公开(公告)号：KR20070098558A

公开(公告)日：2007-10-05

申请号：KR20070029124

申请日：2007-03-26

Applicant: SONY CORP

Inventor： SATO JIN ,  YAMADA TAKATOSHI ,  KAWAKITA SATOSHI ,  KANNO KYU ,  AIBA MOTOO

IPC: G11B7/135 ,  G02B5/18

CPC classification number: G11B7/13922 ,  G11B7/1353 ,  G11B7/22 ,  G11B2007/0006

Abstract: A diffraction element, an optical pickup and an optical disc apparatus are provided to improve optical property of small aberration and to reduce the aberration of the diffraction element by forming a second diffraction element without distortion. A diffraction element, an optical pickup and an optical disc apparatus comprise a first member, a second member and a third member. The first member is made of a transparent injection molded material, and has two optical surfaces. The second member is installed at one optical surface of the first member to form a first diffraction pattern on the surface and a first ultraviolet curable resin(100A) having a refraction index in a range of ±0.013 for the refraction index of the first member. The third member is mounted on the other optical surface of the first member to form a second diffraction element on the surface and a second ultraviolet curable resin(100B) having the refraction index in the range of ±0.013 for the refraction index of the first member.

Abstract translation: 提供衍射元件，光学拾取器和光盘装置以改善小像差的光学性质并且通过形成第二衍射元件而没有变形来减少衍射元件的像差。 衍射元件，光学拾取器和光盘装置包括第一构件，第二构件和第三构件。 第一构件由透明注塑材料制成，并具有两个光学表面。 第二构件安装在第一构件的一个光学表面上以在表面上形成第一衍射图案，并且对于第一构件的折射率，折射率在±0.013的范围内的第一紫外线可固化树脂（100A）。 第三构件安装在第一构件的另一光学表面上以在表面上形成第二衍射元件，并且第二构件的折射率的折射率在±0.013范围内的第二紫外线固化树脂（100B） 。

公开(公告)号：MY126199A

公开(公告)日：2006-09-29

申请号：MYPI9902954

申请日：1999-07-14

Applicant: SONY CORP

Inventor： UEDA HIROYUKI ,  SAITO SHINJI ,  KAWAKITA SATOSHI ,  SAKAKIBARA HIROYUKI

IPC: G02B1/04 ,  G02B5/18 ,  B29C35/08 ,  B29C43/18 ,  B29D11/00 ,  C03B11/08 ,  C03B11/14 ,  G02B27/00 ,  G11B7/135

Abstract: DISCLOSED ARE A LENS EFFICIENTLY MANUFACTURED INTO AN ACCURATE SHAPE AT A LOW COST, A MANUFACTURING METHOD THEREOF, AND AN OPTICAL PICKUP (10) USING THE LENS. THE LENS INCLUDES A GEOMETRICAL OPTICS PORTION (20) FOR CONVERGING LIGHT HAVING BEEN INCIDENT THEREON FROM ITS LIGHT INCOMING PLANE (20A), AND TWO DIFFRACTION OPTICS PORTIONS (21A,21B) PROVIDED ON THE LIGHT INCOMING PLANE (20A) AND A LIGHT OUTGOING PLANE (21B)OF THE GEOMETRICAL OPTICS PORTION (20), WHEREIN THE DIFFRACTION OPTICS PORTIONS (21A,21B) ARE MADE FROM A MATERIAL DIFFERENT FROM THAT OF THE GEOMETRICAL OPTICS PORTION (20).(FIG 4)

公开(公告)号：SG78375A1

公开(公告)日：2001-02-20

申请号：SG1999003380

申请日：1999-07-15

Applicant: SONY CORP

Inventor： UEDA HIROYUKI ,  SAITO SHINJI ,  KAWAKITA SATOSHI ,  SAKAKIBARA HIROYUKI

IPC: G02B1/04 ,  B29C35/08 ,  B29C43/18 ,  B29D11/00 ,  C03B11/08 ,  C03B11/14 ,  G02B5/18 ,  G02B27/00 ,  G11B7/135 ,  G02B3/08

Abstract: Disclosed are a lens efficiently manufactured into an accurate shape at a low cost, a manufacturing method thereof, and an optical pickup using the lens. The lens includes a geometrical optics portion for converging light having been incident thereon from its light incoming plane, and two diffraction optics portions provided on the light incoming plane and a light outgoing plane of the geometrical optics portion, wherein the diffraction optics portions are made from a material different from that of the geometrical optics portion.

公开(公告)号：JP2002347037A

公开(公告)日：2002-12-04

申请号：JP2001156238

申请日：2001-05-25

Applicant: SONY CORP

Inventor： KAWAKITA SATOSHI

IPC: G01B21/20 ,  B29C33/38 ,  B29L11/00 ,  G01M11/00 ,  G02B3/00

Abstract: PROBLEM TO BE SOLVED: To mass-produce a molded product of high accuracy. SOLUTION: A temporary mold for manufacturing a standard mold is manufactured and a temporary object lens is actually molded using this temporary mold to be optically evaluated. When the optical evaluation of the temporary object lens is good, the shape evaluation and parameter setting of the standard mold are performed using an aspheric surface prescribing formula (1) due to a first measuring instrument α and this parameter value is used to determine a standard mold programming formula (2) for the surface shape of the standard mold. Further, the shape evaluation of the standard mold and the setting of the parameter value of an evaluation formula due to a second measuring instrument β are performed to determine a temporary mass-production mold evaluation formula (3). Then, the temporary mass-production mold is manufactured by inputting the parameter value of the formula (2) to a processor and the shape shift thereof is evaluated. When the evaluation value is within an allowable range, the temporary mass-production mold is set as a mass-production mold and this mold is used in the mass-production of the object lens.

公开(公告)号：JPH10259028A

公开(公告)日：1998-09-29

申请号：JP31260796

申请日：1996-11-11

Applicant: SONY CORP

Inventor： UEDA HIROYUKI ,  KUBO MINORU ,  KAWAKITA SATOSHI ,  FUKAZAWA YOSHIO

IPC: G02B3/00 ,  C03B11/00 ,  C03B11/08

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus for producing a press-molded glass product without the need of any post-process, i.e., centering process and grinding process and for surely withdrawing the resultant product from the molding die. SOLUTION: This apparatus comprises: a fixed molding die 3 provided with a stationary side die 13 to be butted on a movable molding die and an ejector pin 19 to be inserted into an inserting hole 18 and supported slidably by the stationary die 13; the inserting hole 18 opened at a butting surface (hereinafter, referred to parting surface) 13a butted against the movable molding die; a cavity defined by the movable molding die, the stationary die 13 and the end surface of the ejector pin 19 positioned at the side of the movable molding die; a rod member 26 disposed at the tip end of the ejector pin 19 opposite to the other tip end thereof at the side of the movable molding die; and a movable removing means 28 for removing a glass molded product from the fixed molding die 3 when the movable molding die moves to make both the dies open. Thus, the withdrawing means pushes the solidified molded glass product out of the parting surface of the stationary die toward the movable molding die and withdraws the product from the stationary die.

公开(公告)号：JPH10162426A

公开(公告)日：1998-06-19

申请号：JP32046496

申请日：1996-11-29

Applicant: SONY CORP

Inventor： FUKAZAWA YOSHIO ,  KAWAKITA SATOSHI ,  KUBO MINORU ,  UEDA HIROYUKI

IPC: G11B7/22

Abstract: PROBLEM TO BE SOLVED: To avoid a fault apt to be caused in an adhering process by integrally constituting a lens and a holding body made of synthetic resin material which holds the peripheral part of the lens in a lens bobbin to dispense with the adhering process adhering the lens with respect to the holding body. SOLUTION: A lens 1 and a holding body 2 made of synthetic resin material which holds the peripheral part of the lens 1 are integrally constituted by an insert molding. Material of the lens 1 is made to be material whose heat resistance temp. is higher than the molding temp. of the synthetic resin material making the holding body 2. Then, it is not needed for the lens 1 to provide a part for exclusively positing and holding the lens 1 like a flange part protruded at the peripheral part. Here, a through hole 3 for allowing a luminous flux to be made incident on the lens 1 to pass is formed in the holding body 2. Moreover, the lens 1 is held by the holding body 2 in a state where the outer peripheral part of the lens 1 is entered the inner wall part of the through hole 3 a little and the through hole 3 is closed.

公开(公告)号：JP2008140473A

公开(公告)日：2008-06-19

申请号：JP2006325695

申请日：2006-12-01

Applicant: Sony Corp ,  ソニー株式会社

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

IPC: G11B7/135 ,  G02B5/18

Abstract: PROBLEM TO BE SOLVED: To provide a diffraction element capable of enhancing quality of a reproduced signal. SOLUTION: The diffraction element is provided with a diffraction pattern PTc for a CD as a first diffraction pattern provided from a part in the vicinity of a center on one optical surface of the diffraction element 20 to a part in the vicinity of a luminous flux diameter of a light beam Lc for a CD to be a first light beam, diffracting the light beam Lc for the CD and not diffracting but transmitting a light beam Lb for a BD to be a second light beam having a luminous flux diameter larger than that of the light beam Lc for the CD and a wavelength different from that of the light beam Lc for the CD and a diffraction pattern PTb for optical intensity correction for correcting beam intensity of the light beam Lb for the BD provided on the outer side of the part in the vicinity of the luminous flux diameter of the light beam Lc for the CD on the one optical surface. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供能够提高再现信号质量的衍射元件。 解决方案：衍射元件设置有用于CD的衍射图案PTc作为从衍射元件20的一个光学表面上的中心附近的一部分提供到第一衍射图案的附近的部分 用于CD的光束Lc的光通量直径为第一光束，衍射CD的光束Lc并且不衍射但是将BD的光束Lb传输成具有光束直径较大的第二光束 比用于CD的光束Lc和与CD的光束Lc的波长不同的波长和用于校正用于校正用于设置在外侧的BD的光束Lb的光束强度的光学强度校正的衍射图案PTb 在一个光学表面上的CD的光束Lc的光束直径附近的部分。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008128736A

公开(公告)日：2008-06-05

申请号：JP2006311987

申请日：2006-11-17

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YAMADA TAKATOSHI ,  KAWAKITA SATOSHI

IPC: G01R13/20

Abstract: PROBLEM TO BE SOLVED: To overcome the problem wherein analysis of tendency in the measured physical quantity and detail reading of the current physical quantity cannot be implemented simultaneously, since adjacent waveforms displayed on a display are mixed.
SOLUTION: A waveform display apparatus 10 is provided with a measurement section 4 for measuring the physical quantity of a to be measured object; a storage section for storing time-series data as the physical quantity of the to-be-measured object, measured by the measurement section 4 at each predetermined measurement time; a calculation/processing section for reading the time-series data stored in the storage section, and calculating the ratio at each predetermined measurement time with respect to all measurement times of the time-series data; and a display section 2 for displaying a graph of the physical quantity of the to be measured object measured at each predetermined measurement time, by changing the display width at each predetermined measurement time, based on the ratio at each predetermined measurement time calculated by the calculation/processing section. The apparatus carries out a compressed displaying.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题为了克服当前物理量的测量物理倾向和细节读数的分析不能同时实现的问题，因为显示在显示器上的相邻波形是混合的。 解决方案：波形显示装置10设置有用于测量待测物体的物理量的测量部分4; 存储部分，用于存储在每个预定测量时间由测量部分4测量的作为被测量物体的物理量的时间序列数据; 计算/处理部分，用于读取存储在存储部分中的时间序列数据，并且计算关于所述时间序列数据的所有测量次数的每个预定测量时间的比率; 以及显示部分2，用于通过根据通过计算计算的每个预定测量时间的比例改变每个预定测量时间的显示宽度来显示在每个预定测量时间测量的被测量物体的物理量的曲线图 /处理部分。 该装置执行压缩显示。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007293951A

公开(公告)日：2007-11-08

申请号：JP2006118363

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 ,  G02B5/18 ,  G02B13/00 ,  G11B7/22

Abstract: PROBLEM TO BE SOLVED: To provide a diffraction element having high durability, an objective lens unit using the diffraction element concerned, and an optical pickup and an optical disk drive. SOLUTION: On the diffraction element 20, an upper layer separation prevention pattern PPa is formed so that a base layer 20C and an enclosure layer 20D may fit to an outside optics area EO through which an optical beam does not pass. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供具有高耐久性的衍射元件，使用所涉及的衍射元件的物镜单元，以及光学拾取器和光盘驱动器。 解决方案：在衍射元件20上，形成上层分离防止图案PPa，使得基底层20C和外壳层20D可以配合到光束不通过的外部光学区域EO。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007292509A

公开(公告)日：2007-11-08

申请号：JP2006118366

申请日：2006-04-21

Applicant: Sony Corp ,  ソニー株式会社

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

IPC: G01N21/41

Abstract: PROBLEM TO BE SOLVED: To more accurately measure the refractive index of a measuring target that is reduced in thickness, in a non-destructive manner. SOLUTION: A first actually measured diffraction efficiency ys1(r) of a base layer 20C is measured in a first stage, and after a lattice shape d(x), when the waveform of a first theoretical diffraction efficiency yt1(r) that best coincides with the first actually measured diffraction efficiency ys1(r), is identified as an actually measured shape ds(x); the second actually measured diffraction efficiency ys2(r) of a diffraction element 20CD, wherein a cover layer 20D is jointed to the base layer 20C, is measured in a second stage; and the refractive index n2(r), when the waveform of second theoretical diffraction efficiency yt2(r), calculated by using an actually measured lattice shape ds(x) that best coincides with the second actually measured diffraction efficiency ys2(r), is identified as an actually measured refractive index n2s(r). COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：以非破坏性的方式更准确地测量厚度减小的测量对象的折射率。 解决方案：在第一阶段中测量基底层20C的第一实际测量的衍射效率ys1（r），并且在格子形状d（x）之​​后，当第一理论衍射效率yt1（r） 与第一实际测量的衍射效率ys1（r）最佳相符，被确定为实际测量的形状ds（x）; 在第二阶段中测量其中覆盖层20D与基底层20C连接的衍射元件20CD的第二实际测量的衍射效率ys2（r） 和折射率n2（r），当使用与第二实际测得的衍射效率ys2（r）最好一致的实际测量的晶格形状ds（x）计算的第二理论衍射效率yt2（r）的波形为 确定为实际测量的折射率n2s（r）。 版权所有（C）2008，JPO＆INPIT