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21. 发明专利

JP2001034996A OPTICAL PICKUP 失效
公开(公告)号：JP2001034996A
公开(公告)日：2001-02-09
申请号：JP21166599
申请日：1999-07-27
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HORINOUCHI SHOGO , NAKAJIMA KAZUYUKI , HARUGUCHI TAKASHI , KOJIMA KOKI , GOTO HIROSHI
IPC分类号： G11B7/135 , G11B7/1369 , G11B7/1392
摘要： PROBLEM TO BE SOLVED: To securely correct aberration with a simple configuration without increasing a component for correcting aberration and miniaturize a pickup and improve productivity by controlling the aberration of the emission luminous flux of a condensation means for condensing incidence light at a record medium only by an aberration correction means. SOLUTION: Emission light 96 of an emission point 9a of a light source 9 passes through an optical path division means 12 of a first inclined surface 11a of a second optical member 11, is reflected by an optical path division means 15, and then is converted to a luminous flux 9c by a collimator lens 16. Then, the wave front of transmission light is controlled by an aberration correction means 307, and coma aberration being generated by disk tilt is corrected, thus correcting the wave front of transmission light in advance. DC polarization whose wave front has been adjusted is applied to a 1/4 wavelength plate 308. In this case, a voltage is applied to it and optical anisotropy is generated in the direction of an electric field when viewed from an incidence side by the generated electric field. In this case, the 1/4 wavelength plate 308 is arranged and controlled so that it is inclined by 45 degrees for the DC polarization as circular polarization, and luminous flux 9d is condensed at a low-density optical disk 19 by a condensation lens 17.

22. 发明专利

JPH10208252A OPTICAL DEVICE AND ASSEMBLING METHOD FOR THE SAME DEVICE 失效
公开(公告)号：JPH10208252A
公开(公告)日：1998-08-07
申请号：JP1360997
申请日：1997-01-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMAGUCHI HIDEO , HARUGUCHI TAKASHI
IPC分类号： G11B7/08
摘要： PROBLEM TO BE SOLVED: To constantly reproduce an optical disk having warpage by inclining optical axes of an optical pickup which is to be transferred from the inner circumferential side to the outer circumferential side of the optical disk by a prescribed angle with respect to the rotary shaft of a spindle motor. SOLUTION: An optical pickup is transferably supported by inserting a supporting shaft and a guide shaft into the optical pickup. A spindle motor part 10 is fixed to a module base so as to keep the Z axis of the rotary shaft of the spindle motor part 10 and the X axis of the supporting shaft and the guide shaft in the angle of 90 degrees. Optical axis of the optical pickup are adjusted so as to be inclined by the prescribed angle θ degrees with respect to a perpendicular line to be extended from the recording surface of a reference optical disk. However, most of optical disks to be actually used have warpage parts 9a with going to the outer circumferential side by a secular change and stress at the time of loadings and unloadings, problems are not encountered because the permitted limit of an inclination of this device is ±1 degree.

23. 发明专利

JPH10177733A OPTICAL PICKUP 失效
公开(公告)号：JPH10177733A
公开(公告)日：1998-06-30
申请号：JP33535296
申请日：1996-12-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOJIMA KOKI , HARUGUCHI TAKASHI
IPC分类号： G11B7/135
摘要： PROBLEM TO BE SOLVED: To provide a thin optical pickup. SOLUTION: This optical pickup is provided with a light source emitting light, a photodetector light receiving reflection light from an optical recording medium 4 and an objective lens 3 converging the emitted light on the recording surface of the optical recording medium, and the objective lens 3 is formed integrally with a convergent action part 3b substantially performing a convergent action and a flange part 3a thinner than the convergent action part 3b along the outer periphery of the convergent action part by resin.

24. 发明专利

JPH10177731A OPTICAL PICKUP 失效
公开(公告)号：JPH10177731A
公开(公告)日：1998-06-30
申请号：JP33535896
申请日：1996-12-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HARUGUCHI TAKASHI
IPC分类号： G11B7/125
摘要： PROBLEM TO BE SOLVED: To make the optical pickup thin structive and miniature and also easily adjustable by disposing individual optical units and individual laser volumes in different planes respectively and also disposing these individual laser volumes in the same plane. SOLUTION: This optical pickup is equipped with the optical units 21 and 23 as 1st and 2nd light sources, a carriage 41 mounted with these optical units 21 and 23 and the volumes 30 and 31 for adjusting the light sources of the optical units 21 and 23. The volumes 30 and 31 are disposed to be adjacent to the same side surface part of the carriage 41, whereas this diposing plane is different from any disposing planes of the optical units 21 and 23 of the 1st and 2nd light sources. Since the optical units 21 and 23 are formed integrally with a semiconductor laser for emitting laser light 24 for reproducing a disk and a diffraction grating for guiding reflected light, adjustment of an optical axis, etc., can be performed in each unit. Moreover, by providing the volume 30 and the volume 31 close to each other, an operating distance of a jig in their adjusting work can be shortened.

25. 发明专利

JPH08263945A OPTICAL DISK DEVICE 失效
公开(公告)号：JPH08263945A
公开(公告)日：1996-10-11
申请号：JP9185595
申请日：1995-03-23
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HARUGUCHI TAKASHI , OWAKI HIROHIKO , TERAJIMA YUJI
IPC分类号： G11B21/02 , G11B19/20 , G11B25/04
摘要： PURPOSE: To reduce energy consumption by constituting a compact spindle motor with reduced thickness and high torque. CONSTITUTION: The optical disk device has the spindle motor having plural rotational driving parts coupled with a turntable 18 for rotating a disk 8 and moreover a carriage base 4 provided with an optical pickup to scan the disk 8 between its inner and outer circumferential parts. In this optical disk device, the most separated rotational driving part from the turntable 18 is disposed downward from a position of the carriage base 4 situated in the innermost circumferential part of the disk 8.

26. 发明专利

JPH0737262A OPTICAL DISK DEVICE 失效
公开(公告)号：JPH0737262A
公开(公告)日：1995-02-07
申请号：JP17918993
申请日：1993-07-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TERAJIMA YUJI , OWAKI HIROHIKO , SOEEDA YOSHINOBU , HARUGUCHI TAKASHI
IPC分类号： G11B7/085 , G11B7/09
摘要： PURPOSE:To make an actuator high performance and to make the optical disk device miniature and low cost reducing the number of parts. CONSTITUTION:Optical parts such as a laser unit 20 and an objective lens 22, etc., are integrally constituted in a bobbin 21, and a focus coil 28 and a tracking coil 29 are provided in the bobbin 21, and then a suspension spring 32 is provided on a main shaft slider 30 and a guide slider 31, supported by guide shafts 25, so as to elastically support the bobbin 21 in the focusing direction. The focus coil 28 and the tracking coil 29 are positioned with their electromagnetic operating sides in the same plane in a single magnetic circuit constituted of actuator magnets 26, the guide shafts 25 and back yokes 27, and focus drive, tracking drive and feed drive are performed.

27. 发明专利

JPH06195898A OPTICAL DISK DEVICE 失效
公开(公告)号：JPH06195898A
公开(公告)日：1994-07-15
申请号：JP34593992
申请日：1992-12-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SOEEDA YOSHINOBU , MATSUBA HIROYUKI , HARUGUCHI TAKASHI
IPC分类号： G11B7/085 , G11B21/02
摘要： PURPOSE:To provide a thin optical disk device by means and thin slide feeding mechanism in the optical disk device for writing/reading information. CONSTITUTION:The outer races of bearings 21-25 are fixed on a carriage 1 and the bearing shafts 31-35 of the bearings 21-25 are abutted on guide shafts 41, 42. Consequently, since the outer race of the bearing which occupies a large proportion in the height of a slide feeding mechanism is altered to the much smaller bearing shaft, the height of the slide feeding mechanism is made as lower as possible and the optical disk device itself is made thin.

28. 发明专利

JPH05250696A 失效
公开(公告)号：JPH05250696A
公开(公告)日：1993-09-28
申请号：JP4928392
申请日：1992-03-06
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HARUGUCHI TAKASHI
IPC分类号： G11B7/085 , G11B7/09
摘要： PURPOSE:To provide the actuator light in weight, with a high natural frequency and high speed followup ability in the rotational actuator for an optical pickup utilized in a magneto-optical disk, etc. CONSTITUTION:The actuator provides a tracking coil 23 arranged in a magnetic circuit and fixed on the holding cylinder 1 for an objective lens, a base plate 4 of a device driven for focusing by utilizing a magnetic attracting force and focusing coils 26 and 27 fixed on an axial base plate 28. Consequently, the holding cylinder 1 for the objective lens is miniaturized and the actuator light in weight, with high rigidity, a high natural frequency and high speed followup ability is realized.

29. 发明专利

JPH0444871A PRINTER 失效
公开(公告)号：JPH0444871A
公开(公告)日：1992-02-14
申请号：JP15190690
申请日：1990-06-11
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OTSUBO KAZUMI , HORINOUCHI SHOGO , MIYAZONO YUTAKA , TERAJIMA YUJI , HARUGUCHI TAKASHI
IPC分类号： B41J11/48 , B41J15/04 , B41J29/08
摘要： PURPOSE:To prevent the leakage of a printing sound from the right and left sides of a paper feed path to the external side when cutforms and continuous forms are both used, by forming ribs on the right and left sides of the paper abutting part of a paper stand, the ribs being overlapped with side plates for a soundproof cover in the case where the side plates for the soundproof cover are brought into contact with the right and left sides of the paper abutting part of the paper stand. CONSTITUTION:On the right and left sides of the paper abutting part 4a of a paper stand 4 are formed ribs 4b which overlap with side plates 3a in the case where the side plates 3a are brought into contact with the right and left sides of the paper abutting part 4a, and guide grooves 4c are formed at positions where the ribs 4b are opposed to the side plates 3a. Since no gap is made between each of the right and left sides of the paper abutting part 4a and each of the side plates 3a in the case where the paper stand 4 is set horizontally in order to use continuous forms, printing sounds do not leak from the right and left sides of a paper feed path to the external side. Since the side plates 3a and the ribs 4b are overlapped with one another in the case where the paper stand 4 is engaged at a position where it is rotated at angle THETA in order to use cutforms, the printing sounds do not leak from the right and left sides of the paper feed path to the external side.

30. 发明专利

JP2005071573A Laser module, optical pickup device and optical disk device 审中-公开
标题翻译：激光模块，光学拾取器件和光盘设备
公开(公告)号：JP2005071573A
公开(公告)日：2005-03-17
申请号：JP2004219755
申请日：2004-07-28
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： HARUGUCHI TAKASHI , MUTO JUNICHI , URAGAMI SUSUMU
IPC分类号： G11B7/08 , G11B7/12 , G11B7/125 , G11B7/135
摘要： PROBLEM TO BE SOLVED: To provide a laser module in which a position and a posture of a laser light source can be adjusted even in a narrow space, light intensity required for recording and reproducing information is secured and influence is hardly caused by a fluctuation in use temperature and to provide an optical pickup device and an optical disk device. SOLUTION: The laser light source 52 is provided with a laser light source box lens adjustment member 55 and a laser light source shift member 56 so that a lead 51 passes through. An FPC 57 is soldered to the lead 51 so as to be fixed. The laser light source 52 and the laser light source camera movement adjustment member 55 are depressed by a depression spring 53. Thus, they are fixed between a pressure plate 54 and the laser light source shift member 56. The laser light source camera movement adjustment member 55 has a spherical surface with a light emitting point of the laser light source 52 as a center and it has a function of adjusting an inclination of the laser light source 52 with respect to an axial direction by turning the member with the light emitting point of the laser light source 52 as the center. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供即使在狭窄的空间中也可以调节激光源的位置和姿势的激光模块，确保记录和再现信息所需的光强度，并且几乎不会引起影响使用温度波动并提供光拾取装置和光盘装置。
解决方案：激光光源52设置有激光光源盒透镜调节部件55和激光光源移动部件56，使得引线51通过。将FPC 57焊接到引线51以固定。激光光源52和激光光源摄像机运动调节部件55被凹陷弹簧53压下。因此，它们固定在压板54和激光光源移动部件56之间。激光光源照相机移动调节部件 55具有以激光光源52的发光点为中心的球面，其具有通过以下述方式转动激光光源52的轴向方向的倾斜的功能：以激光光源52为中心。版权所有（C）2005，JPO＆NCIPI

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