公开(公告)号：US08649095B2

公开(公告)日：2014-02-11

申请号：US13143928

申请日：2010-12-28

申请人： Takamasa Ando ,  Tsuguhiro Korenaga

发明人： Takamasa Ando ,  Tsuguhiro Korenaga

IPC分类号： G02B27/44 ,  G02B3/08

CPC分类号： G02B5/1895 ,  G02B13/0055

摘要： A diffraction grating lens according to the present invention includes a lens body and a diffraction grating provided on the surface of the lens body, the diffraction grating including a plurality of annular zones having slopes inclined along a width direction and a plurality of step surfaces respectively located between the plurality of annular zones. At least one of the plurality of annular zones is light-transmissive across its entire area along the width direction, and in the at least one annular zone, a light transmittance near at least one of two ends along the width direction is smaller than a light transmittance near a central portion along the width direction.

摘要翻译： 根据本发明的衍射光栅透镜包括透镜体和设置在透镜体的表面上的衍射光栅，衍射光栅包括多个具有沿宽度方向倾斜的斜面的环形区域和分别位于多个台阶表面的多个台阶表面 在多个环形区域之间。 多个环形区域中的至少一个沿着宽度方向穿过其整个区域是透光的，并且在至少一个环形区域中，沿着宽度方向的两端中的至少一端附近的透光率小于光 沿着宽度方向的中心部附近的透射率。

公开(公告)号：US08441728B2

公开(公告)日：2013-05-14

申请号：US13000430

申请日：2009-12-18

申请人： Tsuguhiro Korenaga ,  Takamasa Ando

发明人： Tsuguhiro Korenaga ,  Takamasa Ando

IPC分类号： G02B5/18

CPC分类号： G02B13/003 ,  G02B5/1814 ,  G02B13/06 ,  G02B27/4211

摘要： A diffractive lens 11 that includes: a lens base 18, which has a second surface 13 with first and second groups of diffraction grating portions 20 and 21; and a protective coating 17, which is arranged on the first group of diffraction grating portions 20. The first group of diffraction grating portions 20 has a first group of diffraction steps and the second group of diffraction grating portions 21 has a second group of diffraction steps, which is lower in height than the first group of diffraction steps. One of the respective materials of the base 18 and the protective coating 17 has a higher refractive index and a greater Abbe number than the other material. And the second group of diffraction steps is not covered with the protective coating 17.

摘要翻译： 衍射透镜11，其包括：透镜基部18，其具有带有第一和第二组衍射光栅部分20和21的第二表面13; 以及设置在第一组衍射光栅部分20上的保护涂层17.第一组衍射光栅部分20具有第一组衍射级，第二组衍射光栅部分21具有第二组衍射级 ，其高度比第一组衍射级高。 基部18和保护涂层17的各个材料之一具有比其他材料更高的折射率和更大的阿贝数。 第二组衍射步骤未被保护涂层17覆盖。

公开(公告)号：US08284388B2

公开(公告)日：2012-10-09

申请号：US13308097

申请日：2011-11-30

申请人： Takamasa Ando ,  Tsuguhiro Korenaga

发明人： Takamasa Ando ,  Tsuguhiro Korenaga

IPC分类号： G01B9/00

CPC分类号： G01M11/0228 ,  G02B5/189

摘要： A measurement method and an evaluating apparatus are provided which accurately evaluate the light amount of a spot beam, the diffraction efficiency, and the intensity distribution in the optical axis direction by detecting even a weak diffracted beam in an arbitrary wavelength range converged by a diffraction optical element as an imaging lens. Light emitted from a white light source passes through a wavelength band-pass filter and is diaphragmed by a pinhole slit. The resultant light is paralleled by a collimator lens and enters a diffraction optical element as an imaging lens. The light getting out from the diffraction optical element is converged to be a spot beam, is magnified by a microscope 18, and is then projected on a CCD. A distance changing member changes the distance between the CCD and the diffraction optical element, and then, the intensity distribution in the optical axis direction is measured.

摘要翻译： 提供一种测量方法和评估装置，通过检测由衍射光学会聚的任意波长范围内的弱衍射光束，可以精确地评估光束的光量，衍射效率和光轴方向的强度分布 元素作为成像透镜。 从白色光源发射的光通过波长带通滤光器，并被针孔狭缝隔开。 所得到的光由准直透镜并联，并且作为成像透镜进入衍射光学元件。 从衍射光学元件出射的光会聚成点光束，用显微镜18放大，然后投射到CCD上。 距离改变构件改变CCD与衍射光学元件之间的距离，然后测量光轴方向上的强度分布。

公开(公告)号：US20120140209A1

公开(公告)日：2012-06-07

申请号：US13308097

申请日：2011-11-30

申请人： Takamasa ANDO ,  Tsuguhiro Korenaga

发明人： Takamasa ANDO ,  Tsuguhiro Korenaga

IPC分类号： G01B9/00

CPC分类号： G01M11/0228 ,  G02B5/189

摘要： A measurement method and an evaluating apparatus are provided which accurately evaluate the light amount of a spot beam, the diffraction efficiency, and the intensity distribution in the optical axis direction by detecting even a weak diffracted beam in an arbitrary wavelength range converged by a diffraction optical element as an imaging lens. Light emitted from a white light source passes through a wavelength band-pass filter and is diaphragmed by a pinhole slit. The resultant light is paralleled by a collimator lens and enters a diffraction optical element as an imaging lens. The light getting out from the diffraction optical element is converged to be a spot beam, is magnified by a microscope 18, and is then projected on a CCD. A distance changing member changes the distance between the CCD and the diffraction optical element, and then, the intensity distribution in the optical axis direction is measured.

摘要翻译： 提供一种测量方法和评估装置，通过检测由衍射光学会聚的任意波长范围内的弱衍射光束，可以精确地评估光束的光量，衍射效率和光轴方向的强度分布 元素作为成像透镜。 从白色光源发射的光通过波长带通滤光器，并被针孔狭缝隔开。 所得到的光由准直透镜并联，并且作为成像透镜进入衍射光学元件。 从衍射光学元件出射的光会聚成点光束，用显微镜18放大，然后投射到CCD上。 距离改变构件改变CCD与衍射光学元件之间的距离，然后测量光轴方向上的强度分布。

公开(公告)号：US07924214B2

公开(公告)日：2011-04-12

申请号：US12455851

申请日：2009-06-08

申请人： Takamasa Ando

发明人： Takamasa Ando

IPC分类号： G01S13/42 ,  G01S13/93

CPC分类号： H01Q21/0037 ,  G01S3/74 ,  G01S13/345 ,  G01S13/4463 ,  G01S13/931 ,  G01S2013/9325 ,  G01S2013/9346 ,  G01S2013/935 ,  G01S2013/9353 ,  G01S2013/9375

摘要： In an azimuth detecting apparatus, a receiver includes antenna elements arranged at predetermined intervals d. A first signal producer produces, based on reception signals generated by the antenna elements, first signals which are equivalent to signals generated by antenna elements arranged at first intervals d1, d1 being an integral multiple of d. A second signal producer produces, based on the reception signals, second signals which are equivalent to signals generated by antenna elements arranged at second intervals d2, d2 being an integral multiple of d and greater than d1. A first azimuth detector detects, within a first azimuth detection area whose angular range is defined by d1, the azimuth of the target based on the first signals. A second azimuth detector detects, within a second azimuth detection area whose angular range is defined by d2, the azimuth of the target based on the second signals.

摘要翻译： 在方位检测装置中，接收机包括以预定间隔d布置的天线元件。 第一信号发生器基于由天线元件产生的接收信号产生等效于以第一间隔d1，d1为d的整数倍的天线元件生成的信号的第一信号。 第二信号发生器基于接收信号产生等效于以第二间隔d2，d2为d并且大于d1的整数倍的天线元件生成的信号的第二信号。 第一方位检测器在角度范围由d1定义的第一方位角检测区域内，基于第一信号检测目标的方位角。 第二方位检测器在第二方位检测区域内检测其角度范围由d2定义的基于第二信号的目标的方位角。

公开(公告)号：US20100110547A1

公开(公告)日：2010-05-06

申请号：US12524040

申请日：2008-01-21

申请人： Takamasa Ando ,  Tsuguhiro Korenaga

发明人： Takamasa Ando ,  Tsuguhiro Korenaga

IPC分类号： G02B27/44 ,  G02B13/18

CPC分类号： G02B5/1895 ,  G02B27/0037 ,  G02B27/4211 ,  G02B27/4216

摘要： In a refraction lens having an aspheric shape formed thereon and having a positive power, a diffraction grating is formed on at least one of the faces of the refraction lens. In order to reduce the curvature of field and the chromatic aberration in a well-balanced manner, the zonal pitch of the diffraction grating is constituted so as to satisfy the following conditional expression. [ eq .  19 ] 0.21   m 2  v d  λ  f h max

摘要翻译： 在其上形成有正功率的非球面形状的折射透镜中，在折射透镜的至少一个面上形成衍射光栅。 为了以良好平衡的方式减小曲率和色差，衍射光栅的纬向间距构成为满足以下条件表达式。 [eq。 （19）这里，Λmin是最小区域间距12; m是衍射的顺序; ＆ngr; d是相对于d线的透镜基板材料的阿贝数; λ是波长; f是有效的焦距; 并且hmax是形成衍射光栅的面的有效半径13。

公开(公告)号：US20090303107A1

公开(公告)日：2009-12-10

申请号：US12455900

申请日：2009-06-09

申请人： Takamasa Ando

发明人： Takamasa Ando

IPC分类号： G01S13/08

CPC分类号： G01S13/931 ,  G01S3/74 ,  G01S7/35 ,  G01S13/34 ,  G01S13/42 ,  G01S2013/9325 ,  G01S2013/9346 ,  G01S2013/935 ,  G01S2013/9353 ,  G01S2013/9375 ,  H01Q21/00

摘要： In an azimuth detecting apparatus, a receiver includes a plurality of first antenna elements and a second antenna element. The first antenna elements are arranged at first intervals d1 to form an array. The second antenna element is arranged to define a second interval d2 between itself and one of the first antenna elements which is located at an end of the array, where d2 is less than d1. A first azimuth detector detects, within a first azimuth detection area whose angular range is defined by d1, the azimuth of a target based on the signals generated by all the first antenna elements. A second azimuth detector detects, within a second azimuth detection area whose angular range is defined by d2, the azimuth of the target based on the signals generated by the second antenna element and the first antenna element located at the end of the array.

摘要翻译： 在方位检测装置中，接收机包括多个第一天线元件和第二天线元件。 第一天线元件以第一间隔d1布置以形成阵列。 第二天线元件被布置成在其与位于阵列的端部处的第一天线元件中的一个之间限定第二间隔d2，其中d2小于d1。 第一方位检测器基于由所有第一天线元件产生的信号，在由角度范围由d1定义的第一方位角检测区域内检测目标的方位角。 第二方位检测器基于由位于阵列末端的第二天线元件和第一天线元件产生的信号，在由d2限定角度范围的第二方位检测区域内检测目标的方位角。

公开(公告)号：US20090303105A1

公开(公告)日：2009-12-10

申请号：US12455851

申请日：2009-06-08

申请人： Takamasa Ando

发明人： Takamasa Ando

IPC分类号： G01S13/08

CPC分类号： H01Q21/0037 ,  G01S3/74 ,  G01S13/345 ,  G01S13/4463 ,  G01S13/931 ,  G01S2013/9325 ,  G01S2013/9346 ,  G01S2013/935 ,  G01S2013/9353 ,  G01S2013/9375

摘要： In an azimuth detecting apparatus, a receiver includes antenna elements arranged at predetermined intervals d. A first signal producer produces, based on reception signals generated by the antenna elements, first signals which are equivalent to signals generated by antenna elements arranged at first intervals d1, d1 being an integral multiple of d. A second signal producer produces, based on the reception signals, second signals which are equivalent to signals generated by antenna elements arranged at second intervals d2, d2 being an integral multiple of d and greater than d1. A first azimuth detector detects, within a first azimuth detection area whose angular range is defined by d1, the azimuth of the target based on the first signals. A second azimuth detector detects, within a second azimuth detection area whose angular range is defined by d2, the azimuth of the target based on the second signals.

摘要翻译： 在方位检测装置中，接收机包括以预定间隔d布置的天线元件。 第一信号发生器基于由天线元件产生的接收信号产生等效于以第一间隔d1，d1为d的整数倍的天线元件生成的信号的第一信号。 第二信号发生器基于接收信号产生等效于以第二间隔d2，d2为d并且大于d1的整数倍的天线元件生成的信号的第二信号。 第一方位检测器在角度范围由d1定义的第一方位角检测区域内，基于第一信号检测目标的方位角。 第二方位检测器在第二方位检测区域内检测其角度范围由d2定义的基于第二信号的目标的方位角。

公开(公告)号：US20090180186A1

公开(公告)日：2009-07-16

申请号：US12295525

申请日：2007-04-05

申请人： Takamasa Ando ,  Tsuguhiro Korenaga ,  Masa-aki Suzuki ,  Yuka Okada

发明人： Takamasa Ando ,  Tsuguhiro Korenaga ,  Masa-aki Suzuki ,  Yuka Okada

IPC分类号： G02B5/18 ,  G02B1/00 ,  B05D5/06

CPC分类号： G02B1/14 ,  B29C39/025 ,  B29C39/026 ,  B29L2011/00 ,  G02B1/105 ,  G02B1/111 ,  G02B5/18 ,  G02B5/1847

摘要： A diffractive optical element that can maintain transparency and be molded easily, and a method for manufacturing the same are provided.A diffractive optical element (10) includes a substrate (11), a protective film (13a, 13b), and a diffraction grating (12a, 12b) disposed between the substrate (11) and the protective film (13a, 13b), wherein the diffraction grating (12a, 12b) is formed of a composite material containing a resin and inorganic particles, a volume ratio of the inorganic particles with respect to the composite material is equal to or smaller than 50% by volume, and the diffraction grating (12a, 12b) has a thickness of equal to or smaller than 20 μm. Since the diffractive optical element (10) uses the composite material containing the resin and the inorganic particles as a material for the diffraction grating (12a, 12b), which is relatively difficult to process, the moldability improves compared with the conventional case of using glass, etc.

摘要翻译： 可以容易地保持透明性和模制性的衍射光学元件及其制造方法。 衍射光学元件（10）包括基板（11），保护膜（13a，13b）和设置在基板（11）和保护膜（13a，13b）之间的衍射光栅（12a，12b），其中 衍射光栅（12a，12b）由包含树脂和无机颗粒的复合材料形成，无机颗粒相对于复合材料的体积比等于或小于50体积％，衍射光栅 12a，12b）具有等于或小于20μm的厚度。 由于衍射光学元件（10）使用包含树脂和无机颗粒的复合材料作为相对难以处理的衍射光栅（12a，12b）的材料，与使用玻璃的常规情况相比，成型性提高 等等

公开(公告)号：US09110152B2

公开(公告)日：2015-08-18

申请号：US13289077

申请日：2011-11-04

申请人： Takamasa Ando ,  Kazuma Natsume

发明人： Takamasa Ando ,  Kazuma Natsume

IPC分类号： G01S7/40 ,  G01S7/35 ,  G01S13/34 ,  G01S13/93

CPC分类号： G01S7/4056 ,  G01S7/352 ,  G01S13/345 ,  G01S13/931

摘要： A peak detecting threshold determining method is provided which determines a peak detecting threshold which is used by an FMCW radar in detecting a peak frequency component which appears as representing a target object in a frequency spectrum. A CW radar wave is transmitted to produce a CW noise spectrum. An offset is added to frequency components in a high-frequency region of the CW noise spectrum to define a first distribution as a value of the peak detecting threshold. This enables the value of the peak detecting threshold in the high-frequency region to be determined with high precision by reflecting a receiver noise containing a leakage noise.

摘要翻译： 提供了一种峰值检测阈值确定方法，其确定由FMCW雷达在检测表现为频谱中的目标对象的峰值频率分量时使用的峰值检测阈值。 传输CW雷达波以产生CW噪声谱。 将偏移量加到CW噪声频谱的高频区域中的频率分量中，以将第一分布定义为峰值检测阈值的值。 这使得通过反映包含泄漏噪声的接收机噪声，可以高精度地确定高频区域中的峰值检测阈值。