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16 条记录 (耗时 0.025 秒)

    Light guide plate and surface light source using the light guide plate
    11.
    发明授权
    Light guide plate and surface light source using the light guide plate 失效
    导光板和表面光源使用导光板

    公开(公告)号：US5999685A

    公开(公告)日：1999-12-07

    申请号：US921606

    申请日：1997-09-02

    申请人： Youichiro Goto ,  Michiaki Sato ,  Yasuko Teragaki ,  Katsutoshi Hibino ,  Kenji Torazawa ,  Masahiro Higuchi ,  Takanari Kusafuka

    发明人： Youichiro Goto ,  Michiaki Sato ,  Yasuko Teragaki ,  Katsutoshi Hibino ,  Kenji Torazawa ,  Masahiro Higuchi ,  Takanari Kusafuka

    IPC分类号： F21V8/00

    CPC分类号： G02B6/0038 ,  Y10S385/901

    摘要： A light guide plate is provided including a first lens portion comprising a plurality of recessed or projected lenticular unit lenses formed of the same resin as that of the light guide plate on a light emission surface. The plurality of lenticular unit lenses in the first lens portion are triangular prism portions whose respective vertexes have an angle of 125.degree. to 165.degree. and are so arranged that their respective ridge lines are nearly parallel to each other. Such construction makes it possible to set the number of lenticular lens sheets used to one or to further eliminate the necessity of the lenticular lens sheets, so that the cost of parts and the fabrication cost of the light guide plate can be reduced. A second lens portion may be provided on a light reflective surface opposite to the light emission surface on which the first lens portion is disposed, the second lens portion including a plurality of recessed or projected lenticular unit lenses formed of the same resin as that of the light guide plate. Alternatively, a light guide plate is provided having a plurality of grooves with approximately equal groove widths formed on a surface opposite to a light emission surface, the grooves being arranged substantially parallel to each other and the spacing between the grooves narrowing as the distance from the light incident surface increases, with the spacing from the far end of one of the plurality of grooves proximate to the light incident surface to the near end of a groove adjacent thereto farther away from the light incident surface being 5 to 15 times the groove width.

    摘要翻译： 提供了一种导光板，包括：第一透镜部分，包括由与发光表面上的导光板相同的树脂形成的多个凹入或突出的双凸透镜单元透镜。 第一透镜部分中的多个透镜单元透镜是三角形棱镜部分，其各自的顶点具有125°至165°的角度，并且被布置成使得它们各自的脊线彼此几乎平行。 这样的结构使得可以将使用的双凸透镜片的数量设置为一个，或者进一步消除双凸透镜片的必要性，从而可以减少导光板的部件成本和制造成本。 第二透镜部分可以设置在与其上设置有第一透镜部分的光发射表面相对的光反射表面上，第二透镜部分包括由与第一透镜部分相同的树脂形成的多个凹入或突出的双凸透镜单元透镜 导光板。 或者，导光板设置有多个槽，其在与发光表面相对的表面上形成有大致相等的槽宽，所述槽基本上彼此平行地布置，并且槽之间的间距随着距离 光入射面增加，与多个凹槽中的一个接近光入射表面的远端的距离相对于与光入射表面相邻的凹槽的近端的距离为凹槽宽度的5至15倍。

    Information recording/reproducing apparatus to record/reproduce information on a recording medium recorded with an address mark
    14.
    发明授权
    Information recording/reproducing apparatus to record/reproduce information on a recording medium recorded with an address mark 有权
    用于在记录有地址标记的记录介质上记录/再现信息的信息记录/再现装置

    公开(公告)号：US06400653B1

    公开(公告)日：2002-06-04

    申请号：US09355831

    申请日：1999-08-05

    申请人： Kenji Torazawa ,  Kenji Asano ,  Satoshi Sumi ,  Yoshiharu Uchihara ,  Noboru Mamiya ,  Toshiaki Hioki

    发明人： Kenji Torazawa ,  Kenji Asano ,  Satoshi Sumi ,  Yoshiharu Uchihara ,  Noboru Mamiya ,  Toshiaki Hioki

    IPC分类号： G11B1100

    CPC分类号： G11B11/10584 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/00718 ,  G11B7/00745 ,  G11B11/10513 ,  G11B11/10515 ,  G11B11/10565 ,  G11B11/10578 ,  G11B11/10595 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/2525

    摘要： An magneto-optical disc recording/reproducing apparatus includes an optical head (36) to detect a wobble (46) and an address mark (81 to 84) in an magneto-optical disc (31) and output a wobble signal (WB1, WB2) and an address mark signal (AML, AMG), a PLL circuit (47) to generate a clock signal (CK) in response to wobble signal (WB1), an address mark synchronous signal generation circuit (46) to generate an address mark synchronous signal (AM) in response to address mark signal (AML, AMG), a synchronizing circuit (48) to synchronize clock signal (CK) with address mark synchronous signal (AM) and generate a synchronized clock signal (SCK), and a timing setting circuit (49) to generate a timing pulse signal (TG1) to control a magnetic head driving circuit (34) and a timing pulse signal (TG2) to control a laser driving circuit (35). The recording/reproducing apparatus can detect a address mark (81 to 84), record la data signal on magneto-optical disc (31) in synchronization with the detected address mark, and reproduce a data signal from magneto-optical disc (31) in synchronization with the detected address mark, so that the data signal can be surely recorded/reproduced.

    摘要翻译： 磁光盘记录/重放装置包括一个用于检测磁光盘（31）中的摆动（46）和地址标记（81至84）的光头（36），并输出摆动信号（WB1，WB2 ）和地址标记信号（AML，AMG），PLL电路（47），用于响应于摆动信号（WB1）产生时钟信号（CK），地址标记同步信号产生电路（46）产生地址标记 响应于地址标记信号（AML，AMG）的同步信号（AM），同步电路（48），用于将时钟信号（CK）与地址标记同步信号（AM）同步并产生同步时钟信号（SCK），以及 定时设定电路（49），生成用于控制磁头驱动电路（34）的定时脉冲信号（TG1）和定时脉冲信号（TG2），以控制激光驱动电路（35）。 记录/再现装置可以检测地址标记（81至84），与检测到的地址标记同步地在磁光盘（31）上记录数据信号，并且从磁光盘（31）再现数据信号 与检测到的地址标记进行同步，从而可以可靠地记录/再现数据信号。

    Optical disc manufacturing apparatus
    16.
    发明授权
    Optical disc manufacturing apparatus 失效
    光盘制造装置

    公开(公告)号：US5997276A

    公开(公告)日：1999-12-07

    申请号：US600878

    申请日：1996-02-13

    申请人： Kenji Torazawa ,  Takanari Kusafuka ,  Masahiro Higuchi

    发明人： Kenji Torazawa ,  Takanari Kusafuka ,  Masahiro Higuchi

    IPC分类号： B29C45/26 ,  B29C45/38

    CPC分类号： B29C45/263 ,  B29C45/38 ,  Y10S425/81

    摘要： A disc is provided which includes a disc body of disc shape having a center hole. An information recording area is formed on one side surface of the disc body. The information recording area has information thereon read by reflection of laser light. The information recording area has an inner circumferential edge positioned adjacent to the center hole. The disc body has a radius ranging from 39 mm to 80 mm, the center hole has a radius ranging from 7.5 mm to 7.55 mm, and the inner circumferential edge of the information recording area being positioned to extend from a radius of 15 mm to 22 mm from the center of the disc body. A disc may be manufactured by variations of the following disc manufacturing method including the steps of: supporting a stamper on a first mold by a supporting means; defining a forming space by clamping the first mold to a second mold; defining a center hole of the disc by advancing a center hole defining member into a center part of the forming space; connecting a injection means into the forming space by opening a gate member of a resin injection member and filling the forming space with a resin through a communicating hole from the injection means; and cooling the resin in the forming space after shutting off connection between the injection means and the forming space by closing the gate member of the resin injection member.

    摘要翻译： 提供了一种盘，其包括具有中心孔的盘形盘体。 信息记录区域形成在盘体的一个侧表面上。 信息记录区域具有通过激光反射读取的信息。 信息记录区域具有邻近中心孔定位的内圆周边缘。 盘体的半径范围为39mm至80mm，中心孔的半径范围为7.5mm至7.55mm，信息记录区的内圆周边缘从15mm的半径延伸至22 mm从盘体的中心。 盘可以通过以下盘制造方法的变型制造，包括以下步骤：通过支撑装置在第一模具上支撑压模; 通过将第一模具夹紧到第二模具来限定成形空间; 通过将中心孔限定构件推进到成形空间的中心部分来限定盘的中心孔; 通过打开树脂注射构件的门构件并将注入装置通过来自注射装置的连通孔用树脂填充成形空间来将注射装置连接到成形空间中; 并且通过关闭树脂注入构件的浇口构件来关闭喷射装置和成形空间之间的连接，从而在形成空间中冷却树脂。