公开(公告)号：US08979265B2

公开(公告)日：2015-03-17

申请号：US12724682

申请日：2010-03-16

申请人： Hiroshi Itoh ,  Hajime Nakajima

发明人： Hiroshi Itoh ,  Hajime Nakajima

IPC分类号： A61B3/14 ,  A61B3/10

CPC分类号： A61B3/14

摘要： In a photographing optical system, an autofluorescence barrier filter having a characteristic of transmitting a light having an autofluorescence wavelength and a near-infrared wavelength, and a near-infrared light cut-off filter having a characteristic of transmitting the visible light and blocking the near-infrared light are disposed to be replaceable. In the case of observing a fundus, the fluorescence barrier filter is inserted into an optical path in an observation photographing optical system, so that observation can be performed by using a near-infrared illuminating light. In the case of autofluorescence photographing, the photographing can be performed without filter switching. In the case of color photographing, at the time of observation, the observation is performed using the fluorescence barrier filter, and at the time of photographing, the photographing can be performed using the replaced infrared light cut-off filter.

摘要翻译： 在摄影光学系统中，具有透射具有自发荧光波长和近红外波长的光的特性的自发荧光屏障滤光器，以及具有透射可见光并阻挡近红外光的特性的近红外光截止滤光器 - 红外光被设置为可更换的。 在观察眼底的情况下，将荧光屏障滤光片插入到观察拍摄光学系统的光路中，从而可以通过使用近红外线照明光进行观察。 在自发荧光拍摄的情况下，可以在不进行滤镜切换的情况下进行拍摄。 在彩色拍摄的情况下，在观察时，使用荧光屏障滤光片进行观察，在拍摄时可以使用更换的红外线截止滤光片进行摄影。

公开(公告)号：US08939581B2

公开(公告)日：2015-01-27

申请号：US13419227

申请日：2012-03-13

申请人： Motoya Takai ,  Kyoji Sekiguchi ,  Hajime Nakajima

发明人： Motoya Takai ,  Kyoji Sekiguchi ,  Hajime Nakajima

IPC分类号： A61B3/14 ,  A61B3/10 ,  A61B3/12 ,  A61B3/18

CPC分类号： A61B3/12 ,  A61B3/14 ,  A61B3/185

摘要： An ophthalmologic photographing apparatus includes an optical system, a pedestal, an auxiliary lens configured to be able to be inserted into and retracted from the optical system, a focusing lens, a focusing lens driving unit configured to move the focusing lens along an optical axis, a pedestal position detection unit configured to detect that the pedestal is away from the subject's eye by a predetermined distance, an auxiliary lens insertion detection unit configured to detect that the auxiliary lens is inserted into the optical system, a storage unit configured to store a position of the focusing lens, and a control unit configured to cause the focusing lens driving unit to move the focusing lens to a predetermined position stored in the storage unit based on outputs from the pedestal position detection unit and the auxiliary lens insertion detection unit.

摘要翻译： 一种眼科摄影装置，包括光学系统，基座，配置成能够插入到光学系统和从光学系统缩回的辅助透镜;聚焦透镜，配置成沿着光轴移动聚焦透镜的聚焦透镜驱动单元， 基座位置检测单元，被配置为检测所述基座远离所述被检眼的预定距离;辅助透镜插入检测单元，被配置为检测所述辅助透镜插入到所述光学系统中;存储单元，被配置为存储位置 以及控制单元，其被配置为基于来自所述基座位置检测单元和所述辅助透镜插入检测单元的输出使所述聚焦透镜驱动单元将所述聚焦透镜移动到存储在所述存储单元中的预定位置。

公开(公告)号：US08829421B2

公开(公告)日：2014-09-09

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： G01D5/34 ,  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; 和用于计算绝对旋转角度的计算器; 根据来自光接收器的信号。 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。 当以Pn表示第n个遮光部分的预定圆周方向的间距，并将第n个遮光部分的宽度表示为Wn时，对应于角度θ的透射率T（＆amp; t; n） 第n个遮光部分的n和遮光部分的间距Pn满足预定的方程式，并且光学图案中的遮光部分的宽度Wn根据遮光部分的间距Pn的函数而变化 。

公开(公告)号：US08415610B2

公开(公告)日：2013-04-09

申请号：US12990508

申请日：2009-06-03

申请人： Hajime Nakajima ,  Takuya Noguchi ,  Takeshi Musha ,  Youichi Omura ,  Toshiro Nakashima ,  Tatsuya Nagatani ,  Takashi Iwamoto

发明人： Hajime Nakajima ,  Takuya Noguchi ,  Takeshi Musha ,  Youichi Omura ,  Toshiro Nakashima ,  Tatsuya Nagatani ,  Takashi Iwamoto

IPC分类号： G01D5/34

CPC分类号： G01D5/347 ,  G01D5/3473

摘要： Present invention provides an optical encoder capable of improving the precision of an interpolation angle in a single signal track, in an encoder of sine-wave angle interpolation type. The optical encoder includes a waveform, in which a phase-modulated wave is superimposed in a predetermined period over a sine-wave of a fundamental period, as a signal track (103), and an optical detector (104) for extracting the sine signal and the cosine signal of the phase-modulated wave. An operation unit (106) operates electric angles individually from the output signals of a first optical detector pair and a second optical detector pair belonging to the optical detector, and determines the sum and difference of the electric angles, thereby acquiring the electric angle and the phase-modulated wave of the fundamental period.

摘要翻译： 本发明提供了一种在正弦波角插值类型的编码器中能够提高单个信号轨道内插角的精度的光学编码器。 光学编码器包括波形，其中在基本周期的正弦波上以预定周期叠加相位调制波作为信号轨道（103），以及用于提取正弦信号的光学检测器（104） 和相位调制波的余弦信号。 操作单元（106）从属于光检测器的第一光检测器对和第二光检测器对的输出信号分别操作电角度，并且确定电角度的和差，从而获得电角度和 基波周期的相位调制波。

公开(公告)号：US20120169996A1

公开(公告)日：2012-07-05

申请号：US13419227

申请日：2012-03-13

申请人： Motoya Takai ,  Kyoji Sekiguchi ,  Hajime Nakajima

发明人： Motoya Takai ,  Kyoji Sekiguchi ,  Hajime Nakajima

IPC分类号： A61B3/15

CPC分类号： A61B3/12 ,  A61B3/14 ,  A61B3/185

摘要： An ophthalmologic photographing apparatus includes an optical system, a pedestal, an auxiliary lens configured to be able to be inserted into and retracted from the optical system, a focusing lens, a focusing lens driving unit configured to move the focusing lens along an optical axis, a pedestal position detection unit configured to detect that the pedestal is away from the subject's eye by a predetermined distance, an auxiliary lens insertion detection unit configured to detect that the auxiliary lens is inserted into the optical system, a storage unit configured to store a position of the focusing lens, and a control unit configured to cause the focusing lens driving unit to move the focusing lens to a predetermined position stored in the storage unit based on outputs from the pedestal position detection unit and the auxiliary lens insertion detection unit.

摘要翻译： 一种眼科摄影装置，包括光学系统，基座，配置成能够插入到光学系统和从光学系统缩回的辅助透镜;聚焦透镜，配置成沿着光轴移动聚焦透镜的聚焦透镜驱动单元， 基座位置检测单元，被配置为检测所述基座远离所述被检眼的预定距离;辅助透镜插入检测单元，被配置为检测所述辅助透镜插入到所述光学系统中;存储单元，被配置为存储位置 以及控制单元，其被配置为基于来自所述基座位置检测单元和所述辅助透镜插入检测单元的输出使所述聚焦透镜驱动单元将所述聚焦透镜移动到存储在所述存储单元中的预定位置。

公开(公告)号：US07939796B2

公开(公告)日：2011-05-10

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

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：US20100238402A1

公开(公告)日：2010-09-23

申请号：US12724682

申请日：2010-03-16

申请人： Hiroshi Itoh ,  Hajime Nakajima

发明人： Hiroshi Itoh ,  Hajime Nakajima

IPC分类号： A61B3/14

CPC分类号： A61B3/14

摘要： In a photographing optical system, an autofluorescence barrier filter having a characteristic of transmitting a light having an autofluorescence wavelength and a near-infrared wavelength, and a near-infrared light cut-off filter having a characteristic of transmitting the visible light and blocking the near-infrared light are disposed to be replaceable. In the case of observing a fundus, the fluorescence barrier filter is inserted into an optical path in an observation photographing optical system, so that observation can be performed by using a near-infrared illuminating light. In the case of autofluorescence photographing, the photographing can be performed without filter switching. In the case of color photographing, at the time of observation, the observation is performed using the fluorescence barrier filter, and at the time of photographing, the photographing can be performed using the replaced infrared light cut-off filter.

摘要翻译： 在摄影光学系统中，具有透射具有自发荧光波长和近红外波长的光的特性的自发荧光屏障滤光器，以及具有透射可见光并阻挡近红外光的特性的近红外光截止滤光器 - 红外光被设置为可更换的。 在观察眼底的情况下，将荧光屏障滤光片插入到观察拍摄光学系统的光路中，从而可以通过使用近红外线照明光进行观察。 在自发荧光拍摄的情况下，可以在不进行滤镜切换的情况下进行拍摄。 在彩色拍摄的情况下，在观察时，使用荧光屏障滤光片进行观察，在拍摄时可以使用更换的红外线截止滤光片进行摄影。

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：US5231282A

公开(公告)日：1993-07-27

申请号：US822109

申请日：1992-01-17

申请人： Kazuro Nishi ,  Hajime Nakajima ,  Masaya Mizunuma ,  Tatsuo Masumi ,  Shigeyuki Kaho ,  Tsuyoshi Horikawa ,  Shin Tahata

发明人： Kazuro Nishi ,  Hajime Nakajima ,  Masaya Mizunuma ,  Tatsuo Masumi ,  Shigeyuki Kaho ,  Tsuyoshi Horikawa ,  Shin Tahata

IPC分类号： G02F1/135 ,  G09G3/02 ,  H04N5/74

CPC分类号： G02F1/135 ,  G02F1/1354 ,  G09G3/02 ,  H04N5/7441 ,  G09G2310/061 ,  G09G2360/141 ,  G09G3/36

摘要： A liquid crystal light valve has a photoconductive layer between a pair of electrodes, and a liquid crystal layer. The resistivity of the photoconductive layer at the portion which is irradiated with light is reduced by partial light irradiation. By applying a voltage between the electrodes in this state, the voltage is applied to the liquid crystal layer in the portion which is irradiated with light and the crystalline structure at this portion is changed, thereby enabling image data writing. The photoconductive layer is a laminate of an amorphous Si film and an inorganic insulating film disposed on the electrode side, which structure suppresses the carrier injection from the electrode to the amorphous Si film. The polarity of a voltage for writing image data into the liquid crystal light valve is inverted for every horizontal scanning operation. That is, writing of black portions on a white background and writing of white portions on a black background are alternately executed. It is therefore possible to write data on one line and erase the data on the next line by a voltage of one polarity. By periodically setting a period in which no voltage is applied during writing, writing error caused by stored charges is prevented.

摘要翻译： 液晶光阀在一对电极和液晶层之间具有光电导层。 通过部分光照射，光照射部分的光电导层的电阻率降低。 通过在这种状态下在电极之间施加电压，将电压施加到被照射的部分中的液晶层，并且该部分的晶体结构发生变化，从而使图像数据写入。 光电导层是设置在电极侧的非晶Si膜和无机绝缘膜的层叠体，该结构抑制从电极向非晶Si膜的载流子注入。 对于每次水平扫描操作，将图像数据写入液晶光阀的电压的极性反转。 也就是说，交替地执行在白色背景上写入黑色部分并在黑色背景上写入白色部分。 因此，可以在一行上写入数据，并通过一个极性的电压擦除下一行的数据。 通过周期性地设定在写入期间不施加电压的周期，防止由存储的电荷引起的写入错误。

公开(公告)号：US5150556A

公开(公告)日：1992-09-29

申请号：US587679

申请日：1990-09-25

申请人： Toshiyuki Yamada ,  Yoshihiro Takahama ,  Kazushige Kurihara ,  Hajime Nakajima

发明人： Toshiyuki Yamada ,  Yoshihiro Takahama ,  Kazushige Kurihara ,  Hajime Nakajima

IPC分类号： E04B1/35 ,  E04B7/14

CPC分类号： E04B1/3544 ,  E04B7/14

摘要： A chord truss roof includes a ring-girder, cross beams arranged radially around the ring-girder, chord members stretched between the respective cross beams and the ring-girder. The roof supports itself by tensioning the chord members. The ring-girder has an upper compression ring, a lower tension ring, and plural struts connecting the two rings. The chord members arranged opposite one another with both end portions of the tension ring interposed therebetween are connected to the corresponding end portions of the tension ring, and are joined to one another via connection members which are disposed between both end portions of the tension ring. Further, each strut is provided along a line which bisects the angle made by a corresponding chord member and the plane defined by the tension ring.

摘要翻译： 和弦桁架屋顶包括环梁，围绕环梁径向布置的横梁，在各个横梁和环形梁之间延伸的弦杆构件。 屋顶通过张紧弦杆构件来支撑自己。 环形梁具有上压缩环，下张力环和连接两个环的多个支柱。 连接在张紧环的两端部的相互相对配置的弦构件被连接到张力环的对应的端部，并且通过布置在张紧环的两个端部之间的连接构件彼此接合。 此外，每个支柱沿着将由对应的弦构件和由张力环限定的平面所分成的角度的直线设置。