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公开(公告)号：US07577279B2
公开(公告)日：2009-08-18
申请号：US10793747
申请日：2004-03-08
CPC分类号： G06K9/00033 , G06K2009/0006 , G06K2009/00932
摘要： An identity verification apparatus includes a light source for applying light that can pass through an object to be detected and having a fingerprints to the object to be detected, an image pickup unit for picking up light emitted from the light source and passing through projections of the fingerprint and light emitted from the light source and passing through depressions of the fingerprint, and for generating a fingerprint image including dark portions corresponding to the projections and bright portions corresponding to the depressions, and a signal processing unit for image processing the fingerprint image generated by the image pickup unit to generate fingerprint information, and for verifying an identity based on the fingerprint information.
摘要翻译： 身份验证装置包括：用于将能够通过待检测物体的光具有用于将待检测物体具有指纹的光源的光源，摄像单元，用于拾取从光源发射的光并通过 从光源发射并通过指纹凹陷的指纹和光，并且用于产生包括对应于与凹陷相对应的突出部分和亮部分的暗部分的指纹图像;以及信号处理单元，用于对由 图像拾取单元，用于生成指纹信息，以及用于基于指纹信息验证身份。
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公开(公告)号：US06972834B1
公开(公告)日：2005-12-06
申请号：US10182770
申请日：2000-12-11
申请人： Toru Oka , Hajime Nakajima , Masahiro Shikai , Akihide Shiratsuki , Jurgen Mohr , Ulrike Wallrabe , Uwe Hollenbach
发明人： Toru Oka , Hajime Nakajima , Masahiro Shikai , Akihide Shiratsuki , Jurgen Mohr , Ulrike Wallrabe , Uwe Hollenbach
CPC分类号： G01S17/48 , G01C3/06 , G01C3/085 , G01D5/26 , G01S7/481 , G01S7/4813 , G02B19/0028 , G02B19/0052 , G02B19/0061 , G02B19/0085
摘要： An optical distance sensor includes a first substrate provided with a light emitting element and a light detecting element, a one-piece optical structure body on a second substrate, the optical structure body having optical elements for converging incident light in a direction parallel to a surface of the second substrate and for converging an outgoing light beam from the light emitting element and a light beam reflected by an object in the direction parallel to the surface of the second substrate, and lenses for converging incident light in a direction perpendicular to the surface of the second substrate and for converging the outgoing light beam from the light emitting element and the light beam reflected by the object in the direction perpendicular to the surface of the second substrate, respectively.
摘要翻译： 光学距离传感器包括设置有发光元件和光检测元件的第一基板，在第二基板上的一体式光学结构体，所述光学结构体具有用于使入射光在平行于表面的方向会聚的光学元件 并且用于会聚来自发光元件的输出光束和在与第二基板的表面平行的方向上由物体反射的光束，以及用于在垂直于第二基板的表面的方向上会聚入射光的透镜 第二基板，用于分别使来自发光元件的出射光束和由物体反射的光束在垂直于第二基板的表面的方向上会聚。
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公开(公告)号：US06846116B2
公开(公告)日：2005-01-25
申请号：US10182628
申请日：2000-12-11
申请人： Toru Oka , Hajime Nakajima , Masahiro Shikai , Akihide Shiratsuki , Jurgen Mohr , Ulrike Wallrabe , Uwe Hollenbach
发明人： Toru Oka , Hajime Nakajima , Masahiro Shikai , Akihide Shiratsuki , Jurgen Mohr , Ulrike Wallrabe , Uwe Hollenbach
CPC分类号： G01S17/48 , G01D5/26 , G01S7/4813
摘要： A sensor head includes a first substrate provided with a light emitting element and a light detecting element, a one-piece optical structure body on a second substrate, the optical structure body having optical elements for converging incident light in a direction parallel to a surface of the second substrate and for converging an outgoing beam from the light emitting element and a light beam reflected by an object in the direction parallel to the surface of the second substrate, and lenses for converging incident light in a direction perpendicular to the surface of the second substrate and for converging the outgoing beam from the light emitting element and the light beam reflected by the object in the direction perpendicular to the surface of the second substrate, respectively.
摘要翻译： 传感器头包括设置有发光元件和光检测元件的第一基板，在第二基板上的一体式光学结构体，所述光学结构体具有用于使入射光沿平行于 所述第二基板用于会聚来自所述发光元件的输出光束和在与所述第二基板的表面平行的方向上由物体反射的光束，以及用于在与所述第二基板的表面垂直的方向上会聚入射光的透镜 并且用于分别使来自发光元件的输出光束和由物体反射的光束在垂直于第二基板的表面的方向上会聚。
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公开(公告)号：US06657185B2
公开(公告)日：2003-12-02
申请号：US09725184
申请日：2000-11-29
IPC分类号： G02B500
CPC分类号： G06K7/10683
摘要： An irregular pattern detector includes a first optical system, a transparent light guide body and a second optical system. The first optical system has a light source. The transparent light guide body has an incident face receiving incident light from the light source of the first optical system, a detection face facing the incident face for placing of a subject having an irregular pattern, a curved surface reflecting scattered light from the detection face, an optical absorbing face facing the curved surface and having an opening outputting light reflected from the curved surface. The second optical system, such as an imaging lens, guides the light from the opening of the optical absorbing face of the transparent light guide body to a camera device. This irregular pattern detector can be scaled down, and can produced precise images without any deformation.
摘要翻译： 不规则图案检测器包括第一光学系统，透明导光体和第二光学系统。 第一光学系统具有光源。 透明导光体具有从第一光学系统的光源接收入射光的入射面，面对入射面的检测面，用于放置具有不规则图案的被摄体，反射来自检测面的散射光的曲面， 面向曲面的光吸收面，具有从曲面反射的光的开口。 诸如成像透镜的第二光学系统将来自透明导光体的光吸收面的开口的光引导到相机装置。 这种不规则图案检测器可以缩小，并且可以产生精确的图像而没有任何变形。
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公开(公告)号：US06631788B2
公开(公告)日：2003-10-14
申请号：US10094993
申请日：2002-03-12
申请人： Masahiro Shikai , Hajime Nakajima , Toshiro Nakashima , Kazuo Takashima , Tatsushi Takahashi , Shigeki Yamakawa , Takeshi Fujiki , Kunikazu Koura , Koichi Nanno , Shigeru Abe
发明人： Masahiro Shikai , Hajime Nakajima , Toshiro Nakashima , Kazuo Takashima , Tatsushi Takahashi , Shigeki Yamakawa , Takeshi Fujiki , Kunikazu Koura , Koichi Nanno , Shigeru Abe
IPC分类号： B66B1314
CPC分类号： B66B13/26
摘要： An elevator system has a pair of horizontally opposed vertical surfaces defining therebetween a doorway or opening to an elevator cage and a door moving horizontally to open and close the opening. In particular, the system has a first optical device having a light emitter for emitting light and a second optical device having a light receiver for receiving the light emitted from the light emitter. The first and second optical devices are positioned in a vertical plane crossing the opening and adjacent to the opening. One of the first and second optical devices is positioned below the other of the first and second optical devices and mounted in the vertical surface.
摘要翻译： 电梯系统具有一对水平相对的垂直表面，在它们之间限定了电梯轿厢的门口或开口以及水平移动以打开和关闭开口的门。 特别地，该系统具有第一光学装置，其具有用于发光的光发射器和具有用于接收从发光体发射的光的光接收器的第二光学装置。 第一和第二光学装置定位在与开口相交并且与开口相邻的垂直平面中。 第一和第二光学器件中的一个位于第一和第二光学器件的另一个下方并且安装在垂直表面中。
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公开(公告)号：US5428217A
公开(公告)日：1995-06-27
申请号：US130874
申请日：1993-10-04
申请人： Hajime Nakajima , Masahiro Shikai
发明人： Hajime Nakajima , Masahiro Shikai
CPC分类号： G01D5/38
摘要： The present invention relates to an optical rotary encoder for detecting a position optically. In the optical rotary encoder of the invention, a light beam reflected by a half mirror enters a deflector, whereby it is reflected while being deflected in a certain direction. The reflected light beam again enters the half mirror. Transmitted light from the half mirror enters a position detector, in which a light spot is formed on an annular photodiode. The path of the reflected light from the deflector forms a cone having a vertical angle which is twice the angle of deflection of the deflector. The position detector is disposed perpendicularly to the optical axis of the reflected light in the case of the deflection angle being 0.degree. and with the center of the annular photodiode made coincident with the said optical axis. A suitable distance between the deflector and the photodiode is selected so that a light spot is radiated onto the photodiode. The position of the light spot formed on the annular photodiode is in a corresponding relation to a rotational angle of a rotating shaft. The position detector detects the position of the light spot to detect such rotational angle.
摘要翻译： 光学旋转编码器技术领域本发明涉及用于光学地检测位置的光学旋转编码器。 在本发明的光学旋转编码器中，由半反射镜反射的光束进入偏转器，由此在沿某一方向偏转的同时被反射。 反射光束再次进入半反射镜。 来自半反射镜的透射光进入位置检测器，其中在环形光电二极管上形成光斑。 来自偏转器的反射光的路径形成具有两倍偏转器偏转角的垂直角的锥体。 在偏转角为0°的情况下，位置检测器垂直于反射光的光轴设置，并且环形光电二极管的中心与所述光轴重合。 选择偏转器和光电二极管之间的适当距离，使得光斑辐射到光电二极管上。 形成在环形光电二极管上的光点的位置与旋转轴的旋转角度成对应关系。 位置检测器检测光点的位置以检测这种旋转角度。
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公开(公告)号：US6054938A
公开(公告)日：2000-04-25
申请号：US21271
申请日：1998-02-10
CPC分类号： G01D5/34723
摘要： A detecting unit provided with an optical system is disposed away from a control unit formed by an electric circuit and an optical transmission/receiving means, and the detecting unit and the control unit are coupled through a transmission optical fiber. The control unit transmits to the detecting unit through the optical fiber a light wave which was subjected to the intensity modulation by a sinusoidal wave of a predetermined frequency. The transmitted light wave is branched into at least two branched optical paths within the detecting unit thereby to perform the phase modulation as to the respective light waves. The light waves passed through the respective branched optical paths are subjected to the phase modulation by the sinusoidal waves which differ in phase 1/4 period by 1/4 period from one another according to a position on a straight line or a rotation angle of a subject to be detected. Then, the light waves thus subjected to the intensity modulation are coupled to a single transmission optical fiber through the branched optical paths and transmitted to the control unit through the transmission optical fiber. In the control unit, the modulated light wave is received and subjected to the phase detection, thereby to calculate and output the position and the rotation angle in accordance with the phase modulation amount of the received light wave.
摘要翻译： 设置有光学系统的检测单元远离由电路和光学发送/接收装置形成的控制单元设置，并且检测单元和控制单元通过传输光纤耦合。 控制单元通过光纤向检测单元发送经过预定频率的正弦波进行强度调制的光波。 透射光波被分支到检测单元内的至少两个分支光路中，从而对相应的光波进行相位调制。 通过相应的分支光路的光波由相位相差+ E，fra 1/4 + EE周期+ E的正弦波进行相位调制，根据 待检测对象的直线或旋转角度的位置。 然后，经受强度调制的光波通过分支光路耦合到单个传输光纤，并通过传输光纤传输到控制单元。 在控制单元中，调制光波被接收并进行相位检测，从而根据接收的光波的相位调制量来计算和输出位置和旋转角度。
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公开(公告)号：US5426296A
公开(公告)日：1995-06-20
申请号：US190786
申请日：1994-02-01
CPC分类号： G06K9/00046 , G07C9/00158
摘要： An irregular pattern input device includes an optical fiber bundle in which an entrance surface and an exit surface are respectively formed at both ends thereof. Lighting means emits irradiation light so as to provide a light pattern according to a convex portion of a subject in contact with the entrance surface, and according to a concave portion of the subject in no contact with the entrance surface. In this case, an angle of incidence of the irradiation light is set to be larger than a critical angle on an interface between a core portion of each optical fiber of the optical fiber bundle and the air. It is thereby possible to provide total reflection on the entrance surface in no contact with the concave portion of the subject, and non-total reflection on the entrance surface in contact with the convex portion of the subject, resulting in reflected light having a light pattern according to an irregular pattern. The resultant light pattern is inputted into photoelectric transforming means through the exit surface, and is transformed into electric information by the photoelectric transforming means.
摘要翻译： 不规则图案输入装置包括在其两端分别形成有入射面和出射面的光纤束。 照明装置发射照射光，以根据与入射面接触的被检体的凸部提供光图案，并且根据与入射面不接触的被检体的凹部。 在这种情况下，照射光的入射角被设定为大于光纤束的各光纤的芯部与空气的界面上的临界角。 由此，能够在与被检体的凹部不接触的入射面上提供全反射，并且与入射面的与被检体的凸部接触的非全反射，从而产生具有光图案的反射光 根据不规则的格局。 所得到的光图案通过出射面输入到光电变换装置中，并通过光电变换装置转换成电信息。
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公开(公告)号：US20130320201A1
公开(公告)日：2013-12-05
申请号：US14000736
申请日：2011-11-30
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。
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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。
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