公开(公告)号：US20050111516A1

公开(公告)日：2005-05-26

申请号：US10982053

申请日：2004-11-04

Applicant: Takuji Hatano ,  Yuichiro Ori ,  Katsuya Yagi ,  Yuichi Atarashi

Inventor： Takuji Hatano ,  Yuichiro Ori ,  Katsuya Yagi ,  Yuichi Atarashi

IPC: G11B7/125 ,  G11B7/00 ,  G11B7/1263 ,  G11B7/135 ,  G11B7/1372 ,  G11B7/1392 ,  G11B7/1395 ,  G11B7/1398 ,  H01S3/08

CPC classification number: G11B7/1263 ,  G11B7/13925 ,  G11B7/1395 ,  G11B7/1398 ,  G11B2007/0006 ,  G11B2007/13727

Abstract: An optical pickup apparatus detects optical information by making a laser beam in a 405 nm wavelength band emitted from a semiconductor laser light source incident on an optical information recording medium and then making the laser beam reflected from the optical information recording medium incident on a photodetector. The optical pickup apparatus has a polarizing beam splitter including a polarizing beam splitting film that forms an optical path from the semiconductor laser light source to the optical information recording medium by reflecting the s-polarized component of the laser beam and that forms an optical path from the optical information recording medium to the photodetector by transmitting the p-polarized component of the laser beam; and a monitoring sensor that receives the laser beam to monitor the laser output intensity of the semiconductor laser light source. The polarizing beam splitter transmits part of the s-polarized component, and the monitoring sensor receives this part of the s-polarized component in a position where the center line of the effective light beam received by the monitoring sensor does not coincide with the principal ray of that part of the s-polarized component.

Abstract translation: 光拾取装置通过使入射在光信息记录介质上的半导体激光光源发射的405nm波长带中的激光束，并使从光信息记录介质反射的激光束入射到光电检测器上来检测光信息。 光拾取装置具有偏振分束器，该偏振光束分离器包括偏振分束膜，该偏振分束膜通过反射激光束的s偏振分量形成从半导体激光源到光信息记录介质的光路，并形成光路 通过透射激光束的p偏振分量将光学信息记录介质传送到光电检测器; 以及监测传感器，其接收激光束以监测半导体激光光源的激光输出强度。 偏振光束分离器透射部分s偏振分量，监测传感器接收该偏振分量的该部分，其中监测传感器接收的有效光束的中心线与主光线不一致 的那部分s偏振分量。

公开(公告)号：US20050001975A1

公开(公告)日：2005-01-06

申请号：US10845421

申请日：2004-05-13

Applicant: Jun Ishihara ,  Kohtaro Hayashi ,  Yuichiro Ori

Inventor： Jun Ishihara ,  Kohtaro Hayashi ,  Yuichiro Ori

IPC: G02B5/18 ,  G02B27/00 ,  G02B27/10 ,  G02F1/13

CPC classification number: G02B27/1073 ,  G02B5/1814 ,  G02B5/3016 ,  G02B27/0927 ,  G02B27/1013 ,  G02B27/1086 ,  G02B27/123 ,  G02B27/142 ,  G02B27/283 ,  G02B27/286 ,  G02B27/4261 ,  G02B27/4272 ,  H04N9/3108 ,  H04N9/3167

Abstract: A thin and light optical device satisfactorily separates light components having different properties. A blazed grating is formed on a surface of a flat-plate-shaped transparent substrate, and a separation coating that reflects or transmits incident light according to the properties of the incident light is provided on the blazed grating. The thus obtained optical device offers a function of separating light into reflected light and transmitted light, and also has a function of diffracting or refracting the thus separated light. As the separation coating, a polarization separation film, dichroic film, angle separation film, or chiral nematic liquid crystal layer is used to separate linearly polarized light components having different polarization planes, light components having different wavelengths, light components incident at different angles of incidence, or circularly polarized light components having different rotation directions.

公开(公告)号：US06643300B1

公开(公告)日：2003-11-04

申请号：US09629762

申请日：2000-07-31

Applicant: Yuichiro Ori

Inventor： Yuichiro Ori

IPC: H01S310

CPC classification number: H01S3/005 ,  H01S5/005

Abstract: A laser irradiation optical system includes a dividing means for dividing a first entering laser beam once, and producing a plurality of second laser beams having beam widths equal to the beam which of the first laser beam and advancing in mutually different directions, a condensing means for condensing for condensing each second laser beam to mutually advance in near the same direction; and a shaping means for converting the intensity distribution of a cross section perpendicular to the optical path of each second laser beam in the optical paths of the mutually separated second laser beams.

Abstract translation: 激光照射光学系统包括用于将第一进入激光束分成一次的分割装置，并且产生多个第二激光束，其具有等于第一激光束中的哪一个并且沿彼此不同的方向前进的光束宽度;冷凝装置， 冷凝用于冷凝每个第二激光束以在相同方向上相互前进; 以及成形装置，用于在相互分离的第二激光束的光路中转换垂直于每个第二激光束的光路的横截面的强度分布。

公开(公告)号：US06359719B1

公开(公告)日：2002-03-19

申请号：US09362372

申请日：1999-07-28

Applicant: Yuichiro Ori

Inventor： Yuichiro Ori

IPC: G02F103

CPC classification number: G02B3/005 ,  G02B5/1885 ,  G02B5/201 ,  G02B27/1086 ,  G02F1/133504 ,  G02F1/133526 ,  G02F1/133553 ,  G02F2201/305 ,  G02F2203/34 ,  G03H1/0248 ,  G03H1/04 ,  G03H2001/0415 ,  G03H2001/0434 ,  G03H2001/0439 ,  G03H2001/2271

Abstract: An optical modulator has a spectral means for diffracting white illumination light into light of predetermined wavelength bands, a liquid crystal layer for modulating the intensity of the light entering a plurality of two-dimensional pixels, a condensing means for condensing the light spectrally diffracted by the spectral means so as to direct the light to each pixel of the liquid crystal layer, and a reflecting means for reflecting the light that passes through the liquid crystal layer in approximately the same direction as the entering light.

Abstract translation: 光调制器具有用于将白色照明光衍射为预定波长带的光的光谱装置，用于调制进入多个二维像素的光的强度的液晶层，用于将由 光束装置，以将光引导到液晶层的每个像素;以及反射装置，用于反射与入射光大致相同的方向通过液晶层的光。

公开(公告)号：US06343862B1

公开(公告)日：2002-02-05

申请号：US09439168

申请日：1999-11-12

Applicant: Yasumasa Sawai ,  Kohtaro Hayashi ,  Soh Ohzawa ,  Yuichiro Ori ,  Jun Ishihara

Inventor： Yasumasa Sawai ,  Kohtaro Hayashi ,  Soh Ohzawa ,  Yuichiro Ori ,  Jun Ishihara

IPC: G02B2708

CPC classification number: G02B3/06 ,  G02B3/0056 ,  G02B3/0062 ,  G02B3/0068 ,  G03B21/006 ,  G03B21/14 ,  G03B21/208

Abstract: A projecting image display device is disclosed which includes a display and a micro lens array, where the pixels of the display and the micro lens elements each have non symmetric properties in length and width directions. The micro lens concentrates color-separated light onto pixels of a display device so that light does not hit the black matrix. By providing a display having pixels which are not equal in length and width, pixels corresponding to red (R), green (G) and blue (B) can be arranged in a substantially square area, and by providing a micro lens array which has non symmetric properties in length and width, the color separated light can be concentrated onto the non square display pixels.

Abstract translation: 公开了一种投影图像显示装置，其包括显示器和微透镜阵列，其中显示器和微透镜元件的像素在长度和宽度方向上各自具有不对称的特性。 微透镜将颜色分离的光聚焦到显示装置的像素上，使得光不撞击黑矩阵。 通过提供具有不同长度和宽度的像素的显示器，可以将基本上为正方形的区域布置在与红色（R），绿色（G）和蓝色（B）对应的像素上，并且通过提供具有 长度和宽度上的非对称性质，分色光可以集中在非正方形显示像素上。

公开(公告)号：US06236515B1

公开(公告)日：2001-05-22

申请号：US09294762

申请日：1999-04-19

Applicant: Yasushi Yamamoto ,  Yuichiro Ori

Inventor： Yasushi Yamamoto ,  Yuichiro Ori

IPC: G02B1514

CPC classification number: G02B15/161

Abstract: A zoom lens system has the first and second lens units. During zooming from a wide-angle end to a telephoto end, the lens units are moved to decrease a distance therebetween. The first lens unit has a positive refractive power. The second lens unit has a negative refractive power. The zoom lens system is provided with at least one surface having a power to diffract light.

Abstract translation: 变焦透镜系统具有第一和第二透镜单元。 在从广角端到长焦端的变焦期间，透镜单元被移动以减小它们之间的距离。 第一透镜单元具有正折光力。 第二透镜单元具有负折光力。 变焦透镜系统设置有至少一个具有衍射光的能力的表面。

公开(公告)号：US07379411B2

公开(公告)日：2008-05-27

申请号：US10952150

申请日：2004-09-27

Applicant: Kazunari Tada ,  Junji Hashimura ,  Yuichiro Ori

Inventor： Kazunari Tada ,  Junji Hashimura ,  Yuichiro Ori

IPC: G11B7/135

CPC classification number: G02B27/0966 ,  G02B19/0014 ,  G02B19/0052 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/1398

Abstract: In a beam shaping device for converting the laser light emitted from a semiconductor laser light source from an elliptic beam to a circular beam, the light-entrance-side and light-exit-side surfaces of the beam shaping device both have a curvature only in the minor-axis direction of the cross section of the elliptic beam. Of the light-entrance-side and light-exit-side surfaces, one is a circular-arc cylindrical surface and the other is a non-circular-arc cylindrical surface. The beam shaping device fulfills prescribed conditions with respect to the center thickness, surface shapes, and/or other features.

Abstract translation: 在用于将从半导体激光源发射的激光从椭圆光束转换成圆形光束的光束整形装置中，光束成形装置的光入射侧和光出射侧表面仅在 椭圆梁的横截面的短轴方向。 在光入射侧和光出射侧表面中，一个是圆弧形圆柱形表面，另一个是非圆弧形圆柱形表面。 光束成形装置相对于中心厚度，表面形状和/或其他特征实现规定的条件。

公开(公告)号：US07116493B2

公开(公告)日：2006-10-03

申请号：US10952282

申请日：2004-09-27

Applicant: Kazunari Tada ,  Junji Hashimura ,  Yuichiro Ori

Inventor： Kazunari Tada ,  Junji Hashimura ,  Yuichiro Ori

IPC: G02B3/02 ,  G02B13/08

CPC classification number: G02B27/0966 ,  G02B19/0014 ,  G02B19/0052

Abstract: In a beam shaping device for converting the laser light emitted from a semiconductor laser light source from an elliptic beam to a circular beam, the light-entrance-side and light-exit-side surfaces of the beam shaping device both have a curvature only in the major-axis direction of the cross section of the elliptic beam. Of the light-entrance-side and light-exit-side surfaces, one is a circular-arc cylindrical surface and the other is a non-circular-arc cylindrical surface.

Abstract translation: 在用于将从半导体激光源发射的激光从椭圆光束转换成圆形光束的光束整形装置中，光束成形装置的光入射侧和光出射侧表面仅在 椭圆形横截面的长轴方向。 在光入射侧和光出射侧表面中，一个是圆弧形圆柱形表面，另一个是非圆弧形圆柱形表面。

公开(公告)号：US07075615B2

公开(公告)日：2006-07-11

申请号：US10845421

申请日：2004-05-13

Applicant: Jun Ishihara ,  Kohtaro Hayashi ,  Yuichiro Ori

Inventor： Jun Ishihara ,  Kohtaro Hayashi ,  Yuichiro Ori

IPC: G02F1/13 ,  G02F1/1335 ,  G02B5/30 ,  G02B5/18

CPC classification number: G02B27/1073 ,  G02B5/1814 ,  G02B5/3016 ,  G02B27/0927 ,  G02B27/1013 ,  G02B27/1086 ,  G02B27/123 ,  G02B27/142 ,  G02B27/283 ,  G02B27/286 ,  G02B27/4261 ,  G02B27/4272 ,  H04N9/3108 ,  H04N9/3167

Abstract: A thin and light optical device satisfactorily separates light components having different properties. A blazed grating is formed on a surface of a flat-plate-shaped transparent substrate, and a separation coating that reflects or transmits incident light according to the properties of the incident light is provided on the blazed grating. The thus obtained optical device offers a function of separating light into reflected light and transmitted light, and also has a function of diffracting or refracting the thus separated light. As the separation coating, a polarization separation film, dichroic film, angle separation film, or chiral nematic liquid crystal layer is used to separate linearly polarized light components having different polarization planes, light components having different wavelengths, light components incident at different angles of incidence, or circularly polarized light components having different rotation directions.

Abstract translation: 薄且轻的光学装置令人满意地分离具有不同特性的光成分。 在平板状透明基板的表面上形成闪耀的光栅，并且在闪光光栅上设置根据入射光的特性反射或透射入射光的分离涂层。 由此获得的光学器件具有将光分离成反射光和透射光的功能，并且还具有衍射或折射这样分离的光的功能。 作为分离涂层，使用偏光分离膜，二向色膜，角度分离膜或手性向列液晶层来分离具有不同偏振面的线偏振光成分，具有不同波长的光成分，以不同入射角入射的光成分 或具有不同旋转方向的圆偏振光分量。

公开(公告)号：US20050063282A1

公开(公告)日：2005-03-24

申请号：US10942460

申请日：2004-09-16

Applicant: Kyu Takada ,  Junji Hashimura ,  Yuichiro Ori ,  Toru Kimura

Inventor： Kyu Takada ,  Junji Hashimura ,  Yuichiro Ori ,  Toru Kimura

IPC: G02B5/18 ,  G11B7/00 ,  G11B7/135 ,  G11B7/1353 ,  G11B7/1367 ,  G11B7/1392

CPC classification number: G11B7/1353 ,  G02B3/08 ,  G02B13/003 ,  G02B13/0045 ,  G02B13/0055 ,  G02B13/0065 ,  G11B7/1367 ,  G11B7/13922 ,  G11B7/13925 ,  G11B2007/0006

Abstract: An optical pickup apparatus includes a diffractive optical element, and an objective lens that focuses a light beam of a first wavelength λ1, a light beam of a second wavelength λ2 and a light beam of a third wavelength λ3 on a first recording medium, a second recording medium, and a third recording medium, respectively, the wavelengths λ1, λ2, and λ3 being different from each other. The diffractive optical element includes a first diffractive surface that neither diffracts the light beam of the first wavelength λ1 nor the light beam of the third wavelength λ3 but diffracts the light beam of the second wavelength λ2, and a second diffractive surface that neither diffracts the light beam of the first wavelength λ1 nor the light beam of the second wavelength λ2 but diffracts the light beam of the third wavelength λ3, and each of the first and second diffractive surfaces satisfies the following condition inequality: Λ/λ≧8 wherein A represents the minimum pitch in the case that the width which generates a phase difference of one wavelength when the closest wavefronts resulting from adjacent steps in each of the diffractive surfaces are linked with each other is defined as one pitch, and λ represents the wavelength of the diffracted light.

Abstract translation: 光拾取装置包括衍射光学元件和将第一波长λ1的光束，第二波长λ2的光束和第三波长λ3的光束的光束聚焦在第一记录介质上的物镜，第二 记录介质和第三记录介质，波长λ1，λ2和λ3彼此不同。 衍射光学元件包括：第一衍射面，其既不衍射第一波长λ1的光束也不衍射第三波长λ3的光束，但衍射第二波长λ2的光束;以及第二衍射面，其不衍射光 第一波长λ1的光束和第二波长λ2的光束，但衍射第三波长λ3的光束，并且第一和第二衍射面中的每一个满足以下条件不等式：λλ= 8其中A表示 当在每个衍射表面中由相邻步骤产生的最接近的波前相互连接时产生一个波长的相位差的宽度的情况下的最小间距被定义为一个间距，并且λ表示衍射的波长 光。