公开(公告)号：US08036089B2

公开(公告)日：2011-10-11

申请号：US10584029

申请日：2005-11-17

申请人： Hideaki Hirai

发明人： Hideaki Hirai

IPC分类号： G11B7/135

CPC分类号： G11B7/1378 ,  G11B7/0948 ,  G11B7/0956 ,  G11B7/1369 ,  G11B7/13927 ,  G11B2007/0006 ,  G11B2007/0013 ,  G11B2007/13727

摘要： An optical pick-up to perform recording or reproducing for an optical recording medium is disclosed, which includes a light source configured to emit a light beam, an objective lens configured to focus the light beam onto the optical recording medium, and an aberration generation device provided between the light source and the objective lens, configured to generate coma aberration for the beam focused by the objective lens, based on a detected value from a device configured to detect a degree of tilt of the optical recording medium, wherein the tilt is compensated for by the coma aberration generated by the aberration generation device.

摘要翻译： 公开了一种用于执行光学记录介质的记录或再现的光学拾取器，其包括被配置为发射光束的光源，被配置为将光束聚焦到光学记录介质上的物镜，以及像差产生装置 设置在所述光源和所述物镜之间，被配置为基于来自被配置为检测所述光学记录介质的倾斜度的装置的检测值产生由所述物镜聚焦的光束的彗形像差，其中所述倾斜被补偿 因为由像差产生装置产生的彗差。

公开(公告)号：US07796490B2

公开(公告)日：2010-09-14

申请号：US12244162

申请日：2008-10-02

申请人： Hideaki Hirai

发明人： Hideaki Hirai

IPC分类号： G11B7/00

CPC分类号： G11B7/1367 ,  G11B7/1275 ,  G11B7/139 ,  G11B7/13925 ,  G11B2007/0006

摘要： An optical pickup performing recording, reproduction and deletion of information on or from an optical recording medium. The pickup includes light sources for information recording media using a blue wavelength beam, information recording media of DVD family and information recording media of CD family. A single object lens may be used to condense light from any of the light sources. A single aberration correction device may be disposed in a common light path between each of the light sources and the object lens.

摘要翻译： 一种在光记录介质上执行信息的记录，再现和删除的光学拾取器。 拾取器包括用于使用蓝色波长束的信息记录介质的光源，DVD系列的信息记录介质和CD系列的信息记录介质。 单个物镜可用于冷凝来自任何光源的光。 单个像差校正装置可以设置在每个光源和物镜之间的公共光路中。

公开(公告)号：US20100014073A1

公开(公告)日：2010-01-21

申请号：US12500150

申请日：2009-07-09

申请人： Tsuyoshi Hashiguchi ,  Hideaki Hirai

发明人： Tsuyoshi Hashiguchi ,  Hideaki Hirai

IPC分类号： G01N21/41

CPC分类号： G02B5/1809 ,  B82Y20/00 ,  G01N21/41 ,  G01N21/55 ,  G02B5/008 ,  G02B5/203

摘要： An optical element for resonating and reflecting incident light having a wavelength includes a periodic structure formed of protrusions and recessions. A period of the periodic structure is equal to or less than the wavelength of the incident light. The incident light having the wavelength is resonated and reflected by a resonance caused between the incident light and the protrusions and recessions. Widths of the protrusions are spatially changed.

摘要翻译： 用于谐振和反射具有波长的入射光的光学元件包括由突起和凹陷形成的周期性结构。 周期性结构的周期等于或小于入射光的波长。 具有波长的入射光由入射光和突起和凹陷之间的共振引起共振和反射。 突起的宽度在空间上改变。

公开(公告)号：US20080008078A1

公开(公告)日：2008-01-10

申请号：US11892788

申请日：2007-08-27

申请人： Hideaki Hirai

发明人： Hideaki Hirai

IPC分类号： G11B7/135 ,  G02B13/18

CPC分类号： G11B7/1369 ,  G11B7/1374 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/13927 ,  G11B2007/0006

摘要： As an object lens for an optical pickup, applied is a single-lens and both-side-convex configuration is applied. Further, specific conditional formulas are created with respect to a particular numerical aperture NA, for a paraxial curvature radius R1 on the surface on the light source side; the working distance WD, the refractive index nd with respect to the d-line, and the focal length f. Furthermore, specific conditional formulas are created for the refractive index nd with respect to the d-line and the Abbe's number νd.

摘要翻译： 作为用于光学拾取器的物镜，应用是单透镜，并且应用双侧凸构造。 此外，对于光源侧的表面上的近轴曲率半径R 1，针对特定数值孔径NA创建特定的条件公式; 工作距离WD，相对于d线的折射率nd和焦距f。 此外，针对d线和阿贝数nud的折射率nd创建特定的条件公式。

公开(公告)号：US20070237057A1

公开(公告)日：2007-10-11

申请号：US11798907

申请日：2007-05-17

申请人： Hideaki Hirai

发明人： Hideaki Hirai

IPC分类号： G11B7/135

CPC分类号： G11B7/1275 ,  G11B7/1353 ,  G11B7/1367 ,  G11B7/1374 ,  G11B7/139 ,  G11B7/13922 ,  G11B7/13925 ,  G11B2007/0006

摘要： An optical pickup includes a first optical source producing a first optical beam having a wavelength λ1, a second optical source producing a second optical beam having a wavelength λ2 (λ1

摘要翻译： 光拾取器包括产生具有波长λ1的第一光束的第一光源，产生具有波长λ2（λ1λ2）的第二光束的第二光源，以及聚焦第一 和第二光束到光记录介质，第一光束作为平行光束入射到物镜上，第二光束作为发散光入射到物镜，其中孔设置在物镜的前侧 物镜从前侧的主点偏离距离t，由公式<？in-line-formula description =“In-line Formulas”end =“lead”？> t = L-NA1.f / tan（a sin（NA2obj）），<？in-line-formula description =“In-line Formulas”end =“tail”？>其中f表示物镜的焦距，NA 1表示 当第一光源打开时，图像表面的一侧，NA 2 obj表示 当第二光源被接通时，在前侧的数值孔径，L表示当第二光源被接通时的物体距离。

公开(公告)号：US20070127111A1

公开(公告)日：2007-06-07

申请号：US11633001

申请日：2006-12-04

申请人： Tsuyoshi Hashiguchi ,  Hideaki Hirai

发明人： Tsuyoshi Hashiguchi ,  Hideaki Hirai

IPC分类号： G02B26/00 ,  G02F1/29 ,  G02F1/00

CPC分类号： G02F1/19 ,  G02B26/0833 ,  G02F1/225 ,  G02F1/3136 ,  G02F2201/16 ,  G02F2201/305 ,  G02F2203/023 ,  G02F2203/055

摘要： An optical switching element includes a resonant reflection element and a driving unit. The resonant reflection element has a thickness portion functioning as a waveguide layer, with one surface in a thickness direction functioning as a total reflection surface and the other surface having formed thereon a fine periodic structure with fine asperities, the resonant reflection element resonant-reflecting light that is incident from the other surface and has a specific wavelength component. The driving unit varies a resonant wavelength of resonant refection by varying at least one of a shape and a refractive index of the resonant reflection element.

摘要翻译： 光开关元件包括谐振反射元件和驱动单元。 谐振反射元件具有用作波导层的厚度部分，其厚度方向上的一个表面作为全反射面发挥功能，另一个表面形成有细微的周边结构，具有微细的凹凸，共振反射元件的共振反射光 其从另一个表面入射并具有特定的波长分量。 驱动单元通过改变谐振反射元件的形状和折射率中的至少一个来改变共振反射的谐振波长。

公开(公告)号：US20050270955A1

公开(公告)日：2005-12-08

申请号：US11201197

申请日：2005-08-11

申请人： Hideaki Hirai

发明人： Hideaki Hirai

IPC分类号： G11B7/00 ,  G11B7/095 ,  G11B7/135

CPC分类号： G11B7/13925 ,  G11B7/1369 ,  G11B2007/0013

摘要： An optical pickup unit includes a light source emitting a light beam, an objective lens focusing the light beam onto an information recording medium, a light detection part receiving the light beam reflected from the information recording medium, and a light blocking part selectively blocking a part of the light beam with respect to a radial direction. The light blocking part is provided in an optical path of the light beam centered on an optical axis.

摘要翻译： 光拾取单元包括发射光束的光源，将光束聚焦到信息记录介质上的物镜，接收从信息记录介质反射的光束的光检测部分和选择性地阻挡部分的光阻挡部分 的光束相对于径向方向。 遮光部设置在以光轴为中心的光束的光路中。

公开(公告)号：US20050243674A1

公开(公告)日：2005-11-03

申请号：US11038524

申请日：2005-01-21

申请人： Hideaki Hirai

发明人： Hideaki Hirai

IPC分类号： G11B7/24 ,  G11B7/00 ,  G11B7/08 ,  G11B7/09 ,  G11B7/095 ,  G11B7/125 ,  G11B7/135 ,  G11B7/1376 ,  G11B7/1378 ,  G11B7/1392

CPC分类号： G11B7/1376 ,  G11B7/0948 ,  G11B7/0956 ,  G11B7/1378 ,  G11B7/13927 ,  G11B2007/0006

摘要： In a case where the optical recording medium comprises a multi-layer optical recording medium having a plurality of information recording surfaces, the following equation is satisfied on each information recording surface x (x=1, 2, . . . ) of the multi-layer optical recording medium: |CLx/CDx|≧1, where CDx (x=1, 2, . . . ) denotes each least squire error value (unit: λrms) of a cubic coma aberration component occurring per unit angle when the multi-layer optical recording medium is inclined; and CLx (x=1, 2, . . . ) denotes each least squire error value (unit: λrms) of a cubic coma aberration component occurring per unit angle when the objective lens is inclined in a case where the laser light is condensed and applied to a predetermined information recording surface x of the multi-layer optical recording medium.

摘要翻译： 在光记录介质包括具有多个信息记录表面的多层光学记录介质的情况下，在多个信息记录表面的信息记录表面x（x = 1,2，...）上满足以下等式， 表示：当CDx（x = 1,2，...）表示当每单位角度出现的立方彗形象差分量的每个最小方位误差值（单位：lambdarms）时， 多层光记录介质倾斜; CLx（x = 1,2，...）表示在激光冷凝的情况下，当物镜倾斜时，每单位角度出现的立方彗形像差分量的每个最小方位误差值（单位：lambdarms） 施加到多层光学记录介质的预定信息记录表面x。

公开(公告)号：US06545958B1

公开(公告)日：2003-04-08

申请号：US09384377

申请日：1999-08-27

申请人： Hideaki Hirai ,  Hiroshi Koide ,  Hiroshi Akiyama

发明人： Hideaki Hirai ,  Hiroshi Koide ,  Hiroshi Akiyama

IPC分类号： G11B700

CPC分类号： G11B7/1381 ,  G11B7/0935 ,  G11B7/094 ,  G11B7/0956 ,  G11B7/127 ,  G11B2007/0006

摘要： An optical-pickup device includes a plurality of light sources, an objective lens for converging light from the plurality of light sources on an optical disc, and at least one light-receiving element for receiving light reflected by the optical disc. A light source of the plurality of light sources, which light source is not used for recording/reproducing, is used for detecting relative tilt between the optical disc and the objective lens.

摘要翻译： 光拾取装置包括多个光源，用于将来自多个光源的光会聚在光盘上的物镜，以及用于接收由光盘反射的光的至少一个光接收元件。 使用不用于记录/再现的多个光源的光源来检测光盘和物镜之间的相对倾斜。

公开(公告)号：US09616852B2

公开(公告)日：2017-04-11

申请号：US14354210

申请日：2012-11-01

申请人： Ryosuke Kasahara ,  Hideaki Hirai

发明人： Ryosuke Kasahara ,  Hideaki Hirai

IPC分类号： G06K9/00 ,  B60S1/08 ,  H04N5/225 ,  G06T1/00 ,  G06K9/20 ,  H04N5/235 ,  H04N5/353

CPC分类号： B60S1/0844 ,  G06K9/00791 ,  G06K9/00832 ,  G06K9/2027 ,  G06T1/0007 ,  H04N5/225 ,  H04N5/2353 ,  H04N5/3535

摘要： An image processing apparatus includes a light source configured to emit light onto a glass; an image-capturing unit configured to capture light from an image-capturing region including reflection light of the emitted light from the glass; an object detection filter used to detect an object attached to the glass, light from a portion of the image-capturing region entering the object detection filter; an exposure control unit configured to determine a first exposure amount used in image capturing for a first region where the object detection filter does not exist and a second exposure amount used in image capturing for a second region where the object detection filter exists; and an image analysis unit configured to analyze a captured image obtained by the image-capturing unit. The image-capturing unit switches an exposure amount used in an image-capturing process for the image-capturing region between the first exposure amount and the second exposure amount.