专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07164532B2 Diffraction grating, light source unit applying the same therein, and optical head device employing the same 有权
$Diffraction grating, light source unit applying the same therein, and optical head device employing the same$
标题翻译：衍射光栅，其中施加其的光源单元，以及采用该衍射光栅的光学头装置
公开(公告)号：US07164532B2
公开(公告)日：2007-01-16
申请号：US10414047
申请日：2003-04-16
申请人： Hiroyoshi Funato , Junichi Kitabayashi , Shigeru Oohchida , Tsuyoshi Suzudo
发明人： Hiroyoshi Funato , Junichi Kitabayashi , Shigeru Oohchida , Tsuyoshi Suzudo
IPC分类号： G02B5/18
CPC分类号： G11B7/1365 , G11B7/123 , G11B7/1275 , G11B7/1353 , G11B2007/0006
摘要： 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.
摘要翻译：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。

2. 发明授权

US06822771B2 Optical pickup unit and optical disk drive for accurate and stable information recording and reproduction 有权
标题翻译：光学拾取单元和光盘驱动器，用于准确和稳定的信息记录和再现
公开(公告)号：US06822771B2
公开(公告)日：2004-11-23
申请号：US10254635
申请日：2002-09-26
申请人： Hiroyoshi Funato , Shigeru Oohchida
发明人： Hiroyoshi Funato , Shigeru Oohchida
IPC分类号： G02B532
CPC分类号： G11B7/1353 , G11B7/0901 , G11B7/0903 , G11B7/094 , G11B7/1275 , G11B7/1365 , G11B7/1381 , G11B2007/0006
摘要： 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.
摘要翻译：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。

3. 发明授权

US09304228B2 Object detection apparatus with detection based on reflected light or scattered light via an imaging unit 有权
标题翻译：通过成像单元检测基于反射光或散射光的物体检测装置
公开(公告)号：US09304228B2
公开(公告)日：2016-04-05
申请号：US13955230
申请日：2013-07-31
申请人： Tadashi Nakamura , Shigeaki Imai , Shuichi Suzuki , Mitsuru Nakajima , Kenichi Yoshimura , Hiroyoshi Funato
发明人： Tadashi Nakamura , Shigeaki Imai , Shuichi Suzuki , Mitsuru Nakajima , Kenichi Yoshimura , Hiroyoshi Funato
IPC分类号： G02B27/10 , G01V8/22 , G01S7/481 , G02B26/12
CPC分类号： G01V8/22 , G01S7/4817 , G02B26/123
摘要： 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.
摘要翻译：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。

4. 发明授权

US5684779A Optical head with forward and reflected light beams propagating through a dual diffraction grating device along a common path 失效
$Optical head with forward and reflected light beams propagating through a dual diffraction grating device along a common path$
标题翻译：具有正向和反射光束的光头，沿着公共路径传播通过双衍射光栅装置
公开(公告)号：US5684779A
公开(公告)日：1997-11-04
申请号：US585437
申请日：1996-01-11
申请人： Shigeru Ohuchida , Hiroyoshi Funato
发明人： Shigeru Ohuchida , Hiroyoshi Funato
IPC分类号： G11B7/09 , G11B7/12 , G11B7/135
CPC分类号： G11B7/1356 , G11B7/123 , G11B7/1353 , G11B7/0912
摘要： An optical head which records data onto an optical data recording medium and reproduces the data therefrom includes a laser light source, a collimator lens, an objective lens, a light splitting device arranged between the laser light source and the objective lens, for splitting the emitted light from the laser light and a reflected light from the optical data recording medium. A diffraction grating is provided to which only the reflected light split at the light splitting device is incident to, and which leads the reflected light split at the optical element onto a photo-detector. Thereby, an optical head of high effectiveness in utilization of light and low cost can be obtained.
摘要翻译：将数据记录到光学数据记录介质上并再现其数据的光学头包括激光光源，准直透镜，物镜，配置在激光光源和物镜之间的分光装置，用于将发射来自激光的光和来自光学数据记录介质的反射光。提供衍射光栅，仅在分光装置处分离的反射光入射到该衍射光栅上，并且将衍射光栅引导到光检测器处。由此，可以获得光利用效率低，成本低的光头。

5. 发明授权

US5481636A Wavelength conversion element 失效
标题翻译：波长转换元件
公开(公告)号：US5481636A
公开(公告)日：1996-01-02
申请号：US230243
申请日：1994-04-20
申请人： Hiroaki Fukuda , Hiroyoshi Funato , Shigeyoshi Misawa
发明人： Hiroaki Fukuda , Hiroyoshi Funato , Shigeyoshi Misawa
IPC分类号： G02B6/12 , G02F1/377 , G02B6/10 , H01S3/10
CPC分类号： G02F1/3775 , G02B2006/12045 , G02B2006/12142
摘要： A wavelength conversion element includes a substrate made of LiTaO.sub.3 of non-linear medium, a three-dimensional waveguide formed in the substrate and a second harmonic generation portion for defining a change in refractive index in the waveguide with a period .LAMBDA. and generating a second harmonic of a fundamental wave introduced into the wave guide, where .LAMBDA.=2 m.pi./{.beta.(2.omega.)-2.beta.(.omega.)}, m is a natural number, .omega. is a frequency of fundamental harmonic, .beta.(.omega.) is a propagation constant of the fundamental wave, and .beta.(2.omega.) is a propagation constant of second harmonic.
摘要翻译：波长转换元件包括由非线性介质的LiTaO 3构成的衬底，形成在衬底中的三维波导和用于限定波长中的折射率随时间LAMBDA产生二次谐波的二次谐波产生部分引入波导的基波，其中LAMBDA = 2m pi / {β（2ω）-2β（ω）}，m是自然数，ω是基波的频率，β（ω）是基波的传播常数，β（2ω）是二次谐波的传播常数。

6. 发明授权

US5402154A Optical recording system capable of changing the beam size 失效
标题翻译：能够改变光束尺寸的光学记录系统
公开(公告)号：US5402154A
公开(公告)日：1995-03-28
申请号：US925858
申请日：1992-08-07
申请人： Takashi Shibaguchi , Hiroyoshi Funato
发明人： Takashi Shibaguchi , Hiroyoshi Funato
IPC分类号： G02F1/055 , H04N1/40 , B41J2/435
CPC分类号： H04N1/40037 , G02F1/0551 , G02F1/0555
摘要： An optical shutter device comprises an electro-optic layer of a material that shows the electro-optic Kerr effect, an array of shutter regions defined on the electro-optic layer for controlling a passage of an optical beam through the layer, a plurality of electrodes provided on the electro-optic layer in correspondence to the shutter regions for applying a predetermined electric field upon energization, a driver circuit connected to each pair of the electrodes for energizing the same independently from each other, a biasing circuit connected to the plurality of electrodes for applying a predetermined d.c. bias voltage thereto, a switching circuit for inverting the polarity of the d.c. bias voltage, a first polarizing device provided above the electro-optic layer for causing a rotation of the polarizing plane of the optical beam in a first angular direction, and a second polarizing device provided below the electro-optic layer for causing a rotation of the polarizing plane of the optical beam in a second, opposite angular direction.
摘要翻译：光学快门装置包括显示电光克尔效应的材料的电光层，限定在电光层上的用于控制光束通过该层的通道的快门区阵列，多个电极设置在电光层上，对应于用于在通电时施加预定电场的快门区域;驱动器电路，其连接到每对电极，用于彼此独立地激励相同的电极;偏置电路，连接到多个电极用于施加预定直流偏置电压，用于反转直流的极性的开关电路。设置在电光层上方的第一偏振装置，用于使第一角度方向上的光束的偏振平面旋转，以及设置在电光层下方的第二偏振装置，用于使光束的旋转光束的偏振平面在第二相反的角度方向上。

7. 发明授权

US4637679A Multibeam photoscanner 失效
标题翻译：多边形照相机
公开(公告)号：US4637679A
公开(公告)日：1987-01-20
申请号：US513091
申请日：1983-07-12
申请人： Hiroyoshi Funato
发明人： Hiroyoshi Funato
IPC分类号： G02B26/10 , G02B26/12 , G02B27/10 , H04N1/113 , H04N1/19
CPC分类号： G02B27/1073 , G02B26/106 , G02B26/123 , H04N1/19
摘要： In a laser printer or the like, for the purpose of increasing a recording speed, the number of revolutions of a laser beam deflector is not increased but a plurality of scanning lines are simultaneously scanned. To this end, a plurality of laser beams with an angle of incidence slightly varied are simultaneously incident upon one and the same laser beam deflector. In the event that places for installation of a plurality of light sources are hindered each other by other light sources, light sources different in polarization surface from each other are used, and when beams are combined by means of a polarization beam combiner, a combined beam which is different in angle of emergence through a fine angle each other can be obtained without loss of light.
摘要翻译：在激光打印机等中，为了提高记录速度，不增加激光束偏转器的转数，而是同时扫描多条扫描线。为此，具有入射角稍微变化的多个激光束同时入射在同一个激光束偏转器上。在多个光源的安装场所被其他光源相互阻碍的情况下，使用偏光面彼此不同的光源，并且当通过偏振光束组合器组合光束时，组合光束可以在不损失光的情况下获得彼此通过细小角度的出射角度不同的角度。

8. 发明授权

US08373736B2 Optical scanning device and image forming apparatus 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US08373736B2
公开(公告)日：2013-02-12
申请号：US12534896
申请日：2009-08-04
申请人： Hiroyoshi Funato , Kazunori Bannai , Daisuke Imaki , Yoshinori Hayashi , Makoto Hirakawa
发明人： Hiroyoshi Funato , Kazunori Bannai , Daisuke Imaki , Yoshinori Hayashi , Makoto Hirakawa
IPC分类号： B41J15/14 , B41J27/00
CPC分类号： G02B26/123 , G02B26/125 , G02B27/283 , G03G15/011 , G03G15/04036 , G03G15/0435 , G03G2215/0404
摘要： P-polarized light beam passing through an fθ lens passes through a polarization beam splitter, is converted into S-polarized light beam by a quarter-wave plate and a reflecting mirror, re-enters the polarization beam splitter, and is reflected at the polarization beam splitter in the −Z direction. An optical path of a light beam between a polygon mirror and the fθ lens, between the fθ lens and the polarization beam splitter, between the polarization beam splitter and the quarter-wave plate, between the quarter-wave plate and a reflecting mirror, between the reflecting mirror and the quarter-wave plate, and between the quarter-wave plate and the polarization beam splitter are in the same plane.
摘要翻译： P偏振光束通过f＆thetas; 透镜通过偏振分束器，通过四分之一波片和反射镜转换成S偏振光束，重新进入偏振分束器，并在-Z方向上在偏振分束器处反射。多面镜与光束之间的光束的光路; 镜头，镜头之间; 透镜和偏振分束器之间，在偏振分束器和四分之一波片之间，在四分之一波片和反射镜之间，在反射镜和四分之一波片之间，以及四分之一波片与偏振分束器在同一平面内。

9. 发明申请

US20100310284A1 VELOCITY DETECTING DEVICE AND MULTI-COLOR IMAGE FORMING APPARATUS 有权
标题翻译：速度检测装置和多色图像形成装置
公开(公告)号：US20100310284A1
公开(公告)日：2010-12-09
申请号：US12696216
申请日：2010-01-29
申请人： Hiroyoshi Funato , Shigeaki Imai , Koji Masuda , Hidemasa Suzuki
发明人： Hiroyoshi Funato , Shigeaki Imai , Koji Masuda , Hidemasa Suzuki
IPC分类号： G03G15/01 , G06K9/00
CPC分类号： G01S17/58 , G01P3/68 , G01P3/806 , G03G15/011 , G03G15/0194 , G03G2215/00645 , G03G2215/0129 , G03G2215/0141 , G03G2215/0196
摘要： 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.
摘要翻译：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。

10. 发明授权

US07177258B2 Optical pickup apparatus, optical data recording/reproducing apparatus, and optical data recording/reproducing method 有权
标题翻译：光学拾取装置，光学数据记录/再现装置和光学数据记录/再现方法
公开(公告)号：US07177258B2
公开(公告)日：2007-02-13
申请号：US10971033
申请日：2004-10-25
申请人： Shigeru Ohuchida , Hiroyoshi Funato
发明人： Shigeru Ohuchida , Hiroyoshi Funato
IPC分类号： G11B7/135
CPC分类号： G11B7/1263 , G11B7/123 , G11B7/1275 , G11B7/131 , G11B7/1353 , G11B7/1362 , G11B7/1381 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup apparatus used in an optical data recording/reproducing apparatus for reading/reproducing data on an optical recording medium, including a light source, a diffracting device configured to transmit a light beam and to diffract a light beam reflected from the optical recording medium, an optical device having a reflecting portion and a transmitting portion configured to reflect one part of the light beam emitted from the light source and to transmit another part of the light beam to the optical recording medium and from the optical recording medium, and a photodetecting device to detect the light beam from the optical recording medium for signal light detection, and the light beam reflected by the reflecting portion of the optical device for monitor light detection of the light source.
摘要翻译：一种光学拾取装置，用于光学数据记录/再现装置中，用于在包括光源的光学记录介质上读取/再现数据，构造成透射光束并衍射从光学记录介质反射的光束的衍射装置，具有反射部分和透射部分的光学器件，其被配置为反射从光源发射的光束的一部分，并将光束的另一部分传输到光学记录介质和光学记录介质，以及光电检测用于检测来自用于信号光检测的光学记录介质的光束的装置，以及由光学装置的反射部分反射的光束，用于光源的监视光检测。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式