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1. 发明申请

US20060193235A1 Diffraction element and optical head device 审中-公开
$Diffraction element and optical head device$
标题翻译：衍射元件和光头设备
公开(公告)号：US20060193235A1
公开(公告)日：2006-08-31
申请号：US11410951
申请日：2006-04-26
申请人： Koichi Murata , Naomitsu Umemura
发明人： Koichi Murata , Naomitsu Umemura
IPC分类号： G11B7/135
CPC分类号： G11B7/1275 , G02B5/1828 , G02B5/1833 , G02B5/3016 , G11B7/1353 , G11B7/1369 , G11B2007/0006
摘要： A diffraction element and an optical head having a diffraction efficiency not changing depending on wavelength of light, wherein the diffraction efficiency setting in configurable in relation to wavelength, are provided. In a diffraction element 10 diffracting light, an optically anisotropic medium 11 having birefringency and an optically isotropic medium 12 are periodically and alternately arranged, and in the optically anisotropic medium 11, a principal axis direction of refractive index ellipse in a plane perpendicular to the optical axis on which incident light is transmitted or in a plane close to the plane, is spirally rotated around an axis in parallel with the optical axis. In particular, the optically anisotropic medium 11 having birefringency can be constituted by a polymer liquid crystal formed by polymerizing a liquid crystal.
摘要翻译：提供衍射效率设定为与波长相关的可配置的衍射效率设定的衍射效率设定在衍射效率设定中。在具有衍射光的衍射元件10中，具有双折射性的光学各向异性介质11和光学各向同性介质12周期性地交替排列，并且在光学各向异性介质11中，在与光学器件垂直的平面中的折射率椭圆的主轴方向入射光透射的轴线或靠近平面的平面中的轴线与光轴平行地绕轴线旋转。特别地，具有双折射性的光学各向异性介质11可以由通过聚合液晶形成的聚合物液晶构成。

2. 发明授权

US06917576B2 Retarder and optical head device installing the same 有权
标题翻译：减速器和光学头装置安装相同
公开(公告)号：US06917576B2
公开(公告)日：2005-07-12
申请号：US10401889
申请日：2003-03-31
申请人： Takehiko Nishiyama , Naomitsu Umemura , Hiromasa Sato , Masahiro Murakawa , Yoshiharu Ooi , Yuzuru Tanabe
发明人： Takehiko Nishiyama , Naomitsu Umemura , Hiromasa Sato , Masahiro Murakawa , Yoshiharu Ooi , Yuzuru Tanabe
IPC分类号： G02B5/30 , G02B7/00 , G11B7/00 , G11B7/125 , G11B7/135 , G11B7/22 , G11B11/105
CPC分类号： G11B7/22 , G02B5/3083 , G02B7/008 , G11B7/1275 , G11B7/1353 , G11B7/1356 , G11B7/1365 , G11B7/1369 , G11B7/139 , G11B7/13925 , G11B11/10541 , G11B2007/0006
摘要： An adhesive is coated on at least one surface of a thin film of organic material having birefringent properties and a phase-difference producing function, and a fixing substrate having transmitting or reflecting properties is bonded to the thin film of organic material by the adhesive, wherein materials satisfying relations of E1
摘要翻译：将粘合剂涂覆在具有双折射性质和相位差产生功能的有机材料薄膜的至少一个表面上，并且具有透射或反射特性的固定基材通过粘合剂粘合到有机材料薄膜上，其中满足E 1＆lt; 1＆gt;＆lt; 2＆gt;和＆lt; 3＆gt;＆lt; E＆lt; 2＆gt; 2的关系的材料，其中E 1 < / SUB>是有机材料薄膜的线性膨胀系数，E 2是粘合剂的线性膨胀系数，E 3是线膨胀系数固定基板，有机材料薄膜的玻璃化转变温度为150°以上。通过这样的结构，可以获得相位差的温度特性，以便减少从半导体激光源发射的振荡波长的温度变化，从而即使当发射的光的波长发生波动时，相位差也可以保持恒定由半导体激光源因温度而异。

3. 发明授权

US06580674B1 Phase shifter and optical head device mounted with the same 有权
标题翻译：移相器和安装有相机的光学头装置
公开(公告)号：US06580674B1
公开(公告)日：2003-06-17
申请号：US09807961
申请日：2001-05-22
申请人： Takehiko Nishiyama , Naomitsu Umemura , Hiromasa Sato , Masahiro Murakawa , Yoshiharu Ooi , Yuzuru Tanabe
发明人： Takehiko Nishiyama , Naomitsu Umemura , Hiromasa Sato , Masahiro Murakawa , Yoshiharu Ooi , Yuzuru Tanabe
IPC分类号： G11B700
CPC分类号： G11B7/22 , G02B5/3083 , G02B7/008 , G11B7/1275 , G11B7/1353 , G11B7/1356 , G11B7/1365 , G11B7/1369 , G11B7/139 , G11B7/13925 , G11B11/10541 , G11B2007/0006
摘要： An adhesive is coated on at least one surface of a thin film of organic material having birefringent properties and a phase-difference producing function, and a fixing substrate having transmitting or reflecting properties is bonded to the thin film of organic material by the adhesive, wherein materials satisfying relations of E1
摘要翻译：将粘合剂涂覆在具有双折射性质和相位差产生功能的有机材料薄膜的至少一个表面上，并且具有透射或反射特性的固定基材通过粘合剂粘合到有机材料薄膜上，其中满足E1

4. 发明授权

US5142254A Ultrasonic delay line device with an adjusting circuit for adjusting delay time, a comb-shaped filter using the ultrasonic delay line device and a method of adjusting delay time 失效
标题翻译：具有用于调整延迟时间的调整电路的超声波延迟线装置，使用超声波延迟线装置的梳状滤波器和调整延迟时间的方法
公开(公告)号：US5142254A
公开(公告)日：1992-08-25
申请号：US575570
申请日：1990-08-31
申请人： Etsuji Kimura , Naomitsu Umemura , Masahiko Maeda
发明人： Etsuji Kimura , Naomitsu Umemura , Masahiko Maeda
IPC分类号： H03H9/30 , H03H9/36 , H03H9/38
CPC分类号： H03H9/38
摘要： An ultrasonic delay line device has an adjusting circuit for adjusting delay time provided between two terminals at the power input side of an ultrasonic delay line, wherein the adjusting circuit includes a serial connection of a fixed capacitor and a variable resistor connected between said two terminals of the power input side and a fixed coil connected in parallel with the serial connection of the fixed capacitor and the variable resistor.
摘要翻译：超声波延迟线装置具有用于调整在超声波延迟线的电力输入侧的两个端子之间提供的延迟时间的调整电路，其中调整电路包括固定电容器和连接在所述两个端子之间的可变电阻器的串联连接电源输入侧和与固定电容器和可变电阻器的串联连接并联的固定线圈。

5. 发明授权

US4733204A Ultrasonic-wave delay element 失效
标题翻译：超声波延迟元件
公开(公告)号：US4733204A
公开(公告)日：1988-03-22
申请号：US843381
申请日：1986-03-24
申请人： Michihiko Uemura , Naomitsu Umemura , Tunaomi Fukui
发明人： Michihiko Uemura , Naomitsu Umemura , Tunaomi Fukui
IPC分类号： A61F2/00 , H03H9/36
CPC分类号： H03H9/36
摘要： An ultrasonic-wave delay line element comprises a pentagonal delay medium body formed by cutting at an angle of about 45.degree. a part of the major surface defined by a rectangular shape having two longer sides and two shorter sides, and has a pair of input and output electric-mechanic transducers provided on a side A formed by cutting the major surface. The input and output electric-mechanic transducers are attached to the cut side A at positions near longer side C contiguous to the cut side A with respect to the center of the cut side A; a reflection point for a sound-wave is provided in the cut side A while no reflection point is provided in a shorter side B contiguous to the out side A; two or more reflection points are provided in the longer side C; two reflection points are formed in the other shorter side D isolated from the cut side A; and four or more reflection points are provided in the other longer side E isolated from the cut side A.
摘要翻译：超声波延迟线元件包括五角形延迟介质体，该五边形延迟介质体通过以由具有两个长边和两个短边的矩形形状限定的主表面的一部分以约45°的角度进行切割而形成，并且具有一对输入和设置在通过切割主表面而形成的侧面A上的输出电力机械换能器。输入和输出电力机械换能器相对于切割侧A的中心附接到与切割侧A相邻的更长侧C附近的切割侧A; 在切断侧A上设置声波的反射点，而在与外侧A邻接的短边B中没有设置反射点; 在长边C上设置两个以上的反射点; 在与切割侧A隔离的另一短边D中形成两个反射点; 并且在与切割侧A隔离的另一长边E中设置四个以上的反射点。

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