公开(公告)号：US20140034817A1

公开(公告)日：2014-02-06

申请号：US13955230

申请日：2013-07-31

Applicant: Tadashi NAKAMURA ,  Shigeaki Imai ,  Shuichi Suzuki ,  Mitsuru Nakajima ,  Kenichi Yoshimura ,  Hiroyoshi Funato

Inventor： Tadashi NAKAMURA ,  Shigeaki Imai ,  Shuichi Suzuki ,  Mitsuru Nakajima ,  Kenichi Yoshimura ,  Hiroyoshi Funato

IPC: G01V8/22

CPC classification number: G01V8/22 ,  G01S7/4817 ,  G02B26/123

Abstract: An object detection apparatus includes an incident optical system, which includes light source units and a combining unit combining light beams emitted from the light source units; a deflection unit including rotating reflection parts that deflect the light beams to scan and be irradiated on a predetermined range of an object; an imaging unit forming an image based on the light from the predetermined range of the object; and an optical detection unit detecting the object based on the light received via the imaging unit. Further the combining unit combines the light beams such that each of the combined light beams passes a single light path when projected onto a predetermined plane, and each of the light paths exists outside a region of the deflection unit when projected onto the first plane.

Abstract translation: 物体检测装置包括入射光学系统，其包括光源单元和组合单元，其组合从光源单元发射的光束; 偏转单元，其包括旋转的反射部分，其将所述光束偏转扫描并照射在物体的预定范围上; 成像单元，其基于来自所述对象的预定范围的光形成图像; 以及光学检测单元，其基于经由所述成像单元接收的光检测所述物体。 此外，组合单元组合光束，使得当投影到预定平面上时，组合的每个光束通过单个光路，并且当投影到第一平面上时，每个光路存在于偏转单元的区域的外部。

公开(公告)号：US08045249B2

公开(公告)日：2011-10-25

申请号：US12133086

申请日：2008-06-04

Applicant: Masanori Kobayashi ,  Hiroyoshi Funato ,  Kazuya Miyagaki

Inventor： Masanori Kobayashi ,  Hiroyoshi Funato ,  Kazuya Miyagaki

IPC: G02B26/08

CPC classification number: G02B26/124 ,  G02F1/133377 ,  G02F2001/311

Abstract: An optical scanning device including a light source, a deflection device to deflect a light beam from the light source, an image focus optical system to focus the light beam deflected by the deflection device on a scanned surface to form an image thereon and scan a surface by the light beam deflected by deflection device to form an image thereon, a light path switching device provided between the light source and the deflection device, which switches a light path of the light beam emitted from the light source to deflect the light beam on different timings such that the light beam scans different surfaces.

Abstract translation: 一种光学扫描装置，包括光源，用于偏转来自光源的光束的偏转装置，用于将由偏转装置偏转的光束聚焦在扫描表面上的图像聚焦光学系统，以在其上形成图像并扫描表面 由偏转装置偏转的光束在其上形成图像，设置在光源和偏转装置之间的光路切换装置，其切换从光源发射的光束的光路，以将光束偏转到不同的光源 定时使得光束扫描不同的表面。

公开(公告)号：US07242839B2

公开(公告)日：2007-07-10

申请号：US11086282

申请日：2005-03-23

Applicant: Atsushi Sakai ,  Ikuo Katoh ,  Hiroyoshi Funato ,  Toshihiko Baba

Inventor： Atsushi Sakai ,  Ikuo Katoh ,  Hiroyoshi Funato ,  Toshihiko Baba

IPC: G02B6/10

CPC classification number: G02B6/1225 ,  B82Y20/00

Abstract: An optical delay element including a photonic crystal line defect optical waveguide is disclosed that has a large group refractive index and has small or nearly constant wavelength dispersion of the group refractive index in a wide wavelength region for practical use. The optical delay element includes a line defect optical waveguide formed in a photonic crystal structure, and the volume of the line defect optical waveguide is less than the volume of a single line defect optical waveguide. Thereby, the waveguide band of the line defect optical waveguide has two zero points in the third order dispersion curve of the line defect optical waveguide, and the sign of the third order dispersion curve is inverted near the zero points. Therefore, the waveguide band of the line defect optical waveguide is modified, and this enables expansion of the wavelength region having a large group refractive index, small wavelength dispersion of the group refractive index, and small wavelength dispersion of the speed of optical pulses.

Abstract translation: 公开了具有大的组折射率的光子晶体线缺陷光波导的光延迟元件，并且在实际使用的宽波长区域中具有小或几乎恒定的组折射率的波长色散。 光延迟元件包括以光子晶体结构形成的线缺陷光波导，线缺陷光波导的体积小于单线缺陷光波导的体积。 因此，线缺陷光波导的波导带在线缺陷光波导的三阶色散曲线中具有两个零点，三阶色散曲线的符号在零点附近反转。 因此，线缺陷光波导的波导带被修改，能够扩大组折射率较大的波长区域，组折射率的小波长色散和光脉冲速度的小波长色散。

公开(公告)号：US07164532B2

公开(公告)日：2007-01-16

申请号：US10414047

申请日：2003-04-16

Applicant: Hiroyoshi Funato ,  Junichi Kitabayashi ,  Shigeru Oohchida ,  Tsuyoshi Suzudo

Inventor： Hiroyoshi Funato ,  Junichi Kitabayashi ,  Shigeru Oohchida ,  Tsuyoshi Suzudo

IPC: G02B5/18

CPC classification number: G11B7/1365 ,  G11B7/123 ,  G11B7/1275 ,  G11B7/1353 ,  G11B2007/0006

Abstract: A polarization diffraction grating includes two media having different orientation states arranged alternately and cyclically, wherein each boundary between the media forms an oblique rectangular shape.

Abstract translation: 偏振衍射光栅包括具有交替和循环布置的不同取向状态的两种介质，其中介质之间的每个边界形成倾斜的矩形形状。

公开(公告)号：US20060055993A1

公开(公告)日：2006-03-16

申请号：US11221979

申请日：2005-09-09

Applicant: Masanori Kobayashi ,  Hiroyuki Sugimoto ,  Kazuya Miyagaki ,  Hiroyoshi Funato

Inventor： Masanori Kobayashi ,  Hiroyuki Sugimoto ,  Kazuya Miyagaki ,  Hiroyoshi Funato

IPC: G03H1/02

CPC classification number: G03H1/202 ,  G02B5/32 ,  G03H1/02 ,  G03H1/0272 ,  G03H1/0486 ,  G03H2001/0264 ,  G03H2001/2276 ,  G03H2222/54 ,  G03H2227/04 ,  G03H2250/37 ,  G03H2260/12 ,  G03H2260/33 ,  G03H2270/54 ,  G11B7/1353 ,  G11B7/22

Abstract: A method of producing a hologram element is disclosed that is able to prevent spread of a polymerization reaction and light leakage during exposure with interference light, and improve productivity in mass production. The hologram element is for transmitting, reflecting, diffracting, or scattering incident light, and includes a pair of substrates, an isolation member between the substrates that forms an isolated region, and a photo-sensitive recording material sealed in the isolated region. The hologram element includes a periodic structure formed by exposing the recording material to interference light. The interference light is generated by two or more light beams, or by using a master hologram. The recording material is formed from a composite material including a polymerized polymer or a polymerized liquid crystal. The periodic structure is formed by exposing the recording material to the interference light to induce the polymerization reaction and phase separation in the composite material.

Abstract translation: 公开了一种制造全息元件的方法，其能够防止聚合反应的扩散和用干涉光曝光时的光泄漏，并提高批量生产的生产率。 全息元件用于透射，反射，衍射或散射入射光，并且包括一对基板，形成隔离区域的基板之间的隔离构件和密封在隔离区域中的光敏记录材料。 全息元件包括通过将记录材料暴露于干涉光而形成的周期性结构。 干涉光由两个或更多个光束或通过使用主全息图产生。 记录材料由包含聚合的聚合物或聚合液晶的复合材料形成。 通过将记录材料暴露于干涉光以引起复合材料中的聚合反应和相分离而形成周期性结构。

公开(公告)号：US06822771B2

公开(公告)日：2004-11-23

申请号：US10254635

申请日：2002-09-26

Applicant: Hiroyoshi Funato ,  Shigeru Oohchida

Inventor： Hiroyoshi Funato ,  Shigeru Oohchida

IPC: G02B532

CPC classification number: G11B7/1353 ,  G11B7/0901 ,  G11B7/0903 ,  G11B7/094 ,  G11B7/1275 ,  G11B7/1365 ,  G11B7/1381 ,  G11B2007/0006

Abstract: An optical pickup unit includes a light source of semiconductor laser chips of different light-emission wavelengths; a plurality of holograms placed between the light source and an optical recording medium, the holograms including at least one non-polarization hologram having a substantially uniform diffraction efficiency irrespective of the direction of polarization of incident light and at least one polarization hologram having a diffraction efficiency varying depending on the direction of polarization of incident light; and a wave plate provided between the optical recording medium and the polarization hologram. The returning beam of a light beam emitted from a selected one of the semiconductor laser chips is diffracted by the corresponding one of said holograms to be received by a light-receiving element. The wave plate turns the direction of polarization of the returning beam to a different direction from that of the emitted light beam.

Abstract translation: 光拾取单元包括不同发光波长的半导体激光芯片的光源; 放置在光源和光学记录介质之间的多个全息图，全息图包括至少一个具有基本上均匀的衍射效率的非偏振全息图，而与入射光的偏振方向无关，并且至少一个具有衍射效率的偏振全息图 根据入射光的偏振方向而变化; 以及设置在光学记录介质和偏振全息图之间的波片。 从所选择的一个半导体激光器芯片发射的光束的返回光束被相应的所述全息图衍射，以被光接收元件接收。 波片将返回光束的偏振方向与发射光束的方向不同。

公开(公告)号：US6072579A

公开(公告)日：2000-06-06

申请号：US379912

申请日：1999-08-24

Applicant: Hiroyoshi Funato

Inventor： Hiroyoshi Funato

IPC: G01B9/021

CPC classification number: G11B7/0903 ,  G01B9/021 ,  G02B5/203 ,  G11B7/0909 ,  G11B7/123 ,  G11B7/1275 ,  G11B7/131 ,  G11B7/1353 ,  G02B5/32 ,  G11B2007/0006

Abstract: An optical pickup apparatus includes first and second light sources which selectively emit one of first and second light beams, the first and second light beams being different in wavelength, the wavelengths of the first and second light beams being appropriate for accessing first and second optical disks respectively. A coupling lens converts a corresponding one of the first and second light beams into a collimated beam. An objective lens forms a light spot on a corresponding one of the first and second optical disks by focusing the collimated beam. A holographic optical element receives a reflection beam of the light spot from one of the first and second optical disks and provides holographic effects on the reflection beam so as to diffract the reflection beam in predetermined diffracting directions depending on the wavelength of the reflection beam. A photodetector receives the reflection beam from the holographic optical element at light receiving areas and outputs signals indicative of respective intensities of the received reflection beam at the light receiving areas, so that a focusing error signal and a tracking error signal are generated based on the signals.

公开(公告)号：US4987299A

公开(公告)日：1991-01-22

申请号：US397287

申请日：1989-08-23

Applicant: Hiroshi Kobayashi ,  Haruhiko Machida ,  Jun Akedo ,  Hiroyoshi Funato

Inventor： Hiroshi Kobayashi ,  Haruhiko Machida ,  Jun Akedo ,  Hiroyoshi Funato

IPC: G01D5/30 ,  G01D5/38 ,  G01P3/36 ,  G01P3/486 ,  G02B5/18

CPC classification number: G01P3/486 ,  G01P3/366 ,  G02B5/1861

Abstract: A rotation quantity measuring method and system measures a rotation quantity of an object body. The rotation quantity is measured by irradiating a light from a light source on a grating pattern which is formed on a peripheral surface of a cylindrical body which rotates integrally with the object body, and detecting a shadow picture pattern which is generated by a reflected light received from the grating pattern based on a diffraction caused by the grating pattern. Then, the rotation quantity of the object body is measured based on a movement of the shadow picture pattern as the object body rotates.

Abstract translation: 旋转量测量方法和系统测量物体的旋转量。 通过将光源照射在形成在与物体一体旋转的圆筒体的周面上形成的光栅图案上，并且检测由所接收的反射光产生的阴影图案，来测量旋转量 基于由光栅图案引起的衍射的光栅图案。 然后，基于物体旋转时的阴影图案的移动来测量物体的旋转量。

公开(公告)号：US4761046A

公开(公告)日：1988-08-02

申请号：US853780

申请日：1986-04-18

Applicant: Hiroyoshi Funato

Inventor： Hiroyoshi Funato

IPC: G02B26/10 ,  G03G15/01 ,  G06K15/12 ,  H04N1/12 ,  H04N1/203 ,  H04N1/50 ,  G02B5/32

CPC classification number: H04N1/1265 ,  G02B26/106 ,  G03G15/011 ,  G03G15/0194 ,  G06K15/1285 ,  G06K15/129 ,  H04N1/203 ,  H04N1/2038 ,  H04N1/506 ,  G03G2215/0119 ,  H04N1/12 ,  Y10S359/90

Abstract: A plurality of laser beams are applied to a scanning medium at different positions thereon and are converted thereby to respective scanning light beams. The laser beams are modulated by color image signals representative of respective differently colored images. As the scanning medium rotates, it deflects the applied laser beams and emits them as the scanning light beams. The scanning light beams are then applied to respective photosensitive bodies to scan them, forming latent images thereon which correspond to the color image signals, respectively. The latent images are developed into respective color images which are transferred and fixed to a single recording medium thereby to form a color image thereon.

Abstract translation: 多个激光束被施加到其上的不同位置的扫描介质上，并由此转换为相应的扫描光束。 激光束由表示相应不同颜色的图像的彩色图像信号调制。 当扫描介质旋转时，它使所施加的激光束偏转并将其作为扫描光束发射。 然后将扫描光束施加到相应的感光体上以对它们进行扫描，分别在其上形成与彩色图像信号对应的潜像。 将潜像显影成各自的彩色图像，这些图像被传送并固定到单个记录介质上，从而在其上形成彩色图像。

公开(公告)号：US4348080A

公开(公告)日：1982-09-07

申请号：US85486

申请日：1979-10-17

Applicant: Hiroyoshi Funato

Inventor： Hiroyoshi Funato

IPC: G02B5/32 ,  G02B26/10 ,  G02B27/17

CPC classification number: G02B26/106 ,  G02F1/33

Abstract: In an optical scanning apparatus, a hologram prepared by the interference of two rays of light, each of which has a spherical wave or one of which has a spherical wave and the other of which has a plane wave, is illuminated by a reconstruction light containing an image signal, and the reconstruction light and the hologram are moved relative to each other. A beam produced from the hologram in accordance with the relative movement of the hologram is led onto a surface to be scanned, while continuously changing its output angle, and plural beams containing image information therein, which are modulated by plural and different image signals, are caused to enter the hologram simultaneously. Plural beams are thus diffracted and plural lines on the surface to be scanned are scanned simultaneously.

Abstract translation: 在光学扫描装置中，通过具有球面波或其中一个具有球面波并且其中之一具有平面波的两束光的干涉而制备的全息图被包含 图像信号，并且重建光和全息图相对于彼此移动。 根据全息图的相对移动从全息图产生的光束被引导到待扫描的表面上，同时连续地改变其输出角度，并且其中包含由多个和不同图像信号调制的图像信息的多个光束是 导致同时进入全息图。 因此，多个光束被衍射，同时扫描待扫描表面上的多条线。