公开(公告)号：US06854857B2

公开(公告)日：2005-02-15

申请号：US10359719

申请日：2003-02-07

申请人： Yasushi Hara ,  Hiroshi Yamada ,  Hirokazu Aritake ,  Akira Tanaka ,  Makoto Abe

发明人： Yasushi Hara ,  Hiroshi Yamada ,  Hirokazu Aritake ,  Akira Tanaka ,  Makoto Abe

IPC分类号： G02B6/00 ,  F21V8/00 ,  F21Y101/02 ,  F21Y103/00 ,  G02B5/00 ,  G02B5/02 ,  G02F1/13357 ,  F21V5/00

CPC分类号： G02B6/0031 ,  G02B6/0038 ,  G02B6/005 ,  G02B6/0068 ,  G02F1/133615 ,  G02F2001/133607

摘要： An electronic apparatus includes a liquid crystal display device. The liquid crystal display device comprises first and second light sources, a light guide plate, and a liquid crystal unit. The first light source is disposed on one of two opposing side surfaces of the light guide plate. The second light source is disposed on the other of the two opposing side surfaces of the light guide plate. A first plurality of substantially parallel grooves are formed in a first surface of the light guide plate which is substantially parallel with a display surface of the liquid crystal unit. A second plurality of substantially parallel grooves are formed in a second surface opposing the first surface of the light guide plate. At least one of a dimension and density of the first plurality of grooves substantially monotonically changes from one in the vicinity of one of the light sources to one in the vicinity of the other of the light sources.

摘要翻译： 电子设备包括液晶显示装置。 液晶显示装置包括第一和第二光源，导光板和液晶单元。 第一光源设置在导光板的两个相对的侧表面之一上。 第二光源设置在导光板的两个相对的侧表面中的另一个上。 在导光板的与液晶单元的显示面基本平行的第一表面上形成有多个大致平行的槽。 在与导光板的第一表面相对的第二表面中形成第二多个基本上平行的凹槽。 第一多个凹槽的尺寸和密度中的至少一个基本上单独地从一个光源附近的一个变化到另一个光源附近。

公开(公告)号：US06885360B2

公开(公告)日：2005-04-26

申请号：US10092309

申请日：2002-03-07

申请人： Yasushi Hara ,  Keiichi Murakami ,  Hiroshi Yamada ,  Hideyuki Motoyama ,  Hirokazu Aritake ,  Toshiaki Yoshihara ,  Shinji Tadaki

发明人： Yasushi Hara ,  Keiichi Murakami ,  Hiroshi Yamada ,  Hideyuki Motoyama ,  Hirokazu Aritake ,  Toshiaki Yoshihara ,  Shinji Tadaki

IPC分类号： G02F1/13357 ,  F21V8/00 ,  F21Y101/02 ,  F21Y103/00 ,  G02F1/133 ,  G09G3/20 ,  G09G3/34 ,  G09G3/36

CPC分类号： G09G3/3406 ,  G02F1/133615 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2330/02 ,  G09G2330/021

摘要： A backlight device for a transmissive liquid crystal display device includes a plurality of light sources, including a cold cathode fluorescent lamp and an LED, a liquid crystal panel, and a light guide plate. The light guide plate causes light entering into it through one surface thereof to emerge out of another surface thereof toward the liquid crystal panel. A controller for the backlight device selects at least one of the cold cathode fluorescent lamp and LED, depending on brightness required for the liquid crystal display device and determines, in accordance with the required brightness, the brightness of the selected light source to operate the light source accordingly.

摘要翻译： 用于透射型液晶显示装置的背光装置包括多个光源，包括冷阴极荧光灯和LED，液晶面板和导光板。 导光板使其通过其一个表面进入其中的光从其另一表面向液晶面板出射。 用于背光装置的控制器根据液晶显示装置所需的亮度选择冷阴极荧光灯和LED中的至少一个，并且根据所需的亮度确定所选择的光源的亮度以操作光 相应地来源。

公开(公告)号：US07591580B2

公开(公告)日：2009-09-22

申请号：US12252720

申请日：2008-10-16

申请人： Satoshi Maeda ,  Hirokazu Aritake ,  Takao Satake ,  Susumu Fujiwara

发明人： Satoshi Maeda ,  Hirokazu Aritake ,  Takao Satake ,  Susumu Fujiwara

IPC分类号： F21V7/04 ,  G02F1/1335 ,  G02B27/10

CPC分类号： G02B6/0046 ,  G02B3/005 ,  G02B3/06 ,  G02B6/0025 ,  G02B6/0038 ,  G02B6/0068 ,  G02B6/0073

摘要： In the lighting device, cylindrical lenses are provided on a reflection surface side of a light guide plate, and the adjacent cylindrical lenses are connected by a concaved curved surface.

摘要翻译： 在照明装置中，在导光板的反射面侧设置柱面透镜，并且相邻的柱面透镜通过凹曲面连接。

公开(公告)号：US20050140835A1

公开(公告)日：2005-06-30

申请号：US11064461

申请日：2005-02-23

申请人： Satoshi Maeda ,  Hirokazu Aritake

发明人： Satoshi Maeda ,  Hirokazu Aritake

IPC分类号： F21V8/00 ,  G02F1/13357 ,  G02F1/135

CPC分类号： G02B6/0018 ,  G02B6/0028 ,  G02B6/0038 ,  G02B6/0046 ,  G02B6/005 ,  G02B6/0068

摘要： An illuminating device comprises a pair of light sources and a rod-like photoconductor. The rod-like photoconductor includes a pair of planes of incidence entered by the light from the light sources, a reflection surface having a plurality of prisms and an exit plane located opposite to the reflection surface. The width between the reflection surface and the exit plane at the planes of incidence of the rod-like photoconductor is smaller than the width of the light sources in the same direction. As a result, the brightness distribution of the light exiting from the rod-like photoconductor becomes uniform. The illuminating device is combined with a plate-like photoconductor to make up a planar illuminating device. Also, the illuminating device is combined with a liquid crystal panel to make up a liquid crystal display apparatus.

摘要翻译： 照明装置包括一对光源和棒状光电导体。 杆状光电导体包括由来自光源的光入射的一对入射平面，具有多个棱镜的反射面和与反射面相对的出射面。 杆状光电导体的入射面处的反射面与出射面的宽度比同一方向的光源的宽度小。 结果，从杆状光电导体射出的光的亮度分布变得均匀。 照明装置与板状光电导体组合以构成平面照明装置。 此外，照明装置与液晶面板组合以构成液晶显示装置。

公开(公告)号：US06559910B2

公开(公告)日：2003-05-06

申请号：US09225631

申请日：1999-01-05

申请人： Toshihiro Suzuki ,  Tetsuya Kobayashi ,  Takeshi Gotoh ,  Tetsuya Hamada ,  Keiji Hayashi ,  Mari Sugawara ,  Hisashi Yamaguchi ,  Junji Tomita ,  Hirokazu Aritake

发明人： Toshihiro Suzuki ,  Tetsuya Kobayashi ,  Takeshi Gotoh ,  Tetsuya Hamada ,  Keiji Hayashi ,  Mari Sugawara ,  Hisashi Yamaguchi ,  Junji Tomita ,  Hirokazu Aritake

IPC分类号： G02F11335

CPC分类号： G02F1/133621 ,  G02F1/133526 ,  G02F2001/133623 ,  G02F2201/122 ,  G02F2201/305

摘要： The display device includes a spatial modulator having a plurality of pixels and a periodical structural body having condenser elements corresponding to the pixels of the spatial modulator. Each of the pixels of the spatial modulator includes a plurality of color dots arranged in a first direction. A length of a peripheral region of the respective pixel encircling the plurality of color dots, measured in the first direction, is longer than a length of the condenser element of the periodical structural body, measured in the first direction. In addition, combinations of the pixels in the square, delta or mosaic arrangement with the condenser elements in the square, delta or mosaic arrangement are disclosed.

公开(公告)号：US6091544A

公开(公告)日：2000-07-18

申请号：US847316

申请日：1997-04-23

申请人： Shinya Hasegawa ,  Shigeo Kayashima ,  Satoshi Maeda ,  Hirokazu Aritake

发明人： Shinya Hasegawa ,  Shigeo Kayashima ,  Satoshi Maeda ,  Hirokazu Aritake

IPC分类号： G02B5/32 ,  G02B26/10 ,  G03H1/12 ,  G02B5/18

CPC分类号： G02B5/32 ,  G02B26/106 ,  G03H1/0005

摘要： A high-resolution light-beam scanning apparatus utilizing only mass-producible holograms instead of utilizing auxiliary optical systems such as optical lenses or a mirror having curvature, and capable of compensating for disadvantages including scanning beam thickening and variation, failure of a rotatable hologram to rotate at a constant velocity, displacement of a scanning beam position in the scanning direction and the cross scanning direction due to a mode hop of a wavelength of a semiconductor laser, and deviation of a base of rotatable hologram from a parallel state. These disadvantages are detrimental to efforts for increasing the resolution of a hologram scanner and lowering the cost thereof. The light beam scanning apparatus includes at least two holograms with one being fixed and the other rotatable, where a rate of variation of a direction cosine of an object wave recorded on the fixed plate and taken in a scanning direction of the light on the scanning surface is configured to be different from a rate of variation of a direction cosine of the object wave recorded on the fixed plate and taken in a cross scanning direction of the light on the scanning surface, and focal distances of a light incident on said rotatable hologram are configured to be different in the scanning direction and in the cross scanning direction.

摘要翻译： 仅利用大规模生产的全息图的高分辨率光束扫描装置，而不是利用诸如光学透镜或具有曲率的反射镜等辅助光学系统，并且能够补偿包括扫描光束增厚和变化的缺点，可旋转全息图的故障 以恒定速度旋转，由于半导体激光器的波长的模式跳跃而导致的扫描光束位置在扫描方向和横扫描方向上的位移以及可旋转全息图的基底与平行状态的偏离。 这些缺点对于增加全息扫描仪的分辨率并降低其成本的努力是有害的。 光束扫描装置包括至少两个全息图，一个是固定的，另一个是可旋转的，其中记录在固定板上的物体波的方向余弦的变化率在扫描表面上的光的扫描方向上 被配置为不同于记录在固定板上并沿扫描表面上的光的横扫描方向拍摄的物体波的方向余弦变化率，并且入射在所述可旋转全息图上的光的焦距为 被配置为在扫描方向和横扫描方向上不同。

公开(公告)号：US6020984A

公开(公告)日：2000-02-01

申请号：US838987

申请日：1997-04-23

申请人： Shinya Hasegawa ,  Shigeo Kayashima ,  Satoshi Maeda ,  Hirokazu Aritake

发明人： Shinya Hasegawa ,  Shigeo Kayashima ,  Satoshi Maeda ,  Hirokazu Aritake

IPC分类号： G02B5/32 ,  G02B26/10 ,  G03H1/12

CPC分类号： G02B5/32 ,  G02B26/106 ,  G03H1/0005

摘要： A high-resolution light-beam scanning apparatus utilizing only mass-producible holograms instead of utilizing auxiliary optical systems such as an optical lens or a mirror having curvature, and capable of compensating for disadvantages including scanning beam thickening and variation, failure of a rotatable hologram to rotate at a constant velocity, displacement of a scanning beam position in the scanning direction and the cross scanning direction due to a mode hop of a wavelength of a semiconductor laser, and deviation of a base of a rotatable hologram from a parallel state, which disadvantages are detrimental to efforts for increasing the resolution of a hologram scanner and lowering the cost thereof, the light-beam scanning apparatus being characterized in that provided in the rotatable hologram (1) and the fixed plate (2) arediffraction gratings for minimizing:either a sum total of values obtained by weighting:a square of an optical path length difference between a) an optical path of a light flux measured along a principal axis MA of a light beam incident on and diffracted by a diffraction grating (1a) of a rotatable hologram (1), and incident on and diffracted by a diffraction grating (2a) of a fixed plate (2) so as to conduct a scanning and converging on a scanning point k on an image formation surface (4), and b) an optical path of a light flux measured along a marginal ray M1 distanced from the principal axis MA; or an absolute value of the optical path difference thereof,the weighting being conducted at every scanning position covering an entire range of the image formation surface (4),or a sum total of values obtained by weighting:a square of a sum obtained by adding: an amount of displacement of a light beam convergent on a scanning point k on the image formation surface (4), which displacement is measured along the marginal ray M1 distanced from the principal axis MA of an incident reconstructing light flux with respect to the principal axis MA of a phase of the diffraction grating (1a) of the rotatable hologram (1); to an amount of displacement of the same light, which displacement is measured with respect to the principal axis MA of a phase recorded on the diffraction grating (2a) when the light flux is incident on the fixed plate (2); or by weighting an absolute value of the sum,the weighting being conducted at every scanning position covering an entire range of an image formation surface.

公开(公告)号：US5995250A

公开(公告)日：1999-11-30

申请号：US847315

申请日：1997-04-23

申请人： Shinya Hasegawa ,  Shigeo Kayashima ,  Satoshi Maeda ,  Hirokazu Aritake

发明人： Shinya Hasegawa ,  Shigeo Kayashima ,  Satoshi Maeda ,  Hirokazu Aritake

IPC分类号： G02B5/32 ,  G02B26/10 ,  G03H1/12

CPC分类号： G02B5/32 ,  G02B26/106 ,  G03H1/0005

摘要： A method of manufacturing a fixed hologram plate of a light-beam scanning apparatus for diffracting a light incident from a light source portion by a rotatable hologram, scanning by the diffracted light through the rotation of the rotatable hologram, diffracting the resulting light by the fixed hologram plate, and for conducting a light-beam scanning on a scanning surface. The method includes the steps of preparing an interference fringe distribution of the fixed hologram plate by two waves: a first wave having a spherical aberration, a transverse aberration of the first wave is in the Y direction, the transverse wave including an astigmatism and a coma; and a second wave having a spherical aberration and astigmatism, and having a wavelength different from a wavelength of a reconstructing wave that is selected to minimize distortion, wherein a transverse aberration of the second wave is in the X direction.

摘要翻译： 一种制造光束扫描装置的固定全息板的方法，用于通过可旋转的全息图衍射从光源部分入射的光，通过可旋转全息图的旋转被衍射光扫描，将所得到的光衍射成固定的 全息图板，并用于在扫描表面上进行光束扫描。 该方法包括以下步骤：通过两波制备固定全息图板的干涉条纹分布：具有球面像差的第一波，第一波的横向像差在Y方向上，横波包括散光和彗差 ; 以及具有球面像差和像散的第二波，并且具有与被选择为使失真最小化的重构波的波长不同的波长，其中第二波的横向像差处于X方向。

公开(公告)号：US5872590A

公开(公告)日：1999-02-16

申请号：US832781

申请日：1997-04-04

申请人： Hirokazu Aritake ,  Manabu Ishimoto ,  Junji Tomita ,  Satoshi Maeda ,  Takahiro Matsuda ,  Satoshi Iwata ,  Masato Nakashima

发明人： Hirokazu Aritake ,  Manabu Ishimoto ,  Junji Tomita ,  Satoshi Maeda ,  Takahiro Matsuda ,  Satoshi Iwata ,  Masato Nakashima

IPC分类号： G02B27/00 ,  G02B27/22 ,  H04N13/00 ,  H04N13/04

CPC分类号： H04N13/0278 ,  G02B27/0093 ,  G02B27/225 ,  H04N13/0014 ,  H04N13/0022 ,  H04N13/0404 ,  H04N13/0409 ,  H04N13/0418 ,  H04N13/0456 ,  H04N13/0459 ,  H04N13/047 ,  H04N13/0475 ,  H04N13/0477 ,  H04N13/0497 ,  H04N13/0048 ,  H04N13/0055 ,  H04N13/0059 ,  H04N13/0239 ,  H04N13/0257 ,  H04N13/0289 ,  H04N13/0434 ,  H04N13/0438 ,  H04N13/0443

摘要： A position of an observer in a stereoscopic observing region is detected by a position detecting unit. A right-eye image and a left-eye image which are seen from the detecting position are formed by an image forming unit and displayed on a display. By setting an aperture position of a projection optical system, the right-eye image is projected to the right-eye position of the observer and the left-eye image is projected to the left-eye position, thereby allowing a stereoscopic image to be observed. Further, an aperture is set so as to project the right-eye image or left-eye image to a position different from the detecting position of the observer, thereby allowing a same image to be seen to both eyes of another observer and allowing a two-dimensional image to be observed.

摘要翻译： 通过位置检测单元检测立体观察区域中的观察者的位置。 从检测位置看到的右眼图像和左眼图像由图像形成单元形成并显示在显示器上。 通过设置投影光学系统的光圈位置，将右眼图像投影到观察者的右眼位置，并将左眼图像投影到左眼位置，从而允许观察立体图像 。 此外，设置孔径以将右眼图像或左眼图像投影到与观察者的检测位置不同的位置，从而允许对另一观察者的双眼观察到相同的图像，并允许两个 要观察的三维图像。

公开(公告)号：US5477348A

公开(公告)日：1995-12-19

申请号：US191716

申请日：1994-02-04

申请人： Fumio Yamagishi ,  Satoshi Maeda ,  Hiroyuki Ikeda ,  Masayuki Kato ,  Hirokazu Aritake

发明人： Fumio Yamagishi ,  Satoshi Maeda ,  Hiroyuki Ikeda ,  Masayuki Kato ,  Hirokazu Aritake

IPC分类号： G02B5/32 ,  G03H1/00

CPC分类号： G02B5/32 ,  G03H2001/261 ,  G03H2270/21

摘要： An achromatic hologram optical system for converting a wave front A into a wave front B. Two holograms (H.sub.1 and H.sub.2) are provided. The length of an optical path from an equiphase front of the wave front A to an equiphase front of the wave front B is constant, and each of the two holograms has a curved surface shape.

摘要翻译： 一种用于将波前A转换成波前B的消色差全息光学系统。提供两个全息图（H1和H2）。 从波前A的同相前方到波前B的相位前方的光路的长度是恒定的，并且两个全息图中的每一个具有曲面形状。