公开(公告)号：US5247493A

公开(公告)日：1993-09-21

申请号：US333686

申请日：1989-04-05

申请人： Kenjiro Kime ,  Keiji Nakamura ,  Isao Watanabe ,  Hajime Nakajima

发明人： Kenjiro Kime ,  Keiji Nakamura ,  Isao Watanabe ,  Hajime Nakajima

IPC分类号： G01B11/02 ,  G11B7/09 ,  G11B11/105

CPC分类号： G01B11/026 ,  G11B11/10534 ,  G11B11/10556 ,  G11B11/10576 ,  G11B7/0937

摘要： Magneto-optical disk recording and reproducing devices and actuators and distance detectors for use therewith are disclosed. The magneto-optical disk device includes a bimorph type actuator or an electromagnetic actuator for driving the magnetic head of the magneto-optical disk device. The bimorph actuator has a metallic shim having a width that varies with respect to the longitudinal distance in inverse proportion to the normal function of the first or the second free natural vibration mode. Alternatively, the bimorph type actuator has a recess formed on a bimorph element to expose a piezoelectric portion which outputs a voltage corresponding to the acceleration of the vibration of the actuator. The driver circuit of the actuator reduces the driving voltage when the frequency of the voltage generated at the recess comes into the neighborhood of a higher resonance frequency of the actuator. The optical distance detector comprises a light-emitting diode and a pair of photodiodes which detects the amount of light incident thereon after the light is reflected from a surface of an object the distance to which is measured. The geometric parameters of the photodiodes are selected such that the output of a first photodiode decreases as the measured distance increases while the output of a second photodiode increases as the measured distance increases. Thus, the normalized differential output of the two photodiodes, from which the measured distance is determined, varies substantially linearly with respect to the measured distance. In preferred forms, the photodetectors have stepped concentric configurations so that small distances can be measured accurately and efficiently.

公开(公告)号：US5305294A

公开(公告)日：1994-04-19

申请号：US040263

申请日：1993-03-30

申请人： Kenjiro Kime ,  Keiji Nakamura ,  Isao Watanabe ,  Hajime Nakajima

发明人： Kenjiro Kime ,  Keiji Nakamura ,  Isao Watanabe ,  Hajime Nakajima

IPC分类号： G01B11/02 ,  G11B7/09 ,  G11B11/105 ,  G11B13/04

CPC分类号： G11B11/10534 ,  G01B11/026 ,  G11B11/10556 ,  G11B11/10576 ,  G11B7/0937

摘要： Magneto-optical disk recording and reproducing devices and actuators and distance detectors for use therewith are disclosed. The mageneto-optical disk device comprises, in addition to the usual elements, a bimorph type actuator or an electromagnetic actuator for driving the magnetic head of the magneto-optical disk device. The bimorph actuator has a metallic shim whose width varies with respect to the longitudinal distance inversely porportional to the normal function of the first or the second free natural vibration mode. Alternatively, the bimorph type actuator have a recess formed on a bimorph element to expose a piezoelectric crystal which outputs a voltage corresponding to the acceleration of the vibration of the actuator; the driver circuit of the actuator reduces the driving voltage when the frequency of the voltage generated at the recess comes into the neighborhood of a higher resonance frequency of the actuator. The optical distance detector comprises a light-emitting diode and a pair of photodiodes which detects the amount of light incident thereon after being reflected at a surface of an object the distance to which is measured. The geometric parameters of the photodiodes are selected in such a manner that the output of a first photodiode decreases as the measured distance increases while the output of a second photodiode increases as the measured distance increases. Thus, the normalized differential output of the two photodiodes, from which the measured distance is determined, varies substantially linearly with respect to the measured distance. In preferred forms, the photodetectors have stepped concentric configurations so that small distances can be measured accurately and efficiently.

摘要翻译： 公开了磁光盘记录和再现装置以及与其一起使用的致动器和距离检测器。 除了通常的元件之外，磁光盘装置还包括用于驱动磁光盘装置的磁头的双压电晶片型致动器或电磁致动器。 双压电晶片致动器具有金属垫片，其宽度相对于纵向距离与第一或第二自由自然振动模式的正常功能相反地成比例地变化。 或者，双压电晶片型致动器具有形成在双晶片元件上的凹部，以暴露出输出与致动器的振动的加速度相对应的电压的压电晶体; 当在凹部处产生的电压的频率进入致动器的较高谐振频率附近时，致动器的驱动器电路降低驱动电压。 光学距离检测器包括发光二极管和一对光电二极管，其在被测量的距离的物体的表面处被反射后检测入射到其上的光量。 选择光电二极管的几何参数，使得第一光电二极管的输出随测量距离的增加而减小，而第二光电二极管的输出随测量距离的增加而增加。 因此，确定测量距离的两个光电二极管的归一化差分输出相对于测量的距离基本上线性地变化。 在优选的形式中，光电检测器具有阶梯同心配置，使得能够精确而有效地测量小的距离。

公开(公告)号：US5115424A

公开(公告)日：1992-05-19

申请号：US301329

申请日：1989-01-23

申请人： Hajime Nakajima ,  Isao Watanabe ,  Kunimaro Tanaka

发明人： Hajime Nakajima ,  Isao Watanabe ,  Kunimaro Tanaka

IPC分类号： G11B11/10 ,  G11B7/007 ,  G11B7/013 ,  G11B7/24 ,  G11B11/105

CPC分类号： G11B7/24076 ,  G11B11/10584 ,  G11B7/24079 ,  G11B7/24085 ,  G11B11/10578

摘要： An optical type information record carrier is disclosed which includes an arrangement wherein the depth of the guide grooves is selected to be about (2N+1).lambda./8n (N=1, 2, 3, . . . ) and the inclination angle of the wall surface of the carrier is steep enough to ensure that the information recording medium will not adhere to the wall surface of the guide grooves, or will only adhere very weakly if it does adhere. Thermal conduction at the wall surface of the guide grooves is prevented so that extension of the recording bits is restricted.

摘要翻译： 公开了一种光学型信息记录载体，其包括一种布置，其中导槽的深度选择为约（2N + 1）λ/ 8n（N = 1,2,3，...）和倾斜角 载体的壁表面足够陡峭，以确保信息记录介质不会粘附到导向槽的壁表面，或者如果它粘附，则仅粘附得非常弱。 防止引导槽的壁面处的导热，使得记录位的延伸受到限制。

公开(公告)号：US20130320201A1

公开(公告)日：2013-12-05

申请号：US14000736

申请日：2011-11-30

申请人： Takuya Noguchi ,  Hajime Nakajima ,  Takeshi Musha ,  Yoshinao Tatei ,  Takashi Hirai

发明人： Takuya Noguchi ,  Hajime Nakajima ,  Takeshi Musha ,  Yoshinao Tatei ,  Takashi Hirai

IPC分类号： G01D5/347

CPC分类号： G01D5/3473 ,  G01D5/34784

摘要： An optical encoder includes: an optical scale having periodical optical patterns and can be relatively and angularly displaced; a projector for irradiating the optical scale with light; a light receiver for receiving light from the optical scale; and a calculator for calculating an absolute rotation angle θ of the optical scale in accordance with a signal from the light receiver. The optical patterns include a plurality of light shielding portions and a plurality of light transmitting portions, each of the portions being located alternately. When a pitch of an n-th light shielding portion in a predetermined circumferential direction is denoted by Pn and a width of the n-th light shielding portion is denoted by Wn, a transmissivity T(θn) corresponding to an angle θn of the n-th light shielding portion and the pitch Pn of the light shielding portion satisfy predetermined equations, and the width Wn of the light shielding portion in the optical pattern varies in accordance with a function of the pitch Pn of the light shielding portion.

摘要翻译： 光学编码器包括：具有周期性光学图案并且可以相对且角度位移的光学秤; 用于用光照射光标的投影仪; 用于接收来自光学刻度尺的光的光接收器; 以及用于根据来自光接收器的信号计算光刻尺的绝对旋转角度θ的计算器。 光学图案包括多个遮光部分和多个透光部分，每个部分交替设置。 当第n个遮光部分在预定圆周方向上的间距由Pn表示，并且第n个遮光部分的宽度由Wn表示时，与n的角度相对应的透射率T（thetan） 遮光部的节距Pn满足预定的方程，光学图案中的遮光部的宽度Wn根据遮光部的间距Pn的函数而变化。

公开(公告)号：US20130027669A1

公开(公告)日：2013-01-31

申请号：US13557081

申请日：2012-07-24

申请人： Hajime Nakajima

发明人： Hajime Nakajima

IPC分类号： A61B3/12

CPC分类号： A61B3/0075

摘要： An ophthalmologic apparatus including a measurement unit configured to measure a subject's eye, a sliding substrate configured to slide the measurement unit with respect to a base via a guide shaft, a plurality of shaft guide members provided on the base and configured to guide the guide shaft in an axial direction thereof, and an inclination reduction unit provided between the plurality of shaft guide members and configured to reduce inclination of the guide shaft with respect to the base.

摘要翻译： 一种眼科装置，包括被配置为测量被检眼的测量单元，滑动基板，被配置为经由引导轴相对于基座滑动测量单元;多个轴引导构件，设置在基部上并构造成引导引导轴 以及倾斜减小单元，设置在所述多个轴引导构件之间并且构造成减小所述引导轴相对于所述基座的倾斜。

公开(公告)号：US08134359B2

公开(公告)日：2012-03-13

申请号：US12596729

申请日：2008-04-17

申请人： Hiroshi Nishizawa ,  Hajime Nakajima ,  Takeshi Musha ,  Yoichi Ohmura

发明人： Hiroshi Nishizawa ,  Hajime Nakajima ,  Takeshi Musha ,  Yoichi Ohmura

IPC分类号： G01B7/14

CPC分类号： G01D5/2451

摘要： The present invention provides a magnetic rotational-angle detector capable of detecting a position and a rotational angle of a rotating member with excellent accuracy. The magnetic rotational-angle detector includes device arrays (51, 52) constituted by a plurality of magnetic sensor devices which are arranged to cancel the n-th order harmonic components by each other. In the device arrays, the magnetic sensor devices corresponding to each other are arranged such that they are spaced apart with a distance of (2m+1)λ, and the arrangement of all the magnetic sensor devices and their orientations with respect to a power-supply terminal and a ground terminal are axisymmetrical about a straight line (2b) passing through a barycenric position (59) of all the magnetic sensor devices which is positioned on a straight line along a radial direction of a rotating drum (1).

摘要翻译： 本发明提供一种能够以高精度检测旋转部件的位置和旋转角度的磁旋转角度检测装置。 磁旋转角度检测器包括由多个磁传感器装置构成的装置阵列（51,52），其被布置为相互抵消n次谐波分量。 在器件阵列中，彼此对应的磁传感器装置被布置为使得它们以（2m + 1）λ的距离间隔开，并且所有磁传感器装置的布置及其相对于功率 - 供电端子和接地端子围绕通过沿着旋转鼓（1）的径向位于直线上的所有磁传感器装置的重心位置（59）的直线（2b）的轴对称。

公开(公告)号：US20100148044A1

公开(公告)日：2010-06-17

申请号：US12295920

申请日：2007-03-29

申请人： Toshikazu Satone ,  Mikio Iijima ,  Hajime Nakajima ,  Takashi Okamuro ,  Yohichi Ohmura

发明人： Toshikazu Satone ,  Mikio Iijima ,  Hajime Nakajima ,  Takashi Okamuro ,  Yohichi Ohmura

IPC分类号： G01B11/26 ,  G01D5/34 ,  H05K7/00 ,  H05K13/00

CPC分类号： G01D11/245 ,  Y10T29/49002

摘要： An electronic device housing includes a metallic base part 101; a resin part 402 fixed to the base part 101; and a printed circuit board 104 coming into contact with the resin part 402; wherein bonding of the base part 101 to the resin part 402 is carried out by way of a nanomold technique and wherein the resin part 402 has insulating property.

摘要翻译： 电子设备壳体包括金属基部101; 固定到基部101的树脂部402; 和与树脂部402接触的印刷电路板104; 其中，基部101与树脂部402的接合通过纳米技术进行，其中，树脂部402具有绝缘性。

公开(公告)号：US20100073633A1

公开(公告)日：2010-03-25

申请号：US12565594

申请日：2009-09-23

申请人： Koji Uchida ,  Shinya Tanaka ,  Hiroyuki Inoue ,  Hajime Nakajima

发明人： Koji Uchida ,  Shinya Tanaka ,  Hiroyuki Inoue ,  Hajime Nakajima

IPC分类号： A61B3/14

CPC分类号： A61B3/12 ,  A61B3/15

摘要： A fundus camera wherein when a photography start switch is selected, the optical axis of an eye examining section is aligned with the optical axis of an eye by a detection operation of an alignment optical system. After focusing of a fundus image is performed, the eye examining section is moved to a first recording mode position, and a first photograph of the fundus is taken by a stroboscopic tube. Subsequent to taking the first photograph of the fundus, a base length is changed and an alignment position is moved to a second recording mode position so that a second photograph of the fundus is taken.

摘要翻译： 一种眼底照相机，其中当选择摄影启动开关时，通过对准光学系统的检测操作，眼睛检查部分的光轴与眼睛的光轴对准。 在执行眼底图像的聚焦之后，将眼睛检查部移动到第一记录模式位置，并且通过频闪管拍摄眼底的第一张照片。 在拍摄眼底的第一张照片之后，改变基准长度并且将对准位置移动到第二记录模式位置，从而拍摄眼底的第二张照片。

公开(公告)号：US20070187581A1

公开(公告)日：2007-08-16

申请号：US10598450

申请日：2004-08-05

申请人： Yoichi Ohmura ,  Toru Oka ,  Hajime Nakajima

发明人： Yoichi Ohmura ,  Toru Oka ,  Hajime Nakajima

IPC分类号： G01D5/34 ,  G01D5/36

CPC分类号： G01D5/38

摘要： An optical encoder includes an incoherent light source; a first grating, which is an amplitude grating having a first grating period, for spatial amplitude modulation of the incoherent light from the light source; a second grating, which is a phase grating having a second grating period, for spatial phase modulation of light from the first grating; a third grating, which is an amplitude grating having a third grating period, for spatial amplitude modulation of light from the second grating; and a light detecting element for detecting lights from the third grating. The encoder detects relative displacement between the respective gratings. The optical transfer function from the light source to the light detecting element is enhanced, and the efficiency in utilizing light is improved.

摘要翻译： 光学编码器包括非相干光源; 第一光栅，其是具有第一光栅周期的幅度光栅，用于来自光源的非相干光的空间幅度调制; 第二光栅，其是具有第二光栅周期的相位光栅，用于来自第一光栅的光的空间相位调制; 第三光栅，其是具有第三光栅周期的幅度光栅，用于来自第二光栅的光的空间幅度调制; 以及用于检测来自第三光栅的光的光检测元件。 编码器检测各个光栅之间的相对位移。 提高了从光源到光检测元件的光传递函数，提高了利用光的效率。

公开(公告)号：US5283959A

公开(公告)日：1994-02-08

申请号：US958074

申请日：1992-10-07

申请人： Yoshikazu Nagayoshi ,  Hajime Nakajima ,  Misao Igarashi

发明人： Yoshikazu Nagayoshi ,  Hajime Nakajima ,  Misao Igarashi

IPC分类号： B01D46/02 ,  C02F11/12 ,  F26B1/00 ,  F26B3/08 ,  F26B3/084 ,  F26B17/10 ,  F26B17/00

CPC分类号： F26B1/00 ,  F26B3/084

摘要： A system of drying moist sludge includes a drier as a main component. The drier is composed of a lower gas fluidizing section and an upper high speed fluidizing section. Moist sludge to be be dried is introduced into a mixer in which each particle is coated with the moist sludge, and the coated particles are supplied to the gas fluidizing section. Fine particles flown away from the gas fluidizing section are fluidized in the high speed fluidizing section while they are dried by heating elements. After completion of the drying operation, dried sludge particles are collected in a dust collector. Subsequently, fine dried sludge particles are conducted to a bag type dust collecting unit from which they are discharged to a sludge hopper. A part of the coarse dried sludge particles collected in the dust collector is supplied to the gas fluidizing section, a part of the same is supplied to the mixer to be mixed with moist sludge, and the balance is delivered to the sludge hopper. The gas exhausted from the bag type dust collecting unit is introduced into the gas fluidizing section as fluidizing gas. A part of the exhausted gas is extracted to the outside by a quantity substantially equal to that of the gas vaporized from the moist sludge.

摘要翻译： 干燥潮湿污泥的系统包括干燥剂作为主要成分。 干燥器由下部气体流化部和上部高速流动部构成。 将待干燥的湿润污泥引入混合器中，其中每个颗粒都涂覆有湿污泥，并将涂覆的颗粒供应到气体流化部分。 从气体流化部流出的细颗粒在通过加热元件干燥的同时在高速流化部中流化。 干燥操作完成后，将干燥的污泥颗粒收集在集尘器中。 随后，将细干燥的污泥颗粒传送到袋式集尘装置，将它们排放到污泥料斗。 将收集在集尘器中的粗干燥的污泥颗粒的一部分供给到气体流化部，将其一部分供给混合器，与潮湿的污泥混合，将余量输送到污泥料斗。 从袋式集尘单元排出的气体作为流化气体导入气体流化部。 一部分排出的气体以与从潮湿污泥蒸发的气体大致相等的量向外部提取。