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12 条记录 (耗时 0.012 秒)

    Optical pickup
    3.
    发明公开
    Optical pickup 有权
    Optischer Abtaster

    公开(公告)号：EP2058808A1

    公开(公告)日：2009-05-13

    申请号：EP08019369.1

    申请日：2008-11-05

    申请人： Funai Electric Co., Ltd.

    发明人： Sogawa, Teruaki ,  Takahashi, Masanori

    IPC分类号： G11B7/125 ,  G11B7/13

    CPC分类号： G11B7/127 ,  G11B7/1263 ,  G11B7/13

    摘要： An optical pickup includes a semiconductor laser (201), a beam splitter (203), a collimating lens (206), an objective lens (207), an aperture (210) and a front monitor (205). The beam splitter splits a light beam emitted by the semiconductor laser into transmitted light and reflected light. The front monitor detects luminous energy of the transmitted light. The front monitor is disposed near an optical axis of the transmitted light so that the following is satisfied: 1 ≤ (S x L) / (s x f) ≤ 6.8. S is an area of an entrance pupil of the objective lens, f is an optical distance from an emission portion of the semiconductor laser to the collimating lens, s is an effective receiving area of the front monitor, and L is an optical distance from the emission portion of the semiconductor laser to the front monitor.

    摘要翻译： 光拾取器包括半导体激光器（201），分束器（203），准直透镜（206），物镜（207），孔（210）和前监视器（205）。 分束器将由半导体激光器发射的光束分成透射光和反射光。 前置显示器检测透射光的光能。 前端监视器靠近发射光的光轴，以满足以下要求：1‰¤（S×L）/（s x f）‰6.8。 S是物镜的入射光瞳的面积，f是从半导体激光器的发射部分到准直透镜的光学距离，s是前监视器的有效接收面积，L是距离 半导体激光器的发射部分到前监视器。

    Optical disc apparatus
    5.
    发明公开
    Optical disc apparatus 有权
    Optische Plattenvorrichtung

    公开(公告)号：EP1912213A2

    公开(公告)日：2008-04-16

    申请号：EP07019947.6

    申请日：2007-10-11

    申请人： Funai Electric Co., Ltd.

    发明人： Nakagawa, Ryotaro ,  Sogawa, Teruaki ,  Takahashi, Masanori

    IPC分类号： G11B7/09

    CPC分类号： G11B7/0945 ,  G11B7/0053 ,  G11B7/0908

    摘要： An optical disc apparatus comprises, an optical pickup, a signal extracting unit for reading address information and an RF signal from an optical disc based on signal read by the optical pickup, and a main controller for performing jitter control and focus control. At an initial reading of the optical disc, the main controller determines whether an address information detector succeeds in reading the address information. If not successful (NO in S3), the main controller offsets a defocus position to two points in plus and minus directions from a defocus position giving best jitter (S7), calculates an approximate curve of signal level characteristics with a peak value (S8), and adjusts and allows the defocus value to correspond to this peak value (S9). If the optical disc apparatus cannot read address information, depending on the defocus value, it increases the signal level of the address information by the defocus position adjustment.

    摘要翻译： 光盘装置包括：光拾取器，用于基于由光学拾取器读取的信号从光盘读取地址信息和RF信号的信号提取单元，以及用于执行抖动控制和聚焦控制的主控制器。 在初始读取光盘时，主控制器确定地址信息检测器是否成功读取地址信息。 如果不成功（S3中为“否”），则主控制器将散焦位置从提供最佳抖动的散焦位置（S7）的正方向和负向偏移到两个点，以峰值计算信号电平特性的近似曲线（S8） ，并调整并使散焦值对应于该峰值（S9）。 如果光盘装置不能读取地址信息，则根据散焦值，通过散焦位置调整来增加地址信息的信号电平。

    Single glass substrate test disk
    6.
    发明公开
    Single glass substrate test disk 有权
    Einzelglassubstrats Testplatte

    公开(公告)号：EP1688947A1

    公开(公告)日：2006-08-09

    申请号：EP06002162.3

    申请日：2006-02-02

    申请人： Funai Electric Co., Ltd.

    发明人： Sogawa, Teruaki ,  Yoshioka, Jyouji ,  Ukawa, Yoshiaki ,  Kasahara, Takashi ,  Inoue, Katsuichi

    IPC分类号： G11B20/18 ,  G11B20/12 ,  G11B7/24

    CPC分类号： G11B20/1816 ,  G11B7/00458 ,  G11B7/24082 ,  G11B7/24085

    摘要： With conventional test discs, changing them takes much time when a pickup is subjected to signal evaluation with respect to DVD- family discs (DVD-R and DVD-RW) and DVD+ family discs (DVD+R and DVD+RW), leading to low testing efficiency. A test disc of the invention has, formed on a single glass substrate, areas where there are provided regions where pits or no pits are formed and areas where there are provided regions where wobbles and land prepits are formed with varying parameters.

    摘要翻译： 对于常规测试光盘，当拾取器相对于DVD系列光盘（DVD-R和DVD-RW）和DVD +家庭光盘（DVD + R和DVD + RW）进行信号评估时，更换它们需要很多时间，导致 测试效率低。 本发明的测试盘在单个玻璃基板上形成有形成有凹坑或不形成凹坑的区域的区域，其中形成有具有变化参数的摆动和焊盘预凹坑的区域。

    Evaluation disc
    7.
    发明公开
    Evaluation disc 有权
    Bewertungsplatte

    公开(公告)号：EP1622150A2

    公开(公告)日：2006-02-01

    申请号：EP05016330.2

    申请日：2005-07-27

    申请人： Funai Electric Co., Ltd.

    发明人： Sogawa, Teruaki ,  Yoshioka, Joji ,  Inoue, Katsuichi

    IPC分类号： G11B27/00 ,  G11B7/00

    CPC分类号： G11B7/00745 ,  G11B27/36 ,  G11B2007/0006 ,  G11B2220/2545 ,  G11B2220/2562

    摘要： An evaluation disc for use in evaluating a pickup head of an optical disc device, including: an inner circular region: an intermediate circular region; and an outer circular region; wherein the outer circular region and the intermediate circular region are formed on the outer side of the inner circular region; the outer circular region is formed on the outer side of the intermediate circular region; each of the inner circular region, the intermediate circular region and the outer circular region being divided in to a CD evaluation region written with CD standard recording information and a DVD evaluation region written with DVD standard recording information.

    摘要翻译： 一种用于评估光盘装置的拾取头的评估盘，包括：内圆形区域：中间圆形区域; 和外圆区域; 其中所述外圆形区域和所述中间圆形区域形成在所述内圆形区域的外侧上; 外圆形区域形成在中间圆形区域的外侧上; 内部圆形区域，中间圆形区域和外部圆形区域中的每一个被划分为用CD标准记录信息写入的CD评估区域和用DVD标准记录信息写入的DVD评估区域。

    Light-source holder and optical pickup having same
    10.
    发明公开
    Light-source holder and optical pickup having same 有权
    Lichtquellenhalter und optischer Lesekopf diesen enthaltend

    公开(公告)号：EP2107563A1

    公开(公告)日：2009-10-07

    申请号：EP09004750.7

    申请日：2009-03-31

    申请人： Funai Electric Co., Ltd.

    发明人： Sasaoka, Hiromasa ,  Sogawa, Teruaki ,  Mori, Fumiaki

    IPC分类号： G11B7/22

    CPC分类号： G11B7/22 ,  G11B2007/0006

    摘要： A light-source holder used to hold a light source (11, 21) disposed in an optical pickup (1) comprises: a holder main body portion; a through hole (52) which penetrates the holder main body portion (51) and in which a light source (11, 21) is fitted; a first hold potion that holds a first light source (11) if the first light source (11) is fitted in the through hole (52) from a first side, one of first and second sides of the holder main body portion (51) which are opposite to each other with respect to the holder main body portion (51); and a second hold portion that holds a second light source (21) if the second light source (21) is fitted in the through hole (52) from a second side, one of the first and second sides of the holder main body portion (51) which are opposite to each other with respect to the holder main body portion.

    摘要翻译： 用于保持设置在光学拾取器（1）中的光源（11,21）的光源保持器包括：保持器主体部分; 穿过保持器主体部分（51）并安装光源（11,21）的通孔（52）; 如果第一光源（11）从保持器主体部分（51）的第一侧和第二侧中的一个的第一侧嵌合在通孔（52）中，则保持第一光源（11）的第一保持部分 它们相对于保持器主体部分（51）彼此相对; 以及第二保持部，其将所述第二光源（21）从所述保持器主体部的所述第一侧和第二侧的第二侧嵌合在所述贯通孔（52）中的方式保持第二光源（21） 51），其相对于保持器主体部分彼此相对。