录层10上凝结。深度 对于具有曝光量的记录层改变凹坑，允许记录三值以上的多值数字信号。 因此，与二进制数字信号的记录相比，记录信息量增加。
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公开(公告)号：JPS58204787A
公开(公告)日：1983-11-29
申请号：JP8715982
申请日：1982-05-23
Applicant: Sony Corp
Inventor： YAMAMOTO MASANOBU
CPC classification number: H02P5/00
Abstract: PURPOSE:To improve the detecting accuracy of a rotation controller by mounting a rotary plates, on which a plurality of diffraction gratings are annularly arranged at a uniform interval, on a motor shaft, providing a light emitting element and a photoreceptor at one side, receiving the reflected light by the photoreceptor, thereby controlling the rotation. CONSTITUTION:Set number of diffraction gratings 12 which are formed in phase type and annularly arranged at uniform interval are provided on the outer periphery of a rotary plate 11, and mounted on a rotational shaft of a master disk rotating motor 17. A light emitting element and a photoreceptor are integrated as a light emitting and receiving element 18, which is disposed at the position opposed to the diffraction gratings 12, the reflected light from the grating 12 is received by the photoreceptor, the output is compared with a reference pulse 24, an error voltage is inputted to a control signal generator 26 and a drive circuit 27, thereby controlling a motor 17. Accordingly, the gratings 12 are processed in high accuracy, the detector is disposed at one side to reduce the space, and readily regulated.
Abstract translation: 目的：为了提高旋转控制器的检测精度，通过将多个衍射光栅以均匀间隔环形布置的旋转板安装在电机轴上，在一侧提供发光元件和感光体，接收 由感光体反射的光，从而控制旋转。 构成：在旋转板11的外周设置以相位型形状并以均匀间隔环状排列的衍射光栅12的数量，安装在母盘旋转马达17的旋转轴上。发光元件 并且感光体被集成为发光和接收元件18，其被布置在与衍射光栅12相对的位置处，来自光栅12的反射光被感光体接收，输出与参考脉冲24进行比较， 误差电压被输入到控制信号发生器26和驱动电路27，由此控制电动机17.因此，光栅12被高精度地处理，检测器设置在一侧以减小空间，并且容易调节。
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公开(公告)号：JPS58200104A
公开(公告)日：1983-11-21
申请号：JP8364482
申请日：1982-05-18
Applicant: Sony Corp
Inventor： YAMAMOTO MASANOBU
Abstract: PURPOSE: To detect the position accurately regardless of the moving speed and width of a surface to be measured, by detecting the reflected light beams of a main beam and asecondary beams at the front and rear of the main beam from the surface to be measured, and comparing the detected output of the main beam and the reference outputs obtained through the secondary beams.
CONSTITUTION: A main beam and secondary beams at the front and rear of the main beam are made to be parallel light beams through a phase diffraction grating and projected on the lap surface of a material to be measured. Beam spots BPs, BPa, and BPb are formed on a main detector 21S and secondary detectors 21a and 21b. The outputs are sent to level comparators 25b, 45a, and 45b through preamplifiers 22, 44a, and 44b. The output of the preamplifier 22 is sent to a sample and hold circuit 23. The outputs of the comparators 45a and 45b are inputted to the circuit 23 through an AND circuit 46 and a level converter 47 as sampling pulses. The peak level of the main detector 21s is smapled and held and divided into 1/2 by a divider 24. The result is sent to the comparator 25. Thus the position is accurately detected regardless of the moving speed and the width of the lap surface.
COPYRIGHT: (C)1983,JPO&JapioAbstract translation: 目的：通过从待测表面检测主光束的反射光束和主光束前后的二次光束来检测位置，而不管被测表面的移动速度和宽度如何， 并比较主波束的检测输出和通过次级光束获得的参考输出。 构成：将主光束前后的主光束和次光束制成平行光束通过相位衍射光栅并投射在待测材料的搭接表面上。 光束点BP，BPa和BPb形成在主检测器21S和二次检测器21a和21b上。 输出通过前置放大器22,44a和44b发送到电平比较器25b，45a和45b。 前置放大器22的输出被发送到采样和保持电路23.比较器45a和45b的输出通过AND电路46和电平转换器47作为采样脉冲被输入到电路23。 主检测器21s的峰值电平被划分并保持，并由分频器24分成1/2。结果被发送到比较器25.因此，无论移动速度和搭接表面的宽度如何，都能精确地检测位置 。
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公开(公告)号：JPS58199448A
公开(公告)日：1983-11-19
申请号：JP8212282
申请日：1982-05-15
Applicant: Sony Corp
Inventor： YAMAMOTO MASANOBU
CPC classification number: G11B7/1398
Abstract: PURPOSE:To optimize the formation condition of a pit or bump by making cross section of a recording light beam elliptic. CONSTITUTION:The spot P' of the recording light beam is made elliptic and also its long diameter b' is directed to a radius direction (direction R) on an optical disk and its short sidameter a' is directed to a tangential direction (direction T), so radius-directional size of an exposure locus Q' is determined by the long diameter b' of the spot P', and the end part shape of the locus Q' depends upon the short diameter a' of the sport P'. Those values a' and b' are selected properly to optimize the formation of pit or bump.
Abstract translation: 目的：通过使记录光束的横截面椭圆形来优化凹坑或凸块的形成条件。 构成：记录光束的光斑P'为椭圆形，并且其长径b'指向光盘上的半径方向（R方向），其短边径a'指向切线方向（方向T ），所以曝光轨迹Q'的半径方向尺寸由点P'的长径b'决定，轨迹Q'的端部形状取决于运动P'的短径a'。 正确选择这些值a'和b'以优化凹坑或凸块的形成。
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