公开(公告)号：US5031978A

公开(公告)日：1991-07-16

申请号：US568409

申请日：1990-08-16

Applicant: Takashi Shibaguchi ,  Hiroyoshi Funato

Inventor： Takashi Shibaguchi ,  Hiroyoshi Funato

IPC: G06K15/12 ,  H04N1/036 ,  H04N1/113

CPC classification number: G06K15/1209 ,  H04N1/036 ,  H04N1/1135

Abstract: A recording optical system includes a semiconductor laser for emitting a light beam and a shutter device for changing the spot size of the light beam. The shutter device has a shutter array in which a plurality of shutter elements are arranged in a line, each of the shutter elements being controlled so as to be opened and shut in accordance with a gradational image. The recording optical system also has a deflection optical system for deflecting the light beam which passes through the shutter device and an image formation optical system for focusing the light beam which is deflected by the deflection optical system on a recording medium, so that the light beam scans the recording medium to form the image.

Abstract translation: 记录光学系统包括用于发射光束的半导体激光器和用于改变光束的光斑尺寸的快门装置。 快门装置具有快门阵列，其中多个快门元件被排成一行，每个快门元件根据渐变图像被控制为打开和关闭。 记录光学系统还具有用于偏转通过快门装置的光束的偏转光学系统和用于将由偏转光学系统偏转的光束聚焦在记录介质上的成像光学系统，使得光束 扫描记录介质以形成图像。

公开(公告)号：US4876680A

公开(公告)日：1989-10-24

申请号：US93368

申请日：1987-09-04

Applicant: Shigeyoshi Misawa ,  Hiroyoshi Funato

Inventor： Shigeyoshi Misawa ,  Hiroyoshi Funato

IPC: G11B7/12

CPC classification number: G11B7/124

Abstract: An optical pick-up for use in an optically information recording and reproducing apparatus is provided. The pick-up includes a substrate on which an optical waveguide layer is formed and a grating coupler is formed on the optical waveguide layer. Photosensors are also provided to receive light travelling along the waveguide from the grating coupler. A beam splitter is also formed on the substrate for splitting the light from the grating coupler into two separate light beams before reception by the photosensors. If the substrate is opaque, the substrate is formed with an opening through which light emitted from a light source passes. An objective lens is also provided for focusing the light emitted from the light source onto the information recording surface of an optical disc. A quarter wavelength plate may also be provided to change the nature of polarization of the light used.

Abstract translation: 提供了用于光学信息记录和再现装置的光学拾取器。 拾取器包括其上形成有光波导层的基板，并且在光波导层上形成光栅耦合器。 还提供光电传感器以接收从光栅耦合器沿着波导传播的光。 分束器也形成在基板上，用于在由光电传感器接收之前将来自光栅耦合器的光分成两个分开的光束。 如果基板是不透明的，则基板形成有从光源发射的光通过的开口。 还提供了一种物镜，用于将从光源发射的光聚焦到光盘的信息记录表面上。 也可以提供四分之一波长板来改变所使用的光的偏振特性。

公开(公告)号：US4712852A

公开(公告)日：1987-12-15

申请号：US870079

申请日：1986-06-03

Applicant: Hiroyoshi Funato ,  Nobuo Banba

Inventor： Hiroyoshi Funato ,  Nobuo Banba

IPC: G02B5/32 ,  G02B26/10 ,  G03H1/04

CPC classification number: G02B26/106

Abstract: A hologram disk for deflecting a light beam in a hologram scanner includes a plurality of straight-line gratings formed by holograms in an annular pattern for deflecting the light beam. The line-to-line distance d.theta. between adjacent lines of each of said straight-line gratings is determined to meet, at least approximately, the following equation when said each straight-line grating is rotated through an angle .theta.R: ##EQU1## where .lambda. is the wavelength of the light beam and .alpha. is a proportionality constant. Therefore, the angle .theta.s through which the light beam is deflected is expressed by .theta.s=.alpha..multidot..theta.R.

Abstract translation: 用于使全息扫描仪中的光束偏转的全息光盘包括由用于偏转光束的环形图案的全息图形成的多条直线光栅。 当所述每条直线光栅旋转角度θR时，确定每个所述直线光栅的相邻线之间的线间距离dθ至少近似满足以下等式： 其中λ是光束的波长，α是比例常数。 因此，光束被偏转的角度θ由θs =α×θR表示。

公开(公告)号：US4149269A

公开(公告)日：1979-04-10

申请号：US837493

申请日：1977-09-28

Applicant: Michiharu Abe ,  Hiroyoshi Funato

Inventor： Michiharu Abe ,  Hiroyoshi Funato

IPC: G11C13/04 ,  G11C7/00 ,  G11C8/00

CPC classification number: G11C13/046 ,  G11C13/04

Abstract: A large number of closely spaced holograms are formed on a sheet, each hologram comprising an information portion and an identification portion. First scan means movably position the sheet relative to a reconstruction beam and a sensor means for reading a selected hologram. The sensor means reads the identification portion of the reconstructed hologram to determine whether said hologram is the selected hologram. If said hologram is the selected hologram, a second scan means is actuated to read the information area. If said hologram is not the selected hologram, the first scan means is actuated to move to the next hologram. The process is continued until the selected hologram is located. The identification area further comprises a density reference section which is read to produce a bias reference signal for combination with the information signals. In digital applications the bias reference signal establishes the quantization threshold. In analog applications the bias reference signal establishes the bias point for differential amplification.

Abstract translation: 在片材上形成大量紧密间隔的全息图，每个全息图包括信息部分和识别部分。 第一扫描装置可移动地将纸张相对于重建光束定位，以及用于读取所选择的全息图的传感器装置。 传感器装置读取重建的全息图的识别部分，以确定所述全息图是否是所选择的全息图。 如果所述全息图是所选择的全息图，则启动第二扫描装置以读取信息区域。 如果所述全息图不是所选择的全息图，则第一扫描装置被致动以移动到下一个全息图。 该过程一直持续到所选择的全息图位于。 识别区域还包括密度参考部分，其被读取以产生用于与信息信号组合的偏置参考信号。 在数字应用中，偏置参考信号建立量化阈值。 在模拟应用中，偏置参考信号建立差分放大的偏置点。

公开(公告)号：US09188674B2

公开(公告)日：2015-11-17

申请号：US13930030

申请日：2013-06-28

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

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

IPC: G01C3/08 ,  G01S17/02 ,  G01S7/481

CPC classification number: G01S17/02 ,  G01S7/4817

Abstract: Disclosed is a laser radar device including a modulated light beam generator that emits light beams to a target, a photodetector that receives reflected light; a reflected light condenser that condenses the reflected light; a rotator that rotates around a rotation axis; and mirrors included in the rotator that scan the light beams, and guide the reflected light to the reflected light condenser, wherein an angular detection range in a vertical direction is divided into a plurality of layers, wherein mirror surfaces of the mirrors are tilted by corresponding tilt angles relative to the rotation axis, the tilt angles being different from each other, wherein the modulated light beam generator emits the light beams in the vertical direction, the light beams having different emission angles, and wherein a difference between the emission angles corresponds to the angular detection range of one layer in the vertical direction.

Abstract translation: 公开了一种激光雷达装置，其包括向目标发射光束的调制光束发生器，接收反射光的光电检测器; 聚光反射光的反射光聚光器; 围绕旋转轴旋转的旋转体; 以及包括在扫描光束的旋转体中的反射镜，并将反射光引导到反射光聚光器，其中垂直方向上的角度检测范围被分成多个层，其中反射镜的镜面被相应的 相对于旋转轴的倾斜角度，倾斜角度彼此不同，其中调制光束发生器沿垂直方向发射光束，光束具有不同的发射角，并且其中发射角之间的差对应于 垂直方向上一层的角度检测范围。

公开(公告)号：US08587774B2

公开(公告)日：2013-11-19

申请号：US12696216

申请日：2010-01-29

Applicant: Hiroyoshi Funato ,  Shigeaki Imai ,  Koji Masuda ,  Hidemasa Suzuki

Inventor： Hiroyoshi Funato ,  Shigeaki Imai ,  Koji Masuda ,  Hidemasa Suzuki

IPC: G01C3/08

CPC classification number: G01S17/58 ,  G01P3/68 ,  G01P3/806 ,  G03G15/011 ,  G03G15/0194 ,  G03G2215/00645 ,  G03G2215/0129 ,  G03G2215/0141 ,  G03G2215/0196

Abstract: A velocity detecting device includes an image-pattern acquiring unit that includes a laser light source and an area sensor that acquires a one-dimensional or a two-dimensional image. The image-pattern acquiring unit includes a lens between a moving member and the area sensor, irradiates a beam emitted from the laser light source to the moving member to make a scattering light of the moving member scattered from the moving member on the area sensor by using the lens, and acquires an image pattern at a predetermined time interval in association with movement of the moving member. A velocity calculating unit calculates the velocity of the moving member by computing the image pattern acquired by the image-pattern acquiring unit. The lens is a reduced optical system that projects a reduced object onto the area sensor.

Abstract translation: 速度检测装置包括图像图案获取单元，其包括激光源和获取一维或二维图像的区域传感器。 图像图案获取单元包括在移动构件和区域传感器之间的透镜，将从激光源发射的光束照射到移动构件，以使移动构件的散射光从区域传感器上的移动构件散射， 使用透镜，并且以与移动构件的移动相关联的预定时间间隔获取图像图案。 速度计算单元通过计算由图像模式获取单元获取的图像图案来计算移动构件的速度。 透镜是将减少的物体投影到区域传感器上的缩小的光学系统。

公开(公告)号：US20080297870A1

公开(公告)日：2008-12-04

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 ,  G02F1/13

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 the 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 通过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使光束偏转 不同的定时，使得光束扫描不同的表面。

公开(公告)号：US20060083472A1

公开(公告)日：2006-04-20

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 ,  G02B6/26

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：US5208800A

公开(公告)日：1993-05-04

申请号：US683724

申请日：1991-04-11

Applicant: Tami Isobe ,  Shigeyoshi Misawa ,  Kiyoshi Yokomori ,  Syunsuke Fujita ,  Magane Aoki ,  Yoshinobu Nakayama ,  Hiroyoshi Funato

Inventor： Tami Isobe ,  Shigeyoshi Misawa ,  Kiyoshi Yokomori ,  Syunsuke Fujita ,  Magane Aoki ,  Yoshinobu Nakayama ,  Hiroyoshi Funato

IPC: G02B6/126 ,  G02B6/42 ,  G11B7/12 ,  G11B11/10 ,  G11B11/105

CPC classification number: G02B6/126 ,  G11B11/10543 ,  G11B7/124

Abstract: A magneto-optical signal detection device comprising a thin film type optical waveguide unit having a substrate on which a waveguide is formed. The unit has a coupling portion for coupling two polarization components simultaneously in a same plane of the waveguide as a TE mode and a TM mode. The modes TE and TM are included in reflection light reflected from a magneto-optical recording medium and perpendicular to each other. The unit also has a TE-TM mode separating portion having a taper boundary. A waveguide layer is gradually thinned in the taper boundary toward an outer end thereof.

Abstract translation: 一种磁光信号检测装置，包括具有形成波导的基板的薄膜型光波导单元。 该单元具有用于在波导的同一平面中同时耦合两个偏振分量的耦合部分，如TE模式和TM模式。 模式TE和TM包括在从磁光记录介质反射并且彼此垂直的反射光中。 该单元还具有具有锥形边界的TE-TM模式分离部。 波导层在锥形边界中朝向其外端逐渐变薄。

公开(公告)号：US4678263A

公开(公告)日：1987-07-07

申请号：US788528

申请日：1985-10-21

Applicant: Hiroyoshi Funato

Inventor： Hiroyoshi Funato

IPC: G02B5/18 ,  G02B5/32 ,  G02B13/00 ,  G02B26/10 ,  G03G15/04 ,  H04N1/113 ,  H04N1/23 ,  G02B26/08

CPC classification number: G02B13/0005 ,  G02B26/106

Abstract: A photo scanner device including a rotary disk having a plurality of holograms thereon and arranged in at least two concentric circles with respect to the axis of rotation of the disk, and a light source which generates a beam of light which is incident on the disk at a selected radial distance which may be varied so as to illuminate the holograms arranged on a selected concentric circle. The holograms on the same concentric circle each subtend the same angle from the axis, and the holograms on different concentric circles subtend different angles from the axis, thereby permitting the angle of scan to be switched by selection of the radial distance at which the beam of light is incident.

Abstract translation: 一种照相扫描器装置，包括：旋转盘，其上具有多个全息图并且相对于盘的旋转轴线布置在至少两个同心圆中;以及光源，其产生入射在盘上的光束 可选择的径向距离可以变化以照亮布置在所选择的同心圆上的全息图。 相同同心圆上的全息图与轴对齐相同的角度，并且不同同心圆上的全息图对应与轴的不同角度，从而允许通过选择径向距离来切换扫描角度， 光是事件。