公开(公告)号：JP2007293952A

公开(公告)日：2007-11-08

申请号：JP2006118364

申请日：2006-04-21

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KAWAKITA SATOSHI ,  AIBA MOTOO ,  SUGANO TAKASHI ,  SATO HITOSHI ,  YAMADA TAKATOSHI

IPC: G11B7/135

Abstract: PROBLEM TO BE SOLVED: To achieve an optical pickup and an optical disk drive which can present successful property to a plurality of kinds of optical disks. SOLUTION: A stray light reflected with the diffraction element 20 is diverted from the optical axis CL by providing a diffraction component 20 with a net angle θ to an optical axis CL and an adverse effect by the stray light are prevented, and an abberation in optical beams of first and second wavelengths generated by the inclined diffraction element 20 are compensated by shifting and arranging the first diffraction pattern PTc and the second diffraction pattern PTd from the optical axis CL. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：实现可以向多种光盘呈现成功性的光学拾取器和光盘驱动器。 解决方案：通过提供具有与光轴CL的净角度θ的衍射分量20并且防止杂散光的不利影响，由衍射元件20反射的杂散光从光轴CL转向，并且 通过从光轴CL移位和布置第一衍射图案PTc和第二衍射图案PTd来补偿由倾斜衍射元件20产生的第一和第二波长的光束的偏移。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007292885A

公开(公告)日：2007-11-08

申请号：JP2006118369

申请日：2006-04-21

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YAMADA TAKATOSHI ,  KAWAKITA SATOSHI ,  SATO HITOSHI ,  SUGANO TAKASHI ,  AIBA MOTOO

IPC: G02B5/18 ,  G02B1/04 ,  G11B7/135

Abstract: PROBLEM TO BE SOLVED: To obtain a diffractive element exhibiting preferable characteristics. SOLUTION: The diffractive element is produced by forming a cover layer 20D and a diffraction pattern layer 20E on an upper face 20Ca and a lower face 20c, respectively, of a base layer 20C comprising an injection molded product. The diffraction pattern layer 20E and the cover layer 20D are successively formed by a UV replica method, in the order of higher glass transition point Tg of the UV-curing resin to be used. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：获得具有优选特性的衍射元件。 解决方案：通过在包括注射成型产品的基底层20C的上表面20Ca和下表面20c上形成覆盖层20D和衍射图案层20E来产生衍射元件。 衍射图案层20E和覆盖层20D依次使用紫外线固化树脂的玻璃化转变温度Tg高的UV复制方法形成。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007273013A

公开(公告)日：2007-10-18

申请号：JP2006098707

申请日：2006-03-31

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YAMADA TAKATOSHI ,  KAWAKITA SATOSHI ,  SATO HITOSHI ,  SUGANO TAKASHI ,  AIBA MOTOO

IPC: G11B7/135 ,  G02B5/18

CPC classification number: G11B7/1374 ,  G02B5/1866 ,  G11B7/1275 ,  G11B7/1353 ,  G11B2007/0006

Abstract: PROBLEM TO BE SOLVED: To easily design a diffraction element having satisfactory characteristics. SOLUTION: When a diffraction grating DG wherein a wavelength λ not to be diffracted and a wavelength λ to be diffracted are respectively determined as design targets is designed, values of refractive indices n of materials M1 and M2 to be candidates in each wavelength λ are substituted for a left side of formula (16), a right side of formula (16) is made to be a ratio of simple integers by satisfying formula (11) and the materials M1 and M2 to be the candidates are discriminated to be suitable as materials which constitute the diffraction grating DG when formula (17) is satisfied. Thus, the materials M1 and M2 capable of forming the diffraction grating DG as to be specified designed can be easily selected. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了容易地设计具有令人满意的特性的衍射元件。 解决方案：设定将不衍射波长λ和待衍射波长λ的衍射光栅DG分别设计为设计目标时，将材料M1和M2的折射率n的值作为每个波长的候选值 λ代入式（16）的左侧，通过满足公式（11）将公式（16）的右侧作为简单整数的比例，并将作为候选的材料M1和M2区分为 适合作为满足式（17）时构成衍射光栅DG的材料。 因此，可以容易地选择能够形成要设计的衍射光栅DG的材料M1和M2。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007273012A

公开(公告)日：2007-10-18

申请号：JP2006098706

申请日：2006-03-31

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KAWAKITA SATOSHI ,  AIBA MOTOO ,  SUGANO TAKASHI ,  SATO HITOSHI ,  YAMADA TAKATOSHI

IPC: G11B7/135 ,  G02B5/18

CPC classification number: G11B7/1374 ,  G02B5/1895 ,  G11B7/1353 ,  G11B2007/0006

Abstract: PROBLEM TO BE SOLVED: To hardly change a diffraction efficiency EF regardless of usage temperature. SOLUTION: In the diffraction element, which is composed of a base layer 20C having a diffraction pattern PTc for a CD and a cover layer 20D covering the base layer 20C, a cover material RA and a base material RB are selected so that a change amount of the refractive index nA of the cover material RA and a change amount of the refractive index nB of the base material RB when temperature is changed from -40[°C] to 75[°C] are nearly equal to each other. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：不管使用温度如何，几乎不改变衍射效率EF。 解决方案：在由具有CD的衍射图案PTc和覆盖基底层20C的覆盖层20D的基底层20C构成的衍射元件中，选择覆盖材料RA和基材RB，使得 覆盖材料RA的折射率nA的变化量和当温度从-40 [℃]变化到75℃时基材RB的折射率nB的变化量几乎相等 。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2004334129A

公开(公告)日：2004-11-25

申请号：JP2003133559

申请日：2003-05-12

Applicant: Sony Corp ,  ソニー株式会社

Inventor： AOSHIMA MASAYOSHI ,  SUGANO TAKASHI

IPC: G02B13/00 ,  G02B27/20 ,  G02B27/30 ,  G02F1/37 ,  H01S3/094 ,  H01S3/109

CPC classification number: G02B27/20

Abstract: PROBLEM TO BE SOLVED: To provide a lens which does not increse the manufacturing cost of a lens having a plurality of functions while eccentricity, an optical axis shift, and a deviation in surface interval of lenses are reduced without positioning respective lenses, and to provide a light irradiation unit and a laser pointer which apply the lens. SOLUTION: This lens is constituted so that a light diameter expanding means of expanding the diameter of incident light and a light collimating means of receiving the light whose diameter is expanded by the light diameter expanding means and outputs nearly parallel light are formed as one united body. Consequently, eccentricity, an optical axis deviation, and an error in lens surface interval due to a position shift between lenses can be suppressed as compared with a lens constituted by individually forming a lens as a light diameter expanding means and a lens as a light collimating means and uniting those lenses. COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2003006807A

公开(公告)日：2003-01-10

申请号：JP2001187204

申请日：2001-06-20

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SUGANO TAKASHI ,  SUGIZAKI YASUO

IPC: G11B5/008 ,  G11B5/10 ,  G11B5/187 ,  G11B5/48 ,  G11B15/60 ,  G11B15/62

CPC classification number: G11B15/62 ,  G11B5/00821 ,  G11B5/10 ,  G11B5/1871 ,  G11B5/4893 ,  G11B15/60

Abstract: PROBLEM TO BE SOLVED: To attain a high recording density ensuring good contact condition between a magnetic tape and a magnetic head. SOLUTION: This device comprises a magnetic head 11 to record and reproduce a signal onto a magnetic tape 12 which runs, and a pair of guide means 3, 4 provided in the depth direction and at both sides of the magnetic head 11. The magnetic head 11 records and reproduces a signal in the pressurized state to the magnetic tape 12 being guided by the guide means 3, 4 to run, and a sliding surface 11a of the magnetic head 11 with the magnetic tape 12 is formed into a flat surface.

Abstract translation: 要解决的问题：为了获得高的记录密度，确保磁带和磁头之间良好的接触状态。 解决方案：该装置包括磁头11，用于将信号记录到磁带12上，该磁头运行;以及一对引导装置3,4，其设置在磁头11的深度方向和两侧。磁头 11记录并将加压状态的信号再现到由引导装置3,4引导的磁带12运行，并且磁头11与磁带12的滑动表面11a形成为平坦表面。

公开(公告)号：JPH09180124A

公开(公告)日：1997-07-11

申请号：JP33364995

申请日：1995-12-21

Applicant: SONY CORP

Inventor： SUGANO TAKASHI ,  OGATA SEIICHI ,  SAITO TADASHI

IPC: B24B21/00 ,  G11B5/187

Abstract: PROBLEM TO BE SOLVED: To precisely form a curvature (round surface) of a tape slide surface of a magnetic head. SOLUTION: A tip core 7 is arranged while projecting the tape slide surface 1 of the tip core 7 from the circumference of a rotary member 3 having a prescribed diameter, and a lapping means 2 arranged so as to abut on the tape slide surface 1 of the tip core 7 is provided. Then, by protruding the tape slide surface 1 more than a reference value decided by the diameter of the rotary member 3, the size of the tip core 7 and a prescribed curvature, and lapping it, the tape slide surface of the prescribed curvature is obtained.

公开(公告)号：JPH0887713A

公开(公告)日：1996-04-02

申请号：JP22300394

申请日：1994-09-19

Applicant: SONY CORP

Inventor： OGATA SEIICHI ,  WATANABE TOSHINOBU ,  SUGANO TAKASHI ,  TAKAHASHI SHINJI

IPC: G11B5/127 ,  G11B5/23

Abstract: PURPOSE: To obtain a method which can form a high-precision magnetic gap and thereby manufacture a magnetic head having high reproductive characteristics without producing distortions and residual strain near the magnetic gap. CONSTITUTION: This method is to butt and integrally join a pair of half magnetic cores 1, 2 and form a magnetic gap g1 between the butted surfaces. In this case, a spacer 35 is interposed between the butted surfaces 32a.32a of the protruded sections 32.32 removed by cutting the tip to mitigate the pressure impressed on the opposing surfaces 29 of the magnetic gap g1.

公开(公告)号：JPH0863726A

公开(公告)日：1996-03-08

申请号：JP20323794

申请日：1994-08-29

Applicant: SONY CORP

Inventor： OGATA SEIICHI ,  SUGANO TAKASHI ,  TAKAHASHI HISAMI ,  SATO ATSUSHI

IPC: G11B5/53

Abstract: PURPOSE: To prevent an S/N from deteriorating due to generated noise by providing an electrically conductive material in a range of connecting a magnetic head joining part of a head base with a fitting hole and covering them. CONSTITUTION: The magnetic head device 1 is equipped with a magnetic head 4 consisting of a combination of one pair of magnetic core halves 4A and 4B and coils wound around these magnetic core halves 4A and 4B. Moreover, the device is equipped with the head base 3 consisting of a ceramic material, the magnetic head joining part 3A formed in one side end part to be joined and fixed with the magnetic head 4 and the fitting hole 5 bored to be fitted to a fitting member. In addition, the head base 3 is provided with a grounding part 6 to join up the magnetic joining part 3A and the fitting member. The grounding part 6 is formed with the electrically conductive material in the range of connecting the magnetic head joining part 3A with the fitting hole 5 and convering them. By 4 suppressing a static charge generated on the magnetic head 4 in the magnetic head device 1, the S/N can thus be prevented from deteriorating due to noise generated by the static charge at the time of recording and reproducing.

公开(公告)号：JPH07240016A

公开(公告)日：1995-09-12

申请号：JP5123294

申请日：1994-02-24

Applicant: SONY CORP

Inventor： SUGANO TAKASHI ,  TAKAHASHI HISAMI ,  WATANABE TOSHINOBU ,  TAKAHASHI SHINJI ,  SAITO TADASHI ,  OGATA SEIICHI ,  IKEDA YOSHITO ,  NIWA KATSUYA

IPC: G11B5/53 ,  G11B5/56

Abstract: PURPOSE:To lessen the inclination of a magnetic head chip and a sticking surface by adjusting the height of a front end at the time of adhering the magnetic head chip by an adhesive by bringing the magnetic head chip into contact with the sticking surface of a base for fixing the chip with the ridge of the rear surface as a fulcrum. CONSTITUTION:The magnetic head chip 4 on the preceding side is stuck to the sticking surface M of the base 3 for fixing the chip by using the instant set adhesive 7 having a shrinkage rate of some ten %. The UV curing type adhesive 11 of the shrinkage rate of some ten % is thereafter applied on the rear surface of the magnetic head chip 8 on the succeeding side and the ridge 12 of the chip 8 is brought into contact with the sticking surface M. The front end of the chip 8 with the ridge 12 as a fulcrum is irradiated with the UV rays to cure the adhesive 11 after a level difference between the chips 4 and 8 is adjusted in a vertical direction of an arrow a while the difference in level is monitored. The double azimuth head 10 constituted in such a manner is worked with the ridge 12 with high accuracy and the inclination with the sticking surface M of the chip 8 is lessened.