公开(公告)号：US5347370A

公开(公告)日：1994-09-13

申请号：US174526

申请日：1993-12-28

申请人： Mitsuhiro Ishihara ,  Mineo Kubota ,  Takashi Kanda ,  Toru Kitta ,  Mitsuo Tsuchiya

发明人： Mitsuhiro Ishihara ,  Mineo Kubota ,  Takashi Kanda ,  Toru Kitta ,  Mitsuo Tsuchiya

IPC分类号： H04N1/401 ,  G06K9/02

CPC分类号： H04N1/401

摘要： Shading correction is effected by partitioning a white standard surface into a plurality of scanning blocks having the same number of scanning lines, scanning the standard surface by block to determine block median values in a first processing stage, determining global median values from the block median values in a second processing stage, and subjecting objective image data read from a given original image to arithmetic such as proportioning calculation. With the two-stage processing, shading distortion caused due to nonuniformity in sensitivity of an image scanning system can be rationally and reliably corrected to a high degree with a simple processing circuit.

摘要翻译： 通过将白色标准表面分割成具有相同数目的扫描线的多个扫描块，通过逐块扫描标准表面以确定第一处理阶段中的块中值，从块中值确定全局中值来实现阴影校正 在第二处理阶段中，对从给定原始图像读取的目标图像数据进行比例计算等算术。 通过两级处理，可以通过简单的处理电路高度可靠地校正由于图像扫描系统的灵敏度不均匀引起的阴影失真。

公开(公告)号：US07092093B2

公开(公告)日：2006-08-15

申请号：US10494374

申请日：2003-03-03

申请人： Mitsuhiro Ishihara

发明人： Mitsuhiro Ishihara

IPC分类号： G01J4/00

CPC分类号： G01B11/25 ,  G01B11/24 ,  G01J4/04

摘要： A polarization bearing detection type two-dimensional light reception timing detecting device for implementing a fast surface shape measurement that can accommodate an animal body measurement, and a surface shape measuring device using it. The polarization bearing of a detection light is turned in synchronization with slit light scanning, and the polarization bearing is two-dimensionally recorded by two sets of analyzers and storage type image detectors in a crossed Nicols arrangement, and thereby it is possible to determine, with only one-time imaging, timing at which a slit light is beamed into respected pixels in the storage type image detectors.

摘要翻译： 一种用于实现能够适应动物身体测量的快速表面形状测量的偏振轴承检测型二维光接收定时检测装置，以及使用它的表面形状测量装置。 检测光的偏振轴承与狭缝光扫描同步地旋转，偏振轴承由两组分析仪和存储型图像检测器以十字尼科尔布置二维记录，从而可以用 只有一次成像，狭缝光在存储型图像检测器中被照射到相关像素中的定时。

公开(公告)号：US5687031A

公开(公告)日：1997-11-11

申请号：US603614

申请日：1996-02-21

申请人： Mitsuhiro Ishihara

发明人： Mitsuhiro Ishihara

IPC分类号： G01B11/24 ,  G06T1/00 ,  G02B7/02

CPC分类号： G01B11/24

摘要： A three-dimensional image acquisition apparatus for acquiring a plurality of images of an object with the positions in focus shifted at predetermined step distances used for measuring the three-dimensional shape of an object. This three-dimensional image acquisition apparatus comprises an image forming lens, a two-dimensional image pickup means for converting the optical image of an object into electric signals and outputting the electric signals, at least one rotary support which has a plurality of transparent plates differing in thickness or refractive index or both secured thereto and is disposed so that when it is rotated the transparent plates in turn intersects the optical axis between the image forming lens and the object or the image forming lens and the two-dimensional image pickup means, and at least one drive means for intermittently or continuously rotating the rotary support. By this three-dimensional image acquisition apparatus, the image can be acquired in considerably less time with a higher positional accuracy.

摘要翻译： 一种三维图像获取装置，用于获取具有焦点位置的物体的多个图像，并以用于测量物体的三维形状的预定步距离移动。 该三维图像获取装置包括图像形成透镜，用于将物体的光学图像转换为电信号并输出​​电信号的二维图像拾取装置，至少一个旋转支架，其具有多个不同的透明板 其厚度或折射率或两者都固定在其上并且被设置成使得当透明板旋转时，透明板依次与图像形成透镜和物体或图像形成透镜和二维图像拾取装置之间的光轴相交，并且 用于间歇地或连续地旋转所述旋转支撑件的至少一个驱动装置。 通过这种三维图像获取装置，可以以更高的位置精度在相当少的时间内获取图像。

公开(公告)号：US20050200917A1

公开(公告)日：2005-09-15

申请号：US11061724

申请日：2005-02-22

申请人： Yoshinori Kanesaka ,  Toshiaki Oshima ,  Hiroshi Yabe ,  Yutaka Tanaka ,  Mitsuhiro Ishihara

发明人： Yoshinori Kanesaka ,  Toshiaki Oshima ,  Hiroshi Yabe ,  Yutaka Tanaka ,  Mitsuhiro Ishihara

IPC分类号： G03B27/50 ,  G03B27/54 ,  G06T1/00 ,  H04N1/04

CPC分类号： G03B27/62 ,  G03G15/607 ,  H04N1/0285 ,  H04N1/0315 ,  H04N1/0318 ,  H04N1/1017 ,  H04N1/1026 ,  H04N1/40056 ,  H04N2201/0418

摘要： In order to switch to a light source with a light amount corresponding to the type of original from among a plurality of light sources in a simplified structure without using a specific switching mechanism in reading a transmissive original with a photoelectric sensor while moving, there are provided a platen on which an original is mounted, a line sensor that performs photoelectric conversion on light from the original on the platen, a first carriage that moves along the platen and guides the light from the original to the line sensor, a first housing that stores and supports the first carriage to be movable along the platen, first driving means for moving the first carriage, a second carriage provided with a plurality of rod-shaped light-source lamps that applies light to the original, a second housing that stores and supports the second carriage to be movable along the platen and covers the platen, second driving means for moving the second carriage, and control means for controlling the first driving means, the second driving means and lighting of the plurality of light-source lamps, where the plurality of light-source lamps is spaced in parallel with one another in the moving direction of the second carriage, and due to a signal from means for selecting a single light-source lamp from the plurality of light-source lamps corresponding to the type of the original, the control means controls to move the first carriage from a standby position to a predetermined position, further move the second carriage from a standby position by an amount of movement set corresponding to the selected light-source lamp to position in the predetermined position, and then, move the first carriage and the second carriage at the same speed from the predetermined position to a reading start position of the original.

摘要翻译： 为了在简化的结构中切换到具有与多种光源中的原稿类型相对应的光量的光源，而不用在移动时用光电传感器读取透射原稿时使用特定的切换机构， 其上安装有原稿的压板，对来自原稿在压板上的光进行光电转换的线传感器，沿着压板移动并将光从原稿引导到线传感器的第一支架，存储 并且支撑第一托架能够沿着压板移动，第一驱动装置，用于移动第一托架;第二托架，设置有多个向原件施加光的杆状光源灯，第二壳体，其存储和支撑 所述第二托架能够沿着所述压板移动并且覆盖所述压板，用于移动所述第二托架的第二驱动装置和用于控制的控制装置 g是多个光源灯的第一驱动装置，第二驱动装置和点亮，其中多个光源灯在第二台架的移动方向上彼此平行地间隔开，并且由于信号 从用于从与原稿类型对应的多个光源灯中选择单个光源灯的装置，控制装置控制将第一托架​​从待机位置移动到预定位置，从而使第二托架从 通过与所选择的光源灯相对应的移动量定位在预定位置，然后以相同的速度将第一滑架和第二滑架从预定位置移动到第一滑架和第二滑架的读取开始位置 原版的。

公开(公告)号：US06399942B1

公开(公告)日：2002-06-04

申请号：US09461028

申请日：1999-12-15

申请人： Mitsuhiro Ishihara

发明人： Mitsuhiro Ishihara

IPC分类号： H01J314

CPC分类号： G02B21/0068 ,  G02B21/004

摘要： An active confocal image acquisition apparatus includes a confocal image acquisition system and a liquid crystal panel. The liquid crystal panel is disposed in the confocal image acquisition system so that its elements are aligned with elements of the detector. The light transmittance of elements of the liquid crystal panel is adjusted so as to make the intensities of reflection of all pixels (the values attained when the parts reflecting light are at or near the focused position) as close to a predetermined level as possible. By this configuration and method of using it, the active confocal image acquisition apparatus can perform accurate measurement if there are high-reflectance and low-reflectance parts together in the measuring field.

摘要翻译： 活性共焦图像获取装置包括共焦图像获取系统和液晶面板。 液晶面板设置在共焦图像采集系统中，使得其元件与检测器的元件对准。 调节液晶面板的元件的透光率，使得所有像素的反射强度（当反射光的部分在聚焦位置处于或接近聚焦位置时获得的值）尽可能接近预定水平。 通过该结构和使用方法，如果在测量场中存在高反射率和低反射率的部分，则活性共焦图像采集装置可以执行精确的测量。

公开(公告)号：US09041940B2

公开(公告)日：2015-05-26

申请号：US13610052

申请日：2012-09-11

申请人： Mitsuhiro Ishihara

发明人： Mitsuhiro Ishihara

IPC分类号： G01B11/30 ,  G01B11/24 ,  G02B21/00

CPC分类号： G01B11/24 ,  G02B21/0028 ,  G02B21/0044 ,  G02B21/006 ,  G02B21/008

摘要： According to one embodiment, a three-dimensional shape measuring apparatus includes at least an aperture plate that is provided with a plurality of confocal apertures which are two-dimensionally arranged to have a predetermined arrangement period, and an aperture plate displacement portion that displaces the aperture plate at a constant speed in a predetermined direction perpendicular to the optical axis direction. Further, the aperture plate is provided with a cover member which is moved integrally with the aperture plate and which includes a transparent body allowing the light beams from the light source to pass therethrough and to be irradiated to the plurality of confocal apertures, and protects the plurality of confocal apertures from dust. Further, an imaging optical system, by which each of reflected light beams is guided to a photo-detector, is designed in consideration of optical properties of the whole optical system including the transparent body of the cover member.

摘要翻译： 根据一个实施例，一种三维形状测量装置至少包括孔板，该孔板设置有二维排列成具有预定布置周期的多个共焦孔，以及孔径位移部分，其使孔径移动 在垂直于光轴方向的预定方向上以恒定的速度平板。 此外，孔板设置有与孔板一体地移动的盖构件，其包括允许来自光源的光束通过的透明体并照射到多个共焦孔，并且保护 多个共焦孔从灰尘。 此外，考虑到包括盖构件的透明体的整个光学系统的光学特性，设计了将每个反射光束引导到光电检测器的成像光学系统。

公开(公告)号：US5946100A

公开(公告)日：1999-08-31

申请号：US959491

申请日：1997-10-28

申请人： Mitsuhiro Ishihara

发明人： Mitsuhiro Ishihara

IPC分类号： G01B11/02 ,  G01B11/24

CPC分类号： G01B11/24 ,  G01B11/026

摘要： A three-dimensional shape measuring apparatus which has an improved arrayed confocal imaging system.A three-dimensional shape measuring apparatus using a confocal imaging system which has a new means for changing the distance in the Z direction between the object and the object-position-in-focus, instead of an object stage moved in the Z direction. This means shifts the object-position-in-focus in the Z direction by refraction. One means inserts a plurality of transparent flat plates between the objective lens and the object-position-in-focus in turn. Another means uses a transparent flat plate made of a material for which the refractive index changes according to the voltage applied and is disposed between the object and the object-position-in-focus. A three-dimensional shape measuring apparatus using a confocal imaging system wherein an image processor estimates the position from which the intensity of the reflected light for each pixel of the confocal image becomes maximum by interpolation of a value from the curve of the relationship between the intensity of light detected and the distance from the object-position-in-focus to an object point.

摘要翻译： 一种具有改进的阵列共焦成像系统的三维形状测量装置。 一种使用共焦成像系统的三维形状测量装置，其具有用于在物体和物体位置对焦之间改变Z方向上的距离的新装置，而不是在Z方向上移动的物体台。 这意味着通过折射在Z方向上移动物体位置对焦。 一种装置依次将多个透明平板插入物镜和物体位置对焦之间。 另一种方法是使用由折射率根据施加的电压而变化的材料制成的透明平板，并且设置在物体和物体位置对焦之间。 一种使用共焦成像系统的三维形状测量装置，其中，图像处理器通过根据强度之间的关系曲线的曲线插值来估计从共焦图像的每个像素的反射光的强度变为最大的位置 检测到的光和从物体位置对焦到物点的距离。

公开(公告)号：US09435982B2

公开(公告)日：2016-09-06

申请号：US13610112

申请日：2012-09-11

申请人： Mitsuhiro Ishihara

发明人： Mitsuhiro Ishihara

IPC分类号： G02B21/24 ,  G02B7/16 ,  G02B21/00

CPC分类号： G02B7/16 ,  G02B21/0024 ,  G02B21/248

摘要： According to one embodiment, a focus position changing apparatus is provided on an optical path of a confocal optical apparatus having a light source and an objective lens and is configured to change a focus position of the objective lens in an optical axis direction of the objective lens. The focus position changing apparatus includes at least a plurality of optical path changing pieces and a rotating plate. Each of the plurality of optical path changing pieces is differ from each other in at least one of a refractive index and a thickness. On the rotating plate, the plurality of optical path changing pieces is arranged along a rotation direction of the rotating plate so as to cross an optical axis of the objective lens. And an anti-reflection layer is formed in a predetermined region on a surface of the rotating plate on a side of the light source.

摘要翻译： 根据一个实施例，焦点位置改变装置设置在具有光源和物镜的共焦光学装置的光路上，并且被配置为在物镜的光轴方向上改变物镜的聚焦位置 。 聚焦位置改变装置至少包括多个光路改变件和旋转板。 多个光路改变片中的每一个在折射率和厚度中的至少一个方面彼此不同。 在旋转板上，多个光路改变片沿着旋转板的旋转方向布置成与物镜的光轴交叉。 并且在光源侧的旋转板的表面上的预定区域中形成防反射层。

公开(公告)号：US07733538B2

公开(公告)日：2010-06-08

申请号：US11061724

申请日：2005-02-22

申请人： Yoshinori Kanesaka ,  Toshiaki Oshima ,  Hiroshi Yabe ,  Yutaka Tanaka ,  Mitsuhiro Ishihara

发明人： Yoshinori Kanesaka ,  Toshiaki Oshima ,  Hiroshi Yabe ,  Yutaka Tanaka ,  Mitsuhiro Ishihara

IPC分类号： H04N1/04

CPC分类号： G03B27/62 ,  G03G15/607 ,  H04N1/0285 ,  H04N1/0315 ,  H04N1/0318 ,  H04N1/1017 ,  H04N1/1026 ,  H04N1/40056 ,  H04N2201/0418

摘要： There are provided a platen on which an original is mounted, a line sensor that performs photoelectric conversion on light from the original on the platen, a first carriage that moves along the platen and guides the light from the original to the line sensor, a first housing that stores and supports the first carriage to be movable along the platen, first driving means for moving the first carriage, a second carriage provided with a plurality of rod-shaped light-source lamps that applies light to the original, a second housing that stores and supports the second carriage to be movable along the platen and covers the platen, second driving means for moving the second carriage, and control means for controlling the first driving means, the second driving means and lighting of the plurality of light-source lamps.

摘要翻译： 设置有原稿安装在其上的压板，对来自原稿在压板上的光进行光电转换的线传感器，沿着压板移动并将光从原稿引导到线传感器的第一滑架，第一 存储和支撑第一托架以沿着压板移动的壳体，用于移动第一托架的第一驱动装置，设置有向原件施加光的多个杆状光源灯的第二托架;第二壳体， 存储和支撑第二滑架沿着压板移动并覆盖压板，用于移动第二滑架的第二驱动装置和用于控制第一驱动装置，第二驱动装置和多个光源灯的点亮的控制装置 。

公开(公告)号：US07126726B2

公开(公告)日：2006-10-24

申请号：US10151724

申请日：2002-05-21

申请人： Akira Takei ,  Makoto Shimizu ,  Mitsuhiro Ishihara ,  Tetsuya Aiyama ,  Masaki Oshima

发明人： Akira Takei ,  Makoto Shimizu ,  Mitsuhiro Ishihara ,  Tetsuya Aiyama ,  Masaki Oshima

IPC分类号： H04N1/04 ,  H04N1/46

CPC分类号： H04N1/1013

摘要： An image reading apparatus includes a platen, a frame for holding the platen, an installation device disposed to the frame so that the platen can be held in a substantially vertical state, and a scanning device for reading a document along the platen substantially vertically held. The reading of the document is carried out by elevating or lowering the scanning device.