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    • 2. 发明授权
    • Optical wave interference measuring apparatus
    • 光波干涉测量仪
    • US08059278B2
    • 2011-11-15
    • US12578997
    • 2009-10-14
    • Zongtao GeHideo KandaTakayuki SaitoNoboru Koizumi
    • Zongtao GeHideo KandaTakayuki SaitoNoboru Koizumi
    • G01B11/02
    • G01M11/0271G01M11/025
    • The relative position of a test surface is sequentially changed from a reference position where a surface central axis is aligned with a measurement optical axis such that the measurement optical axis is sequentially moved to a plurality of annular regions obtained by dividing the test surface in a diametric direction. The test surface is rotated on a rotation axis whenever the relative position is changed. Measurement light composed of a plane wave is radiated to the rotating test surface, and a one-dimensional image sensor captures interference fringes at each of a plurality of rotational positions. The shape information of each annular region is calculated on the basis of the captured interference fringes at each rotational position, and the shape information is connected to calculate the shape information of the entire measurement region.
    • 测试表面的相对位置从表面中心轴与测量光轴对准的参考位置顺序地改变,使得测量光轴顺序地移动到通过将测试表面分成直径而获得的多个环形区域 方向。 每当相对位置改变时,测试表面都会在旋转轴上旋转。 由平面波构成的测量光被照射到旋转测试表面,并且一维图像传感器在多个旋转位置中的每一个处捕获干涉条纹。 基于每个旋转位置处的捕获的干涉条纹来计算每个环形区域的形状信息,并且形状信息被连接以计算整个测量区域的形状信息。
    • 3. 发明授权
    • Optical wave interference measuring apparatus
    • 光波干涉测量仪
    • US07982882B2
    • 2011-07-19
    • US12571993
    • 2009-10-01
    • Zongtao GeHideo KandaTakayuki SaitoNoboru Koizumi
    • Zongtao GeHideo KandaTakayuki SaitoNoboru Koizumi
    • G01B11/02
    • G01B11/2441G01M11/025G01M11/0271
    • The relative position of a test surface is sequentially changed from a reference position where a surface central axis is aligned with a measurement optical axis such that the measurement optical axis is sequentially moved to a plurality of annular regions obtained by dividing the test surface in a diametric direction. The test surface is rotated on a rotation axis whenever the relative position is changed. Measurement light that travels while being converged by a Mirau objective interference optical system is radiated to the rotating test surface, and a one-dimensional image sensor captures interference fringes at each of a plurality of rotational positions. The shape information of each annular region is calculated on the basis of the captured interference fringes at each rotational position, and the shape information is connected to calculate the shape information of the entire measurement region.
    • 测试表面的相对位置从表面中心轴与测量光轴对准的参考位置顺序地改变,使得测量光轴顺序地移动到通过将测试表面分成直径而获得的多个环形区域 方向。 每当相对位置改变时,测试表面都会在旋转轴上旋转。 在由Mirau物镜干涉光学系统会聚的同时行进的测量光被照射到旋转测试表面,并且一维图像传感器在多个旋转位置的每一个处捕获干涉条纹。 基于每个旋转位置处的捕获的干涉条纹来计算每个环形区域的形状信息,并且形状信息被连接以计算整个测量区域的形状信息。
    • 4. 发明申请
    • OPTICAL WAVE INTERFERENCE MEASURING APPARATUS
    • 光波干扰测量装置
    • US20100091299A1
    • 2010-04-15
    • US12578997
    • 2009-10-14
    • Zongtao GEHideo KandaTakayuki SaitoNoboru Koizumi
    • Zongtao GEHideo KandaTakayuki SaitoNoboru Koizumi
    • G01B11/24
    • G01M11/0271G01M11/025
    • The relative position of a test surface is sequentially changed from a reference position where a surface central axis is aligned with a measurement optical axis such that the measurement optical axis is sequentially moved to a plurality of annular regions obtained by dividing the test surface in a diametric direction. The test surface is rotated on a rotation axis whenever the relative position is changed. Measurement light composed of a plane wave is radiated to the rotating test surface, and a one-dimensional image sensor captures interference fringes at each of a plurality of rotational positions. The shape information of each annular region is calculated on the basis of the captured interference fringes at each rotational position, and the shape information is connected to calculate the shape information of the entire measurement region.
    • 测试表面的相对位置从表面中心轴与测量光轴对准的参考位置顺序地改变,使得测量光轴顺序地移动到通过将测试表面分成直径而获得的多个环形区域 方向。 每当相对位置改变时,测试表面都会在旋转轴上旋转。 由平面波构成的测量光被照射到旋转测试表面,并且一维图像传感器在多个旋转位置中的每一个处捕获干涉条纹。 基于每个旋转位置处的捕获的干涉条纹来计算每个环形区域的形状信息,并且形状信息被连接以计算整个测量区域的形状信息。
    • 5. 发明授权
    • Imaging lens for interferometric device
    • 用于干涉仪的成像透镜
    • US06297916B1
    • 2001-10-02
    • US09523694
    • 2000-03-13
    • Hideo KandaNoboru Koizumi
    • Hideo KandaNoboru Koizumi
    • G02B912
    • G02B9/12
    • An imaging lens having three lens groups is designed so that image aberrations of an object at infinity (i.e, a collimated beam) and of an object at a finite distance are very well-corrected so that the imaging lens is particularly suitable for use imaging interference patterns formed on a screen by a grazing incidence interferometer. The imaging lens is composed of the following lens components, in successive order from the most object side: a first lens component having an overall meniscus shape with its concave surface on the object side, a second lens component having negative or positive refractive power, and a third lens component of positive or negative refractive power. The refractive power of the second lens component and the third lens component are always of opposite sign, and specified conditions are satisfied in order to assure high quality imaging. Each lens component may be formed of a single lens element or of multiple lens elements.
    • 具有三个透镜组的成像透镜被设计成使得无限远(即,准直光束)的物体和有限距离处的物体的图像像差被非常好地校正,使得成像透镜特别适合于使用成像干涉 通过掠入射干涉仪在屏幕上形成的图案。 成像透镜从最物体侧依次顺序地由以下的透镜部件构成:第一透镜部件,其具有整体弯月面形状,其物体侧具有凹面,具有正或正屈光力的第二透镜部件,以及 具有正或负屈光力的第三透镜部件。 第二透镜部件和第三透镜部件的屈光力总是相反的,并且为了确保高质量的成像而满足规定的条件。 每个透镜部件可以由单个透镜元件或多个透镜元件形成。
    • 6. 发明授权
    • Eyepiece for picture display device
    • 目镜用于图像显示装置
    • US06414798B1
    • 2002-07-02
    • US09638064
    • 2000-08-15
    • Noboru Koizumi
    • Noboru Koizumi
    • G02B300
    • G02B27/4211G02B25/001G02B27/0037G02B27/4216
    • An eyepiece, consisting of two lens groups, is lighter in weight and more compact than known previously, yet has aberrations that are favorably corrected despite the eyepiece having a large exit pupil diameter. This is accomplished by including a predetermined diffraction optical element (DOE) surface on one of the optical elements in order to minimize the number of lens elements that are required, while simultaneously ensuring the image is of high quality. Thus, a high quality image may be observed even while walking, riding in a vehicle, or the like. In order from the eye side, the first lens group has positive refractive power with its surface nearest the eye side being convex and its surface farthest from the eye side being concave. The first lens group may be formed of a single lens element or a pair of lens elements that are cemented together. Among the two lens groups, the eyepiece includes at least one negative lens element and at least two positive lens elements. Preferably, specified conditions are satisfied to ensure that the eyepiece is compact, yet well-corrected for aberrations.
    • 由两个透镜组组成的目镜比以前更重,更紧凑,但是尽管目镜具有大的出射光瞳直径,但是具有有利地校正的像差。 这通过在光学元件之一上包括预定的衍射光学元件(DOE)表面来实现,以便最小化所需的透镜元件的数量,同时确保图像具有高质量。 因此,即使在行走,搭乘车辆等时也可以观察到高质量的图像。 从眼睛侧起,第一透镜组具有正折射力,其最靠近眼睛侧的表面是凸的,并且其距离眼睛侧最远的表面是凹形的。 第一透镜组可以由单个透镜元件或一对胶合在一起的透镜元件形成。 在两个透镜组中,目镜包括至少一个负透镜元件和至少两个正透镜元件。 优选地,满足特定条件以确保目镜紧凑,但是对于像差进行了良好的校正。
    • 8. 发明授权
    • Image recognition apparatus
    • 图像识别装置
    • US5317419A
    • 1994-05-31
    • US909631
    • 1992-07-07
    • Noboru Koizumi
    • Noboru Koizumi
    • H04N1/40
    • H04N1/40062
    • An image processor for processing image signals corresponding to an original image including a character image region, a halftone image region, and a continuous tone image region. The image processor includes a generator of a first kind of image signals corresponding to the character image region, and of a second kind of image signals corresponding to the halftone image region and the continuous tone image region, according to the image signals; a processor of the first image signals; and a processor of the second image signals. The generator includes a converter to convert the image signals into binarized image signals, which express the image with a black pixel and a white pixel, according to the density level of respective pixels of the image; a recognition circuit that recognizes partial image regions, each of which has a predetermined number of pixels in the image, as black regions when more than a predetermined number of the black pixels exist in each of the partial image regions, so that the original image comprises at least one of the group of the black regions and the group of a non-black regions; and an estimation circuit of a continuous length of the black regions.
    • 一种用于处理与包括字符图像区域,半色调图像区域和连续色调图像区域的原始图像相对应的图像信号的图像处理器。 根据图像信号,图像处理器包括对应于字符图像区域的第一种图像信号的发生器和对应于半色调图像区域和连续色调图像区域的第二种图像信号; 第一图像信号的处理器; 和第二图像信号的处理器。 发生器包括转换器,用于根据图像的各个像素的浓度水平将图像信号转换为二进制图像信号,该图像信号用黑色像素和白色像素表示图像; 识别电路,其识别在每个部分图像区域中存在大于预定数量的黑色像素的黑色区域中的每个具有图像中的预定数量的像素的部分图像区域,使得原始图像包括 黑色区域和非黑色区域组中的至少一个; 以及黑色区域的连续长度的估计电路。
    • 9. 发明授权
    • Eyepiece lens for a display image observation device
    • 用于显示图像观察装置的目镜
    • US06181479B2
    • 2001-01-30
    • US09391043
    • 1999-09-16
    • Noboru Koizumi
    • Noboru Koizumi
    • G02B2500
    • G02B25/001
    • An eyepiece lens for a display image observation device is disclosed that has only six lens elements with refractive power, in the order from the eye side, as follows: a first lens group G1 formed of two lens elements L1 and L2, both of positive refractive power, with the lens element L1 on the eye side being of positive meniscus shape with its convex surface on the eye side; a second lens group G2 formed of two lens elements L3 and L4 which are either separated by air or cemented together, the first of the lens elements on the eye side (i.e., L3) having negative refractive power and the other having positive refractive power; and a third lens group G3 formed of two lens elements which are either separated by air or cemented together, the first of the lens elements on the eye side (i.e., L5) having positive refractive power and the other having negative refractive power. Preferably, one of the surfaces of the lens elements in the first lens group G1 is aspherical, and specified conditions are satisfied in order to achieve favorable aberration correction in an eyepiece lens that is compact.
    • 公开了一种用于显示图像观察装置的目镜透镜,其具有如下从眼睛的顺序具有屈光力的六个透镜元件:由两个透镜元件L1和L2形成的第一透镜组G1,正折射率 功率,眼睛侧的透镜元件L1具有正的弯月面形状,其凸面在眼睛侧; 由空气分离或粘合在一起的两个透镜元件L3和L4形成的第二透镜组G2,眼睛侧的第一透镜元件(即,L3)具有负折射光焦度,另一个具有正折射光焦度; 以及由空气分离或粘合在一起的两个透镜元件形成的第三透镜组G3,眼睛侧的第一透镜元件(即,L5)具有正的折射光焦度,另一个具有负折光力。 优选地,第一透镜组G1中的透镜元件的一个表面是非球面的,并且为了在紧凑的目镜中实现良好的像差校正,满足特定条件。