公开(公告)号：US5693886A

公开(公告)日：1997-12-02

申请号：US685548

申请日：1996-07-24

申请人： Sadao Seimiya ,  Noboru Ichinose ,  Takashi Tokuda ,  Yoshikazu Goto ,  Shingo Kamoshita

发明人： Sadao Seimiya ,  Noboru Ichinose ,  Takashi Tokuda ,  Yoshikazu Goto ,  Shingo Kamoshita

IPC分类号： G01L1/14 ,  G01L9/12 ,  G01G11/04

CPC分类号： G01L1/142

摘要： A pressure sensor, having a simple structure for accurately measuring any one of pressure and weight, is provided. The pressure sensor includes a pair of electrode layers and a dielectric layer. The dielectric layer is composed of a rubber elastic body positioned between the pair of electrode layers to act as a spacer for the pair of electrode layers. The dielectric layer has a tan .delta., at 1 to 30 Hz at a temperature of 10.degree. C. to 30.degree. C., of 0.03 or less. The dielectric layer also has a rubber hardness of 20 to 80 degrees in terms of scale A according to JIS-K-6301 at 10.degree. C. to 30.degree. C. Further, the dielectric layer has an impact resilience of 75% or more measured according to JIS-K-6301 at 10.degree. C. to 30.degree. C. and a compression set of 3% or less measured according to JIS-K-6301 at 10.degree. C. to 30.degree. C. The dielectric layer is formed of any one of natural rubber, polybutadiene rubber, polyisoprene rubber, polyurethane rubber and silicone rubber.

摘要翻译： 提供了一种压力传感器，其具有用于精确测量任何一种压力和重量的简单结构。 压力传感器包括一对电极层和电介质层。 电介质层由位于一对电极层之间的橡胶弹性体构成，用作一对电极层的间隔物。 电介质层的tanδ为1〜30Hz，温度为10〜30℃，为0.03以下。 电介质层在10℃〜30℃下，根据JIS-K-6301的规模A也具有20〜80度的橡胶硬度。此外，电介质层的冲击弹性为75％以上 根据JIS-K-6301在10℃〜30℃，根据JIS-K-6301在10〜30℃下测定的3％以下的压缩永久变形。介电层由 任何一种天然橡胶，聚丁二烯橡胶，聚异戊二烯橡胶，聚氨酯橡胶和硅橡胶。

公开(公告)号：US5428473A

公开(公告)日：1995-06-27

申请号：US43780

申请日：1993-04-06

申请人： Teruyuki Takizawa ,  Yoshikazu Goto ,  Toshiyuki Shimada

发明人： Teruyuki Takizawa ,  Yoshikazu Goto ,  Toshiyuki Shimada

IPC分类号： G11B7/085 ,  G11B7/09 ,  G02B26/08

CPC分类号： G11B7/0925 ,  G11B7/08564

摘要： A mirror driving apparatus includes a rotary mirror, a support member for rotatably supporting the rotary mirror, a driving section for rotating the rotary mirror, a rotary electrode mounted on the rotary mirror or the support member, a fixed electrode disposed close to the rotary electrode and generally parallel thereto, a fixing section to which the support member and the fixed electrode are mounted, and a detecting section for detecting electrostatic capacity or a variation thereof between the rotary electrode and the fixed electrode. A mechanical vibration system, formed by the rotary mirror and the rotary mirror support member, is controlled based on the amount of rotary movement of the rotary mirror detecting as a change in capacity between the electrodes to suppress resonance of the rotary mirror. Additionally, by superposing an additional high frequency component outside the control band onto the rotary mirror control signal, the rotary mirror can be moved in fine increments. Thus, a dead band region (hysteresis characteristic) of the mechanical vibration system is limited.

摘要翻译： 镜驱动装置包括旋转镜，用于可旋转地支撑旋转镜的支撑构件，用于旋转旋转镜的驱动部，安装在旋转镜或支撑构件上的旋转电极，靠近旋转电极设置的固定电极 并且大致平行于其，安装有支撑构件和固定电极的固定部分和用于检测静电电容的检测部分或其旋转电极和固定电极之间的变化。 基于旋转镜的旋转运动量，由旋转镜和旋转镜支撑构件形成的机械振动系统作为电极间的容量变化而被检测，以抑制旋转镜的共振。 此外，通过将控制带外的附加高频分量叠加到旋转镜控制信号上，旋转镜可以以微小的增量移动。 因此，机械振动系统的死区区域（滞后特性）受到限制。

公开(公告)号：US5214630A

公开(公告)日：1993-05-25

申请号：US635893

申请日：1991-01-04

申请人： Yoshikazu Goto ,  Benichi Miyazaki

发明人： Yoshikazu Goto ,  Benichi Miyazaki

IPC分类号： G11B7/085 ,  G11B7/12 ,  G11B7/135

CPC分类号： G11B7/08582 ,  G11B7/12

摘要： A carriage which is provided with a light beam focusing lens for focusing the light beam on an optical disc is made of light transmissible material, a light reflection part is formed at one end part in one body of the carriage, and a carriage holding mechanism is disposed on both sides in one body thereof so as to be movable in the radial direction of the optical disc, the light beam is applied to the carriage at the other end part thereof.

摘要翻译： 设置有用于将光束聚焦在光盘上的光束聚焦透镜的托架由透光材料制成，光反射部分形成在托架的一个主体中的一个端部处，托架保持机构是 设置在其一个主体的两侧，以便能够在光盘的径向方向上移动，光束在其另一端部被施加到滑架。

公开(公告)号：US5150343A

公开(公告)日：1992-09-22

申请号：US554337

申请日：1990-07-19

申请人： Yoshikazu Goto ,  Satoshi Kikuya ,  Benichi Miyazaki

发明人： Yoshikazu Goto ,  Satoshi Kikuya ,  Benichi Miyazaki

IPC分类号： G11B7/085

CPC分类号： G11B7/08582 ,  G11B7/08517

摘要： An optical head which includes a movable bobbin having an objective lens and tracking coils for tracking operation, a carriage guided in such a manner to be able to move in the tracking direction and a state transformation mechanism for transforming the state of the bobbin and carriage between a first state, in which the objective lens can move in the tracking direction but the carriage does not move in the tracking direction, and a second state, in which the movable bobbin and the carriage moves in the tracking direction as one body. When effecting a tracking operation, the state transformation mechanism transforms the state of the bobbin and the carriage into the first state, in which the objective lens can move in the tracking direction but the carriage does not move in the tracking direction, and a tracking drive current is then made to flow through the tracking coils to perform the tracking operation. This results in that the objective lens is supported by a system of a single degree of freedom, of which characteristics are determined by the mass of the movable bobbin and the spring constant of the bobbin supporting means. In contrast, when effecting an access operation, the state transformation mechanism transforms the movable bobbin and the carriage into the second state, in which the bobbin and the carriage move in the tracking direction in one united body, and an access drive current is then made to flow through the tracking coils to effect the access operation. Thereby, tracking performance can be increased and a seeking operation can be performed at a high speed. Further, the tracking coil can be used to effect the access drive operation. Thus, there can be less weight of a movable part of the optical head and lower power consumption.

摘要翻译： 一种光头，包括具有物镜的可动线轴和用于跟踪操作的跟踪线圈，以能够沿跟踪方向移动的方式引导的托架和用于将梭芯和托架的状态变换为 第一状态，其中物镜可以在跟踪方向上移动，但是托架不沿跟踪方向移动，而第二状态是可动线轴和托架沿跟踪方向作为一体移动的第二状态。 当进行跟踪操作时，状态变换机构将筒管和滑架的状态变换为第一状态，其中物镜可沿跟踪方向移动，但滑架不沿跟踪方向移动，并且跟踪驱动 然后使电流流过跟踪线圈以执行跟踪操作。 这导致物镜由单个自由度的系统支撑，其特性由可动筒管的质量和筒管支撑装置的弹簧常数决定。 相反，当进行访问操作时，状态转换机构将可动线轴和滑架转换成线轴和滑架沿着跟踪方向一体移动的第二状态，然后形成存取驱动电流 流过跟踪线圈以实现访问操作。 因此，可以提高跟踪性能，并且可以高速执行寻道操作。 此外，可以使用跟踪线圈来实现访问驱动操作。 因此，光头的可移动部分的重量可以更少，并且功耗更低。