公开(公告)号：US6076932A

公开(公告)日：2000-06-20

申请号：US934867

申请日：1997-09-22

申请人： Shinji Uchida ,  Tsuguhiro Korenaga ,  Hiroyasu Tsuji ,  Shougo Nasu ,  Norimoto Nouchi ,  Toshio Fukazawa ,  Toshihiro Kuriyama ,  Yuji Matsuda

发明人： Shinji Uchida ,  Tsuguhiro Korenaga ,  Hiroyasu Tsuji ,  Shougo Nasu ,  Norimoto Nouchi ,  Toshio Fukazawa ,  Toshihiro Kuriyama ,  Yuji Matsuda

IPC分类号： G02B5/22 ,  G02F1/1335 ,  G11B7/135 ,  G02B27/00

CPC分类号： G11B7/1356 ,  G02B5/22 ,  G02F1/133512 ,  G11B7/1362

摘要： This invention provides a light absorber which can be used for optical equipment like optical-disk equipment and a liquid crystal display. The light absorber has a layered structure including a light absorbing layer and a transparent layer. The light absorbing layer absorbs a reflected light from the inside of the absorber as well as incident light into the absorber while the transparent layer helps attenuate the reflected light by interference of light. One of the light absorbing layers which is thicker than others may work as a shading layer for the incident light.

摘要翻译： 本发明提供一种可用于诸如光盘设备和液晶显示器之类的光学设备的光吸收体。 光吸收体具有包括光吸收层和透明层的层状结构。 光吸收层吸收来自吸收体的内部的反射光以及入射到吸收体的入射光，同时透明层通过光的干涉来帮助衰减反射光。 比其他光吸收层更厚的一个可以作为入射光的遮光层。

公开(公告)号：US6005835A

公开(公告)日：1999-12-21

申请号：US968587

申请日：1997-11-13

申请人： Hiroyasu Tsuji ,  Toshio Fukazawa ,  Shogo Nasu ,  Norimoto Nochi ,  Shinji Uchida ,  Tsuguhiro Korenaga

发明人： Hiroyasu Tsuji ,  Toshio Fukazawa ,  Shogo Nasu ,  Norimoto Nochi ,  Shinji Uchida ,  Tsuguhiro Korenaga

IPC分类号： G02B5/18 ,  G02B27/28 ,  G11B7/135 ,  G11B7/1353 ,  G11B7/1356 ,  G11B7/1362 ,  G11B7/1374 ,  G11B7/00

CPC分类号： G11B7/1356 ,  G02B27/283 ,  G02B27/4238 ,  G02B5/1814

摘要： A prism and an optical pickup employing such prism includes a parallel prism having a polarization beam splitter film and a reflection film. The polarization beam splitter film is formed on an angled plane of a glass material having an approximate parallelogram cross-section, and consists of a multi-layer film of a composite film made of Si and SiO.sub.2-x (x

摘要翻译： 使用这种棱镜的棱镜和光学拾取器包括具有偏振分束膜和反射膜的平行棱镜。 偏振分束膜形成在具有近似平行四边形横截面的玻璃材料的倾斜平面上，并由由Si和SiO 2-x（x <0.5）构成的复合膜的多层膜和多层 的多个介电膜。 反射膜形成在与形成有偏振分束膜的倾斜平面大致平行的同一玻璃材料的倾斜平面上，由多层由金属Si和氧化物SiO 2的复合膜组成， 作为高折射膜的x（x <0.5）和作为相对低折射膜的多层多介质膜。

公开(公告)号：US5978346A

公开(公告)日：1999-11-02

申请号：US16527

申请日：1998-01-30

申请人： Sadao Mizuno ,  Tsuguhiro Korenaga ,  Shinji Uchida

发明人： Sadao Mizuno ,  Tsuguhiro Korenaga ,  Shinji Uchida

IPC分类号： G11B7/00 ,  G11B7/135 ,  G11B7/12

CPC分类号： G11B7/1395 ,  G11B7/1353 ,  G11B7/1356 ,  G11B7/1365 ,  G11B7/1374 ,  G11B7/1381 ,  G11B2007/0006 ,  G11B2007/13727

摘要： An optical head has a light source; luminous flux splitting means for splitting radiation luminous flux of linearly polarized light radiated from the light source into plural luminous fluxes without changing the luminous flux diameter substantially; a wavelength plate for polarizing at least one of the luminous fluxes split by the luminous flux splitting means into a nearly circularly polarized light as illumination luminous flux; an objective lens for converging the illumination luminous flux through the wavelength plate on an optical information medium and collecting the reflected light; and a photodetector for receiving the reflected luminous flux collected by the objective lens after passing through the wavelength plate and the luminous flux splitting means. The quantity of received light for maintaining the S/N ratio is sufficient for reproducing a high density optical disk and a conventional optical disk with a large birefringence.

摘要翻译： 光头具有光源; 光束分离装置，用于将从光源辐射的线偏振光的辐射光束分散成多个光束而不改变光通量; 波长板，用于将由光束分离装置分割的光束中的至少一个偏振成近似圆偏振光作为照明光束; 用于将通过波长板的照明光束会聚在光信息介质上并收集反射光的物镜; 以及光电检测器，用于接收通过波长板和光通量分离装置之后由物镜收集的反射光通量。 用于保持S / N比的接收光量足以再现高密度光盘和具有大双折射率的传统光盘。

公开(公告)号：US5863379A

公开(公告)日：1999-01-26

申请号：US275273

申请日：1994-07-15

申请人： Shinji Uchida ,  Tsuguhiro Korenaga ,  Hideo Kurokawa ,  Akito Sawada

发明人： Shinji Uchida ,  Tsuguhiro Korenaga ,  Hideo Kurokawa ,  Akito Sawada

IPC分类号： C23C14/54 ,  G01B11/06 ,  B32B31/00

CPC分类号： C23C14/547 ,  G01B11/0683 ,  Y10T156/10

摘要： A multilayer film forming apparatus including a film forming chamber, a substrate on which a multilayer film is formed, an optical thickness monitoring substrate which controls an optical thickness of each layer of a multilayer film, a monitor exchange system which exchanges the optical thickness monitoring substrate for each layer and a multilayer film monitoring substrate which is disposed under the optical thickness monitoring substrate to observe spectral characteristics of the multilayer film. The invention also includes a light source which irradiates light to the optical thickness monitoring substrate and to the multilayer film monitoring substrate, an optical lens which reshapes the light radiated from the light source, an optical window which lets the light into and out of the film forming chamber, a detector which detects the light quantity reflected from the optical thickness monitoring substrate and a spectral characteristics evaluation device which measures spectral characteristics of the light reflected from the multilayer film monitoring substrate. The multilayer film monitoring substrate is fixed to a holding jig to prevent itself from inclining more than ten minutes against the disposed state.

摘要翻译： 一种多层膜形成装置，包括：成膜室，形成有多层膜的基板;控制多层膜的各层的光学厚度的光学厚度监视基板;交换光学厚度监视基板的监视器交换系统 并且设置在光学厚度监视基板下方以观察多层膜的光谱特性的多层膜监视基板。 本发明还包括将光照射到光学厚度监测基板和多层膜监视基板的光源，重新形成从光源照射的光的光学透镜，使光入射到膜的光学窗口 检测从光学厚度监测基板反射的光量的检测器和测量从多层膜监测基板反射的光的光谱特性的光谱特性评价装置。 多层膜监视基板固定在保持夹具上，以防止自身相对于处置状态倾斜超过十分钟。

公开(公告)号：US5790503A

公开(公告)日：1998-08-04

申请号：US755405

申请日：1996-11-22

申请人： Sadao Mizuno ,  Tsuguhiro Korenaga ,  Shinji Uchida

发明人： Sadao Mizuno ,  Tsuguhiro Korenaga ,  Shinji Uchida

IPC分类号： G11B7/00 ,  G11B7/135

CPC分类号： G11B7/1395 ,  G11B7/1353 ,  G11B7/1356 ,  G11B7/1365 ,  G11B7/1374 ,  G11B7/1381 ,  G11B2007/0006 ,  G11B2007/13727

摘要： An optical head has a light source, luminous flux splitting means for splitting radiation luminous flux of linearly polarized light radiated from the light source into plural luminous fluxes, a wavelength plate for polarizing at least one of the luminous fluxes split by the luminous flux splitting means into a nearly circularly polarized light as illumination luminous flux, an objective lens for converging the illumination luminous flux on an optical information medium and collecting the reflected light, and a photo detector for receiving the reflected luminous flux, after passing through the wavelength plate and the luminous flux splitting means, wherein supposing a power efficiency when splitting the illumination luminous flux from the radiation luminous flux to be E1, a power efficiency when transmitting a polarized light component of the reflected luminous flux, the component being orthogonal to a direction of polarization of the illumination luminous flux, to the photo detector to be E2, and a power efficiency when transmitting a polarized light component of the reflected luminous flux, the component having substantially same direction as a direction of polarization of the illumination luminous flux, to the photo detector to be E3, the E2 is larger than the E1 and the E1.times.E3 is such amount that can be detected by the photo detector.

摘要翻译： 光头具有光源，用于将从光源辐射的线偏振光的辐射光束分解成多个光束的光束分离装置，用于偏振由光束分离装置分割的至少一个光束的波长板 成为近似圆偏振光作为照明光束，用于将照明光束会聚在光信息介质上并收集反射光的物镜，以及用于接收反射光束的光检测器，在经过波长板和 光束分离装置，其中当将从所述辐射光通量分离所述照明光束时的功率效率设定为E1时，将所述反射光束的偏振光分量透射时的功率效率，所述偏振光分量正交于偏振方向 照明光通量，到光电检测器 为E2，当将具有与照明光束的偏振方向大致相同的方向的反射光束的偏振光分量发送到光电检测器时的功率效率为E2，E2大于 E1和E1xE3是可以由光电检测器检测到的量。

公开(公告)号：US5410411A

公开(公告)日：1995-04-25

申请号：US3807

申请日：1993-01-13

申请人： Shinji Uchida ,  Tsuguhiro Korenaga ,  Akito Sawada ,  Hideo Kurokawa

发明人： Shinji Uchida ,  Tsuguhiro Korenaga ,  Akito Sawada ,  Hideo Kurokawa

IPC分类号： C23C14/54 ,  G01B11/06 ,  H01J37/32 ,  G01B11/02

CPC分类号： H01J37/32935 ,  C23C14/547 ,  G01B11/0683 ,  H01J2237/30455 ,  H01J2237/3132

摘要： A method of and an apparatus for forming a multi-layer film, includes: a thickness control device for controlling an optical film thickness or a thickness of each of the layers of the multi-layer film; a multi-layer film monitoring substrate on which the multi-layer film is formed; a measurement device for measuring the optical characteristics of the multi-layer film formed on the multi-layer film monitoring substrate; and a processing device which processes the results obtained by the measurement device so as to feed the processed results back to the thickness control device.

摘要翻译： 一种用于形成多层膜的方法和装置，包括：用于控制多层膜的每个层的光学膜厚度或厚度的厚度控制装置; 形成有多层膜的多层膜监视基板; 用于测量形成在所述多层膜监视基板上的多层膜的光学特性的测量装置; 以及处理装置，其处理由测量装置获得的结果，以便将处理结果送回厚度控制装置。

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。

公开(公告)号：US20130141634A1

公开(公告)日：2013-06-06

申请号：US13701924

申请日：2012-05-18

申请人： Tsuguhiro Korenaga ,  Norihiro Imamura

发明人： Tsuguhiro Korenaga ,  Norihiro Imamura

IPC分类号： H04N5/238

CPC分类号： H04N5/238 ,  A61B1/00009 ,  A61B1/00096 ,  A61B1/00188 ,  A61B1/00193 ,  A61B1/051 ,  G02B27/4205 ,  H04N5/225 ,  H04N5/2254 ,  H04N5/332 ,  H04N9/07

摘要： An imaging device includes: a lens optical system including a first region and a second region having different optical properties; an imaging element including first pixels and second pixels; an arrayed optical element which is provided between the lens optical system and the imaging element, allows light passing through the first region to enter the first pixels, and allows light passing through the second region to enter the second pixels; a signal processing unit configured to generate object information using pixel values obtained from the first pixels and the second pixels; and a diffractive optical element provided between the arrayed optical element and the lens optical system and including a diffraction grating symmetrical about an optical axis of the lens optical system.

摘要翻译： 成像装置包括：透镜光学系统，包括具有不同光学特性的第一区域和第二区域; 成像元件，包括第一像素和第二像素; 设置在透镜光学系统和成像元件之间的排列的光学元件允许通过第一区域的光进入第一像素，并允许穿过第二区域的光进入第二像素; 信号处理单元，被配置为使用从所述第一像素和所述第二像素获得的像素值来生成对象信息; 以及衍射光学元件，设置在所述阵列的光学元件和所述透镜光学系统之间并且包括关于所述透镜光学系统的光轴对称的衍射光栅。

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。