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1. 发明申请

US20120147187A1 VEHICLE DETECTION DEVICE AND VEHICLE DETECTION METHOD 有权
标题翻译：车辆检测装置和车辆检测方法
公开(公告)号：US20120147187A1
公开(公告)日：2012-06-14
申请号：US13310001
申请日：2011-12-02
申请人： Xue LI , Hideaki HIRAI
发明人： Xue LI , Hideaki HIRAI
IPC分类号： H04N7/18
CPC分类号： G06K9/00791 , G06K9/00805 , G06K9/3233
摘要： A vehicle detection device having an imaging device to capture two respective polarized images from two polarized light beams having different polarization directions contained in light received from an imaging area including a road surface on which one's own vehicle is traveling and a vehicle traveling on the road surface and a polarization difference calculation device to calculate a polarization difference indicating the ratio of a luminance difference between the two respective polarized images to the luminance total thereof for respective identification processing areas formed by dividing the two respective polarized images taken by the imaging device, and a vehicle area detection device to conduct a vehicle area detection process of detecting a vehicle area displaying the vehicle in the imaging area based on the polarization difference of the respective identification processing areas calculated by the polarization difference calculation device.
摘要翻译：一种车辆检测装置，具有拍摄装置，用于从包含自身车辆行驶的路面的摄像区域和在路面上行驶的车辆的摄像区域中包含的光中捕获来自具有不同偏振方向的两个偏振光束的两个偏振图像以及偏振光差计算装置，用于计算通过划分由成像装置拍摄的两个相应偏振图像形成的各个识别处理区域，指示两个各个偏振图像之间的亮度差与其亮度总和的比率的偏振差，以及车辆区域检测装置，基于由偏振差计算装置计算的各个识别处理区域的偏振差进行检测在摄像区域中显示车辆的车辆区域的车辆区域检测处理。

2. 发明申请

US20100118366A1 POLARIZATION SPLITTING DEVICE, METHOD OF MANUFACTURING POLARIZATION BEAM SPLITTER, OPTICAL SCANNING DEVICE, AND IMAGE FORMING APPARATUS 失效
标题翻译：极化分割装置，制造偏振光束分离器的方法，光学扫描装置和图像形成装置
公开(公告)号：US20100118366A1
公开(公告)日：2010-05-13
申请号：US12603731
申请日：2009-10-22
申请人： Toshiaki TOKITA , Hideaki HIRAI , Seizo SUZUKI
发明人： Toshiaki TOKITA , Hideaki HIRAI , Seizo SUZUKI
IPC分类号： G02B26/10 , G02B27/28 , G02B5/30
CPC分类号： G02B27/283 , G02B5/3041 , G02B26/123
摘要： A polarization splitting device includes a polarization beam splitter having a polarization splitting surface and allows P-polarized light to transmit therethrough and reflects S-polarized light. A subwavelength structure grating is formed on the polarization splitting surface with a grating pitch smaller than wavelength of incident light. The polarization splitting device also includes a polarizer that is arranged on an optical path of light reflected from the polarization beam splitter and has a transmission axis that is parallel to a polarization direction of the S-polarized light.
摘要翻译：偏振分束装置包括具有偏振分离表面的偏振分束器，并允许P偏振光透射并反射S偏振光。在具有比入射光的波长小的光栅间距的偏振分离表面上形成亚波长结构光栅。偏振光分离装置还包括偏振器，其被布置在从偏振分束器反射的光的光路上，并具有平行于S偏振光的偏振方向的透射轴。

3. 发明申请

US20100054110A1 REFLECTING WAVELENGTH PLATE AND OPTICAL PICKUP USING REFLECTING WAVELENGTH PLATE 有权
公开(公告)号：US20100054110A1
公开(公告)日：2010-03-04
申请号：US12550997
申请日：2009-08-31
申请人： Hideaki HIRAI , Kazuhiro Umeki , Toshimichi Nasukawa
发明人： Hideaki HIRAI , Kazuhiro Umeki , Toshimichi Nasukawa
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/1362 , G11B7/1367 , G11B2007/0006
摘要： Disclosed is a reflecting wavelength plate that deflects and reflects a light path and adds a phase difference with respect to plural incident light having different wavelengths. The reflecting wavelength plate includes a substrate; a reflecting film laminated on the substrate; and a sub-wavelength concavo-convex structure that is laminated on the reflecting film and has a pitch less than or equal to the shortest wavelength of the plural incident light. The filling factor and the groove depth of the sub-wavelength concavo-convex structure are determined so as to add the phase difference obtained by (kπ)/8, where k is an integer, to the plural incident light having the different wavelengths.

4. 发明申请

US20090231982A1 OPTICAL PICKUP AND OPTICAL DATA PROCESSING DEVICE USING THE SAME 有权
标题翻译：光学拾取和光学数据处理装置
公开(公告)号：US20090231982A1
公开(公告)日：2009-09-17
申请号：US12403463
申请日：2009-03-13
申请人： Hideaki HIRAI
发明人： Hideaki HIRAI
IPC分类号： G11B7/00 , G11B7/135
CPC分类号： G11B7/1369 , G11B7/0903 , G11B7/094 , G11B7/1353 , G11B7/1367 , G11B2007/0006
摘要： An optical pickup including a light source, two light focus devices, a light reception device, a polarization selective light path splitting device, a polarization switching device, a first diffraction element including a periodic structure including two kinds of sub-wavelength convexo-concave structures while the two kinds of sub-wavelength convexo-concave structures alternately arranged at right angles to each other, and the filling factors of the two kinds of sub-wavelength convexo-concave structures are determined to substantially equalize effective refractive indices of the two kinds of sub-wavelength convexo-concave structures with regard to the polarization direction of the outgoing light beam, and the second diffraction element having a structure similar to that of the first diffraction element except that the filling factors are determined to substantially equalize effective refractive indices of the two kinds of sub-wavelength convexo-concave structures with regard to a polarization direction perpendicular to the polarization direction of the outgoing light beam.
摘要翻译：包括光源的光学拾取器，两个光聚焦装置，光接收装置，偏振选择光路分离装置，偏振切换装置，包括包括两种亚波长凹凸结构的周期性结构的第一衍射元件而两种亚波长凹凸结构交替地彼此交替布置，并且确定两种亚波长凸凹结构的填充系数，以使两种亚波长凹凸结构的有效折射率基本相等相对于出射光束的偏振方向的亚波长凹凸结构，第二衍射元件具有类似于第一衍射元件的结构，除了填充因子被确定为基本上均衡有效折射率关于极性的两种亚波长凹凸结构垂直于出射光束的偏振方向的方向。

5. 发明申请

US20120105843A1 SPECTRAL IMAGE ACQUIRING APPARATUS 有权
标题翻译：光谱图像采集设备
公开(公告)号：US20120105843A1
公开(公告)日：2012-05-03
申请号：US13275572
申请日：2011-10-18
申请人： Hideaki HIRAI , Masanori KOBAYASHI
发明人： Hideaki HIRAI , Masanori KOBAYASHI
IPC分类号： G01J3/40
CPC分类号： G01J3/2823 , G01J3/02 , G01J3/0208 , G01J3/0224 , G01J3/0229 , G01J3/0259 , G02B5/1814 , G02B5/20
摘要： A spectral image acquiring apparatus includes an optical filter on which light is incident; an image sensor including a two-dimensionally disposed pixel array for detecting the light via the optical filter; and a signal processing unit generating a difference-value image based on a detection signal from the image sensor. The optical filter includes a diffraction grating having a lattice pattern corresponding to one or more pixels on the image sensor. The signal processing unit calculates a difference value in an amount of received light between two adjacent pixels based on the detection signal from the image sensor, and generates the difference-value image based on the difference value. The difference value between the two adjacent pixels is varied depending on a difference in an interference point on the image sensor corresponding to a diffraction angle of the light that has passed through the diffraction grating.
摘要翻译：光谱图像获取装置包括光入射的滤光器; 图像传感器，包括用于经由所述滤光器检测所述光的二维布置的像素阵列; 以及信号处理单元，其基于来自图像传感器的检测信号生成差值图像。光学滤波器包括具有对应于图像传感器上的一个或多个像素的格子图案的衍射光栅。信号处理单元基于来自图像传感器的检测信号计算两个相邻像素之间的接收光量的差值，并基于差值生成差值图像。两个相邻像素之间的差值取决于对应于已经通过衍射光栅的光的衍射角的图像传感器上的干涉点的差异。

6. 发明申请

US20100278029A1 REFLECTING WAVELENGTH PLATE AND OPTICAL PICKUP USING REFLECTING WAVELENGTH PLATE 有权
标题翻译：使用反射波长板反射波长板和光学拾取
公开(公告)号：US20100278029A1
公开(公告)日：2010-11-04
申请号：US12842369
申请日：2010-07-23
申请人： Hideaki HIRAI , Kazuhiro Umeki , Toshimichi Nasukawa
发明人： Hideaki HIRAI , Kazuhiro Umeki , Toshimichi Nasukawa
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/1362 , G11B7/1367 , G11B2007/0006
摘要： Disclosed is a reflecting wavelength plate that deflects and reflects a light path and adds a phase difference with respect to plural incident light having different wavelengths. The reflecting wavelength plate includes a substrate; a reflecting film laminated on the substrate; and a sub-wavelength concavo-convex structure that is laminated on the reflecting film and has a pitch less than or equal to the shortest wavelength of the plural incident light. The filling factor and the groove depth of the sub-wavelength concavo-convex structure are determined so as to add the phase difference obtained by (kπ)/8, where k is an integer, to the plural incident light having the different wavelengths.
摘要翻译：公开了一种反射波长板，其使光路偏转并反射，并且相对于具有不同波长的多个入射光增加相位差。反射波长板包括基板; 层叠在基板上的反射膜; 以及层叠在反射膜上并具有小于或等于多个入射光的最短波长的间距的亚波长凹凸结构。确定亚波长凹凸结构的填充因子和凹槽深度，以便将具有不同波长的多个入射光中的（k＆pgr）/ 8（其中k是整数）获得的相位差相加。

7. 发明申请

US20090316025A1 IMAGE PICKUP 失效
标题翻译：图像拾取
公开(公告)号：US20090316025A1
公开(公告)日：2009-12-24
申请号：US12486246
申请日：2009-06-17
申请人： Hideaki HIRAI
发明人： Hideaki HIRAI
IPC分类号： H04N5/335
CPC分类号： H04N5/2256 , A61B5/1103 , A61B5/18 , B82Y20/00 , G02B1/005 , G02B3/0018 , G02B5/20 , H04N5/2253 , H04N5/33
摘要： An image pickup including a light emission portion that irradiates an object with near infrared; and an image pickup portion that receives a reflection light image of the object by the near infrared. The image pickup portion includes a lens array containing a substrate on which multiple lenses to respectively receive the reflection light image of the object by the near infrared are arranged; a light shield spacer that shields beams of light that have passed through the lens array from each other; a color filter separated into areas according to beams of light that pass through the light shield spacer, each of which transmits only particular beams of near infrared depending on the wavelengths thereof; and an image pickup element that simultaneously obtains multiple images of the object which are formed of each of the particular beams of near infrared having independent wavelengths that have passed through each of the areas of the color filter.
摘要翻译：一种图像拾取器，包括：用近红外线照射物体的发光部分; 以及通过近红外接收物体的反射光图像的摄像部。图像拾取部分包括透镜阵列，该透镜阵列包括其上分别接收由近红外线的物体的反射光图像的多个透镜的基板; 屏蔽隔离物，其遮蔽彼此通过透镜阵列的光束; 根据根据光束的光束分离成根据光束隔离物的区域的滤色器，每个透射屏蔽间隔物根据其波长仅透射特定的近红外光束; 以及图像拾取元件，其同时获得由具有通过滤色器的每个区域的独立波长的每个特定近红外光束形成的对象的多个图像。

8. 发明申请

US20140029008A1 FOREIGN SUBSTANCE DETECTION DEVICE, MOVING BODY CONTROL SYSTEM INCLUDING FOREIGN SUBSTANCE DETECTION DEVICE, AND MOVING BODY INCLUDING MOVING BODY CONTROL SYSTEM 有权
标题翻译：外部物体检测装置，包括外部物体检测装置的移动体控制系统，以及包括移动体控制系统的移动体
公开(公告)号：US20140029008A1
公开(公告)日：2014-01-30
申请号：US13945029
申请日：2013-07-18
申请人： Hideaki HIRAI , Izumi ITOH
发明人： Hideaki HIRAI , Izumi ITOH
IPC分类号： G01N21/55
CPC分类号： G01N21/552 , B60S1/0844 , G06K9/00791
摘要： A foreign substance detection system includes an optical device having an input surface through which is part of light emitted from a light source enters the optical device and a transparent face, provided in close contact with an inner surface of a glass, to transmit a light reflected from an area where a substance is not present on an outer surface of the glass toward a first light-receiving member; a light-guiding member to guide another part of the light that does not pass through the input surface, the guided light being to be reflected from an area where a substance is present on an inner surface of the glass toward a second light-receiving member; and an foreign substance detection processor to detect an outer substance based on the first light-receiving member and detect the inner substance based on the second light-receiving member.
摘要翻译：异物检测系统包括具有输入面的光学装置，作为从光源射出的光的一部分通过该输入面进入光学装置，和与玻璃的内表面紧密接触地设置的透明面，以透射反射的光从玻璃的外表面上不存在物质的区域朝向第一受光部件; 导光构件，其引导不通过所述输入面的光的另一部分，所述被引导光从所述玻璃的内表面上存在物质的区域朝向第二受光构件反射 ; 以及异物检测处理器，用于基于第一光接收部件检测外部物质，并且基于第二光接收部件检测内部物质。

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