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1. 发明申请

US20140043687A1 DIFFRACTION OPTICAL ELEMENT 审中-公开
标题翻译：衍射光学元件
公开(公告)号：US20140043687A1
公开(公告)日：2014-02-13
申请号：US14113935
申请日：2012-06-06
申请人： Akiko Murata , Yuka Okada , Tatsutoshi Suenaga , Takamasa Ando
发明人： Akiko Murata , Yuka Okada , Tatsutoshi Suenaga , Takamasa Ando
IPC分类号： G02B5/18
CPC分类号： G02B5/1866 , G02B5/1876 , G02B5/1895
摘要： A diffractive optical element includes: a body being composed of a first optical material and having a diffraction grating on the surface thereof; and an optical adjustment layer being composed of a second optical material and provided on the body so as to cover the diffraction grating. An envelope passing through the edge of the diffraction grating presents a curved surface, and the optical adjustment layer has a uniform thickness along the normal direction from the envelope.
摘要翻译：衍射光学元件包括：主体由第一光学材料组成并且在其表面上具有衍射光栅; 以及光学调整层，由第二光学材料构成，并且设置在本体上以覆盖衍射光栅。通过衍射光栅的边缘的信封呈现弯曲表面，并且光学调节层沿着从信封的法线方向具有均匀的厚度。

2. 发明申请

US20090180186A1 DIFFRACTIVE OPTICAL ELEMENT AND METHOD FOR MANUFACTURING SAME 有权
标题翻译：衍射光学元件及其制造方法
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

3. 发明授权

US08995058B2 Diffraction grating lens and imaging device in which the same is used 有权
$Diffraction grating lens and imaging device in which the same is used$
标题翻译：衍射光栅透镜和其中使用相同的成像装置
公开(公告)号：US08995058B2
公开(公告)日：2015-03-31
申请号：US13395585
申请日：2011-08-12
申请人： Yuka Okada , Takamasa Ando , Tsuguhiro Korenaga
发明人： Yuka Okada , Takamasa Ando , Tsuguhiro Korenaga
IPC分类号： G02B5/18 , G02B3/08 , G02B13/18 , G02B27/42
CPC分类号： G02B5/1814 , G02B5/1871 , G02B5/1895 , G02B13/18 , G02B27/4211 , G02B27/4216 , G02B27/4277
摘要： A diffraction grating lens according to the present invention is a diffraction grating lens 11 including: a lens body 12; and a plurality of diffraction steps relative to a base shape and a plurality of diffraction gratings 13 interposed between the diffraction steps, provided on a surface of the lens body 12. The lens body 12 is made of a first material having a refractive index n1(λ) at a used wavelength λ; the diffraction grating 13 is in contact with air; and the relationship of an inequality below is satisfied, where d is a design step length of the diffraction steps, and m is an order of diffraction. Each of the plurality of annular zones includes an intermediate portion and a pair of end portions sandwiching the intermediate portion along a radial direction, and in at least one of the plurality of annular zones, either one of a recess 18 and a protrusion 19 is provided in at least a portion of one of the pair of end portions, and the other one of the recess 18 and the protrusion 19 is provided in at least a portion of the other of the pair of end portions. Between two kinds of diffraction steps 17A and 17B of the diffraction grating 13, one is provided at a position where the phase difference from the base shape given the design wavelength λ0 is not 2 nmπ. 0.9 ⁢ d ≤ m · λ n 1 ⁡ ( λ ) - 1 ≤ 1.1 ⁢ d
摘要翻译：根据本发明的衍射光栅透镜是衍射光栅透镜11，包括：透镜体12; 以及设置在透镜主体12的表面上的相对于基部形状的多个衍射台和插入在衍射台之间的多个衍射光栅13.透镜体12由折射率为n1的第一材料 λ）; 衍射光栅13与空气接触; 并且满足以下不等式的关系，其中d是衍射级的设计步长，m是衍射级。多个环状区域中的每一个包括中间部分和沿着径向方向夹住中间部分的一对端部，并且在多个环形区域中的至少一个中设置有凹部18和突起19中的任一个在所述一对端部中的一个的至少一部分中，并且所述凹部18和所述突起19中的另一个设置在所述一对端部中的另一个的至少一部分中。在衍射光栅13的两种衍射台阶17A和17B之间，在与设计波长λ0的基底相位差不是2nm＆pgr的位置处设置一个。 0.9d≤m·λn 1⁡（λ）-1≤1.1d

4. 发明申请

US20120182618A1 DIFFRACTION GRATING LENS AND IMAGING DEVICE USING SAME 审中-公开
公开(公告)号：US20120182618A1
公开(公告)日：2012-07-19
申请号：US13498516
申请日：2011-08-11
申请人： Yuka Okada , Takamasa Ando , Tsuguhiro Korenaga
发明人： Yuka Okada , Takamasa Ando , Tsuguhiro Korenaga
IPC分类号： G02B27/44
CPC分类号： G02B5/1895 , G02B5/1871 , G02B13/18 , G02B27/4211 , G02B27/4277
摘要： A diffraction grating lens according to the present invention includes a lens body 171, and a diffraction grating which has been formed on the surface of the lens body 171 and which includes diffraction steps and concentric annular zones. Each annular zone is interposed between two adjacent ones of the diffraction steps. The lens body 171 is made of a first material that has a refractive index n1 (λ) at an operating wavelength λ. The diffraction grating is in contact with the air. At least one of the annular zones has one of a recess 11 and a protrusion 12 provided for at least a part of the inner end portion thereof and the other provided for at least a part of the outer end portion thereof, respectively. The diffraction grating lens satisfies the relation 0.9  d ≤ m · λ n 1  ( λ ) - 1 ≤ 1.1  d where d represents a designed step length of the diffraction step 14 and m represents an order of diffraction.
摘要翻译：根据本发明的衍射光栅透镜包括透镜体171和形成在透镜体171的表面上并且包括衍射台阶和同心环形区域的衍射光栅。每个环形区域介于两个相邻的衍射步骤之间。透镜体171由在工作波长λ处具有折射率n1（λ）的第一材料制成。衍射光栅与空气接触。环形区域中的至少一个具有设置在其内端部的至少一部分上的凹部11和突起12中的一个，另一个设置在其外端部的至少一部分上。衍射光栅透镜满足关系式，其中d表示衍射台阶14的设计台阶长度，m表示衍射次数。

5. 发明申请

US20120170121A1 DIFFRACTION GRATING LENS AND IMAGING DEVICE IN WHICH THE SAME IS USED 有权
标题翻译：其使用的衍射光栅和成像装置
公开(公告)号：US20120170121A1
公开(公告)日：2012-07-05
申请号：US13395585
申请日：2011-08-12
申请人： Yuka Okada , Takamasa Ando , Tsuguhiro Korenaga
发明人： Yuka Okada , Takamasa Ando , Tsuguhiro Korenaga
IPC分类号： G02B5/18
CPC分类号： G02B5/1814 , G02B5/1871 , G02B5/1895 , G02B13/18 , G02B27/4211 , G02B27/4216 , G02B27/4277
摘要： A diffraction grating lens according to the present invention is a diffraction grating lens 11 including: a lens body 12; and a plurality of diffraction steps relative to a base shape and a plurality of diffraction gratings 13 interposed between the diffraction steps, provided on a surface of the lens body 12. The lens body 12 is made of a first material having a refractive index n1(λ) at a used wavelength λ; the diffraction grating 13 is in contact with air; and the relationship of an inequality below is satisfied, where d is a design step length of the diffraction steps, and m is an order of diffraction. Each of the plurality of annular zones includes an intermediate portion and a pair of end portions sandwiching the intermediate portion along a radial direction, and in at least one of the plurality of annular zones, either one of a recess 18 and a protrusion 19 is provided in at least a portion of one of the pair of end portions, and the other one of the recess 18 and the protrusion 19 is provided in at least a portion of the other of the pair of end portions. Between two kinds of diffraction steps 17A and 17B of the diffraction grating 13, one is provided at a position where the phase difference from the base shape given the design wavelength λ0 is not 2 nmπ. 0.9  d ≤ m · λ n 1  ( λ ) - 1 ≤ 1.1  d
摘要翻译：根据本发明的衍射光栅透镜是衍射光栅透镜11，包括：透镜体12; 以及设置在透镜主体12的表面上的相对于基部形状的多个衍射台和插入在衍射台之间的多个衍射光栅13.透镜体12由折射率为n1的第一材料 λ）; 衍射光栅13与空气接触; 并且满足以下不等式的关系，其中d是衍射级的设计步长，m是衍射级。多个环状区域中的每一个包括中间部分和沿着径向方向夹住中间部分的一对端部，并且在多个环形区域中的至少一个中设置有凹部18和突起19中的任一个在所述一对端部中的一个的至少一部分中，并且所述凹部18和所述突起19中的另一个设置在所述一对端部中的另一个的至少一部分中。在衍射光栅13的两种衍射台阶17A和17B之间，在与设计波长λ0的基底相位差不是2nm＆pgr的位置处设置一个。 0.9，d≤m·λn 1（λ）-1≤1.1d

6. 发明授权

US08154803B2 Diffractive optical element with improved light transmittance 有权
$Diffractive optical element with improved light transmittance$
标题翻译：具有改善透光率的衍射光学元件
公开(公告)号：US08154803B2
公开(公告)日：2012-04-10
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
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 (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：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

7. 发明授权

US08649095B2 Diffraction grating lens and method of producing the same, and imaging device in which the same is used 有权
$Diffraction grating lens and method of producing the same, and imaging device in which the same is used$
标题翻译：衍射光栅透镜及其制造方法以及使用其的成像装置
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。

8. 发明授权

US08441728B2 Diffractive lens and image pickup device using the same 有权
$Diffractive lens and image pickup device using the same$
标题翻译：衍射透镜和使用其的图像拾取装置
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。

9. 发明授权

US08284388B2 Method for measuring optical characteristics of diffraction optical element and apparatus for measuring optical characteristics of diffraction optical element 有权
$Method for measuring optical characteristics of diffraction optical element and apparatus for measuring optical characteristics of diffraction optical element$
标题翻译：用于测量衍射光学元件的光学特性的方法和用于测量衍射光学元件的光学特性的装置
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。

10. 发明授权

US07924214B2 Azimuth detecting apparatus and radar apparatus 有权
标题翻译：方位检测装置和雷达装置
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。

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