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    • 31. 发明授权
    • Optical pickup using split beams impinging on different photodetector
areas
    • 使用分光束的光学拾取器照射在不同的光电检测器区域上
    • US5661701A
    • 1997-08-26
    • US195881
    • 1994-02-04
    • Kiyonobu EndoKazuya MatsumotoTetsuro Kuwayama
    • Kiyonobu EndoKazuya MatsumotoTetsuro Kuwayama
    • G11B7/13G11B7/135G11B11/105G11B11/00G11B7/00
    • G11B7/131G11B11/10543G11B11/10576G11B7/1356
    • Optical pickup apparatus using split beams impinging on different photo-detector areas includes optical structure for projecting a light beam polarized in a predetermined direction toward a recording medium where information is recorded. Optical separating structure is provided for dividing a light beam reflected by the recording medium, with modulation of its polarization state in accordance with the recorded information, into first and second light beams which are polarized in directions perpendicular to each other. First and second light detectors respectively detect the first and second light beams. Preferably, a single lens is located between the separation structure and the first and second light detectors for converging the first and second light beams. Also preferably, the first and second light detectors are formed on the same substrate and are each divided into a plurality of light receiving areas. Further, an amplifier circuit is preferably formed on the same substrate as the first and second light detectors. Where the amplifier is a differential amplifier, it may produce an information signal by differentiating output signals of the first and second light detectors.
    • 使用撞击不同光检测器区域的分束的光拾取装置包括用于将沿预定方向偏振的光束朝向记录信息的记录介质投射的光学结构。 提供光分离结构,用于将由记录介质反射的光束根据记录信息调制其偏振状态,分割成彼此垂直的方向极化的第一和第二光束。 第一和第二光检测器分别检测第一和第二光束。 优选地,单个透镜位于分离结构和用于会聚第一和第二光束的第一和第二光检测器之间。 另外优选地,第一和第二光检测器形成在相同的基板上,并且被分成多个光接收区域。 此外,优选地,在与第一和第二光检测器相同的基板上形成放大器电路。 在放大器是差分放大器的地方,它可以通过区分第一和第二光检测器的输出信号来产生信息信号。
    • 32. 发明授权
    • Optical pickup using split beams impinging on different photo-detector
areas
    • 使用分光束的光学拾取器照射在不同的光电检测器区域上
    • US5416755A
    • 1995-05-16
    • US195882
    • 1994-02-04
    • Kiyonobu EndoKazuya MatsumotoTetsuro Kuwayama
    • Kiyonobu EndoKazuya MatsumotoTetsuro Kuwayama
    • G11B7/13G11B7/135G11B11/105G11B11/00
    • G11B7/131G11B11/10543G11B11/10576G11B7/1356
    • An optical pickup device for producing information magnetically recorded on a recording medium includes a light source for generating a light beam polarized in a predetermined direction. An object lens is provided for focusing the light beam generated from the light source onto the recording medium. A beam splitter is arranged in an optical path extending from the light source to the recording medium, the beam splitter having a reflection plane for reflecting the light beam from the light source toward the recording medium. The beam splitter simultaneously causes the reflecting light from the recording medium to pass through the reflection plane to separate the reflected light beam from the light beam irradiated toward the recording medium. The polarization state of the reflecting light beam is modulated in accordance with the recorded information. The beam splitter splits the reflected light beam passed through the reflection plane into first and second light beams both of which are polarized in directions perpendicular to each other. The beam splitter has a bi-refractive property. First and second detection circuits are also provided for detecting the first and second light beams, respectively, and for providing first and second detection outputs respectively corresponding thereto. Circuitry is also provided for differentiating the detection outputs from the first and second detection circuits to provide information signals.
    • 用于产生磁记录在记录介质上的信息的光拾取装置包括用于产生沿预定方向偏振的光束的光源。 提供了一种用于将从光源产生的光束聚焦到记录介质上的物镜。 分束器布置在从光源延伸到记录介质的光路中,分束器具有用于将来自光源的光束朝向记录介质反射的反射平面。 分束器同时使得来自记录介质的反射光通过反射平面,以将反射的光束从朝向记录介质照射的光束分离。 根据所记录的信息调制反射光束的偏振状态。 分束器将通过反射平面的反射光束分离成第一和第二光束,两者在垂直于彼此的方向上极化。 分束器具有双折射性质。 还提供第一和第二检测电路用于分别检测第一和第二光束,并提供分别对应于其的第一和第二检测输出。 电路还用于区分来自第一和第二检测电路的检测输出以提供信息信号。
    • 33. 发明授权
    • Color image detecting device
    • 彩色图像检测装置
    • US4315279A
    • 1982-02-09
    • US184753
    • 1980-09-08
    • Tetsuro KuwayamaKazuo Tanaka
    • Tetsuro KuwayamaKazuo Tanaka
    • H04N9/07H04N9/04
    • H04N9/04H04N9/045
    • A color image detecting device comprising a photodetector having a plurality of image element areas arranged one-dimensionally or two-dimensionally, an imaging optical system for forming an object image on the light-receiving surface of the photodetector, and a color filter disposed at a finite distance in front of said light-receiving surface and having a number of filter elements each having a spectrum transmissivity for obtaining a color signal, the filter elements being arranged substantially correspondingly to the image element areas, wherein, in order to correspond the filter elements of the color filter to the image element areas, the filter elements are successively deviated relative to the image element areas as the angle of incidence of the light beam incident on each of the image element areas is varied by the position of each of the image element areas from the optical axis of the imaging optical system.
    • 一种彩色图像检测装置,包括具有一维或二维布置的多个图像元素区域的光电检测器,用于在光电检测器的光接收表面上形成物体图像的成像光学系统,以及设置在 在所述光接收表面前面具有有限距离并且具有多个滤光元件,每个滤光元件具有用于获得彩色信号的光谱透射率,所述滤光元件基本上对应于所述图像元素区域布置,其中为了对应于所述滤光元件 滤色器相对于图像元素区域依次偏移,因为入射到每个图像元素区域上的光束的入射角由图像元素的每个图像元素的位置变化 来自成像光学系统的光轴的区域。
    • 34. 发明授权
    • Planar illumination device
    • 平面照明装置
    • US08408777B2
    • 2013-04-02
    • US12848350
    • 2010-08-02
    • Tetsuro KuwayamaHiromasa SuzukiMotosuke OhmiMasaru MinamiKanji Yokomizo
    • Tetsuro KuwayamaHiromasa SuzukiMotosuke OhmiMasaru MinamiKanji Yokomizo
    • F21V7/04F21V8/00
    • G02B6/0078
    • A planar illumination device includes: a light guide plate formed by arranging a plurality of unit light guide plates each having a light emission surface as a front surface and a reflection surface as a back surface so that facing end surfaces of adjacent unit light guide plates of the plurality of unit light guide plates are closely arranged; and one or two or more light sources arranged on a side surface, in a direction where the plurality of unit light guide plates are arranged, of each of the plurality of unit light guide plates, in which a projection section is arranged on one of facing surfaces of two adjacent unit light guide plates in the arrangement direction and a recession section in which the projection section is engaged is arranged on the other of the facing surfaces of the two adjacent unit light guide plates.
    • 平面照明装置包括:导光板,其通过将各个具有发光表面的多个单位导光板作为前表面和反射面设置为背面而形成,使得相邻单元导光板的相对端面相对于 多个单元导光板紧密排列; 以及一个或两个以上的光源,其布置在所述多个单位导光板中的每个所述多个单位导光板中的沿着所述多个单位导光板的方向的侧面上,其中突出部布置在所述多个单元导光板中的一个上 两个相邻单元导光板在排列方向上的表面和突出部分接合的凹陷部分布置在两个相邻的单元导光板的另一面对面上。
    • 35. 发明申请
    • DISPLAY DEVICE
    • 显示设备
    • US20120274667A1
    • 2012-11-01
    • US13421422
    • 2012-03-15
    • Tetsuro KuwayamaSatoshi Tomioka
    • Tetsuro KuwayamaSatoshi Tomioka
    • G09G3/36G09G5/10
    • G02F1/1336G09G3/3406G09G3/342G09G5/10G09G2310/024G09G2310/08G09G2320/0233G09G2320/0626G09G2320/064H04N13/341H05B37/0209
    • A display device includes: a transmission-type display member having a display area that is sequentially scanned; and an illumination member that is arranged on a rear face of the display member and includes a plurality of illumination units that are arranged so as to be aligned in a direction from one end portion side toward the other end portion side along a direction in which the display area is sequentially scanned. The illumination unit is in a light emitting state over a predetermined light emitting period after sequential scanning of display units formed from a portion of the display area, which corresponds to the illumination unit, is completed, and the illumination units are sequentially scanned from one end portion side to the other end portion side in accordance with the sequential scanning of the display area.
    • 显示装置包括:具有顺序扫描的显示区域的发送型显示部件; 以及照明部件,其布置在所述显示部件的后表面上,并且包括多个照明单元,所述多个照明单元被布置成沿着从所述一个端部侧朝向所述另一个端部侧的方向排列, 依次扫描显示区域。 在从对应于照明单元的显示区域的一部分形成的显示单元的顺序扫描完成之后,照明单元在预定的发光周期处于发光状态,并且照明单元从一端 根据显示区域的顺序扫描而将另一端部侧的一部分侧面。
    • 36. 发明授权
    • Planar illumination device
    • 平面照明装置
    • US08287172B2
    • 2012-10-16
    • US12848356
    • 2010-08-02
    • Tetsuro Kuwayama
    • Tetsuro Kuwayama
    • F21V7/04
    • G02B6/0018G02B6/0038
    • The planar illumination device includes: a light guide plate formed by arranging a plurality of unit light guide plates each having a light emission surface as a front surface and a reflection surface as a back surface so that facing end surfaces of adjacent unit light guide plates of the plurality of unit light guide plates are closely arranged; one or two or more light sources arranged on a first side surface, in a direction where the plurality of unit light guide plates are arranged, of each of the plurality of unit light guide plates; and a recessed-and-projected structure arranged on a second side surface, facing the light sources, of each of the plurality of unit light guide plates and having an edge parallel to a normal to the light emission surface.
    • 平面照明装置包括:导光板,其通过将具有发光面的各个单位导光板配置为前表面,将反射面配置为背面而形成,使得相邻的单位导光板的端面 多个单元导光板紧密排列; 多个单元导光板中的每一个布置在第一侧表面上的多个单元导光板的方向上的一个或两个或更多个光源; 以及布置在所述多个单位导光板中的每一个的面对所述光源的第二侧表面上并具有与所述发光表面的法线平行的边缘的凹凸投影结构。
    • 39. 发明申请
    • PLANAR ILLUMINATION DEVICE
    • 平面照明装置
    • US20110038177A1
    • 2011-02-17
    • US12848356
    • 2010-08-02
    • Tetsuro Kuwayama
    • Tetsuro Kuwayama
    • F21V8/00
    • G02B6/0018G02B6/0038
    • The planar illumination device includes: a light guide plate formed by arranging a plurality of unit light guide plates each having a light emission surface as a front surface and a reflection surface as a back surface so that facing end surfaces of adjacent unit light guide plates of the plurality of unit light guide plates are closely arranged; one or two or more light sources arranged on a first side surface, in a direction where the plurality of unit light guide plates are arranged, of each of the plurality of unit light guide plates; and a recessed-and-projected structure arranged on a second side surface, facing the light sources, of each of the plurality of unit light guide plates and having an edge parallel to a normal to the light emission surface.
    • 平面照明装置包括:导光板,其通过将具有发光面的各个单位导光板配置为前表面,将反射面配置为背面而形成,使得相邻的单位导光板的端面 多个单元导光板紧密排列; 多个单元导光板中的每一个布置在第一侧表面上的多个单元导光板的方向上的一个或两个或更多个光源; 以及布置在所述多个单位导光板中的每一个的面对所述光源的第二侧表面上并具有与所述发光表面的法线平行的边缘的凹凸投影结构。
    • 40. 发明授权
    • Method of making a hologram
    • 制作全息图的方法
    • US5455691A
    • 1995-10-03
    • US232413
    • 1994-04-25
    • Tetsuro KuwayamaYasuo Nakamura
    • Tetsuro KuwayamaYasuo Nakamura
    • G02B5/32G03H1/04G03H1/10
    • G02B5/32Y10S359/90
    • This specification discloses a method of making a hologram imaged substantially without aberrations during the use when the wavelength of a light during the making differs from the wavelength of a light during the use and having high diffraction efficiency. In order to eliminate any aberration occuring when the hologram is used in a light beam of a different wavelength and to obtain high diffraction efficiency, a making light beam is caused to enter a predetermined coaxial optical system from outside the axis thereof to impart a suitable aberration, and a hologram is formed on a hologram sensitive material by the making light beam.
    • 本说明书公开了一种制造在使用期间当光的波长与使用中的光的波长不同时具有高衍射效率的使用期间基本上没有像差的全息图的方法。 为了消除当在不同波长的光束中使用全息图时发生的任何像差并且获得高的衍射效率,使得使光束从轴的外侧进入预定的同轴光学系统以赋予适当的像差 并且通过制造光束在全息图敏感材料上形成全息图。