公开(公告)号：US5648951A

公开(公告)日：1997-07-15

申请号：US415764

申请日：1995-04-03

申请人： Makoto Kato ,  Yoshiaki Komma ,  Shin-ichi Kadowaki ,  Yoshikazu Hori ,  Seiji Nishino ,  Tetsuo Saimi

发明人： Makoto Kato ,  Yoshiaki Komma ,  Shin-ichi Kadowaki ,  Yoshikazu Hori ,  Seiji Nishino ,  Tetsuo Saimi

IPC分类号： G02B5/18 ,  G02B5/32 ,  G02B27/00 ,  G11B7/09 ,  G11B7/12 ,  G11B7/13 ,  G11B7/135 ,  G11B7/00

CPC分类号： G11B7/131 ,  G02B27/0037 ,  G02B27/4238 ,  G02B27/4277 ,  G02B5/1819 ,  G02B5/1857 ,  G02B5/32 ,  G11B7/094 ,  G11B7/123 ,  G11B7/1353 ,  G11B7/0912

摘要： Disclosed is a compact optical pick-up head apparatus suitable for mass-production, which comprises a light radiation source, an element composed of photodetector split into a plurality of regions and integrated on the same base, an objective lens for focusing a beam from the above source on an optical disk, a blazed hologram integrated to the support member of the lens, a means for driving the support member to which the objective lens and blazed hologram are integrated in response to an output as servo signal output from the photodetector which receives a diffracted beam produced in such a manner that a return beam reflected or diffracted by the optical disk is incident on the objective lens integrated with the above hologram. The optical pickup apparatus according to the present invention employs a region-split-type phase hologram in which a pair of Flesnel zone plate-like patterns, by which a plurality of diffraction wavefronts having a different focus and the same diffraction order are produced outside an optical-axis, are non-superimposedly formed. The above hologram can be blazed with a pinpoint accuracy by lithography using a few mask patterns synthesized by a computer, and further a more preferably blazing can be realized by the combination of the ion beam etching and the lithography. Accordingly, not only noise caused by an unnecessary diffracted beam component but also the offset of a servo signal can be restrained and the size of the objective lens can be reduced by the integration of the entire optical system, which greatly contributes to the superminiaturization of an optical head.

摘要翻译： 公开了一种适用于批量生产的紧凑型光学拾取头装置，其包括光辐射源，由分离成多个区域并集成在同一基底上的光电检测器构成的元件，用于将来自 在光盘上的源极上，与透镜的支撑构件集成的闪耀的全息图，用于驱动支撑构件的装置，物镜和闪耀的全息图响应于作为从接收到的光电检测器输出的伺服信号的输出而被集成到该支撑构件上 以使得由光盘反射或衍射的返回光束入射到与上述全息图集成的物镜上的方式产生的衍射光束。 根据本发明的光学拾取装置采用区域分割型相位全息图，其中一对Flesnel区域板状图案，其中具有不同焦点和相同衍射级的多个衍射波前在外部产生 光轴不叠加地形成。 通过使用由计算机合成的几个掩模图案通过光刻可以使上述全息图以精确的准确度闪耀，并且还可以通过离子束蚀刻和光刻的组合来实现更好的燃烧。 因此，不仅可以抑制由不必要的衍射光束分量引起的噪声，而且可以抑制伺服信号的偏移，并且可以通过整个光学系统的整合来减小物镜的尺寸，这极大地有助于使 光头。

公开(公告)号：US5644413A

公开(公告)日：1997-07-01

申请号：US501351

申请日：1995-07-12

申请人： Yoshiaki Komma ,  Sadao Mizuno ,  Makoto Kato ,  Hidenori Wada ,  Seiji Nishino

发明人： Yoshiaki Komma ,  Sadao Mizuno ,  Makoto Kato ,  Hidenori Wada ,  Seiji Nishino

IPC分类号： G02B5/18 ,  G02B5/32 ,  G11B7/09 ,  G11B7/125 ,  G11B7/135

CPC分类号： G11B7/1353 ,  G02B5/1876 ,  G02B5/32 ,  G11B7/126 ,  G11B7/127 ,  G11B7/1359 ,  G11B7/1376 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/0912 ,  Y10S359/90

摘要： An optical head apparatus consists of a semiconductor laser for radiating a light beam, a first collimator lens for collimating the light beam, a wedge-like prism for reshaping the light beam, a beam splitter for transmitting the light beam in an outgoing path and splitting the light beam in an incoming path, an objective lens for converging the light beam at an information medium in which information is stored, a plane type of hologram lens integrally formed with the objective lens for excessively correcting chromatic aberration of the objective lens to cancel out chromatic aberration of the collimator lens, a second collimator lens for converging the light beam split, a photo detector for detecting intensity of the light beam converged to obtain an information signal and servo signals, and an actuating unit for slightly moving the objective lens and the hologram lens according to the servo signals. A wavelength of the light beam is lengthened as intensity of the light beam is increased. Even though an astigmatic difference occurs in the semiconductor laser, the change of a focal length of the collimator lens cancels out the change of the astigmatic difference to prevent the occurrence of astigmatic aberration.

摘要翻译： 光头装置由用于照射光束的半导体激光器，用于准直光束的第一准直透镜，用于整形光束的楔形棱镜，用于在输出路径中传输光束的分束器和分离器 入射路径中的光束，用于在存储信息的信息介质处会聚光束的物镜，与物镜整体形成的平面型全息透镜，用​​于过度校正物镜的色差以抵消 准直透镜的色差，用于会聚光束的第二准直透镜，用于检测会聚的光束的强度的光检测器，以获得信息信号和伺服信号，以及用于使物镜稍微移动的致动单元 全息透​​镜根据伺服信号。 当光束的强度增加时，光束的波长被延长。 即使在半导体激光器中出现散像差异，准直透镜的焦距的变化抵消像散差的变化，从而防止散光像差的发生。

公开(公告)号：US5398308A

公开(公告)日：1995-03-14

申请号：US945936

申请日：1992-09-17

申请人： Makoto Kato ,  Shinichiro Miyaoka ,  Makoto Nohmi

发明人： Makoto Kato ,  Shinichiro Miyaoka ,  Makoto Nohmi

IPC分类号： G06F3/048 ,  G06F19/00 ,  G06T1/00 ,  G06T11/80 ,  G06T13/00 ,  G06F15/62

CPC分类号： G06T1/0021 ,  G06T2201/0051

摘要： An image simulation method and system which is capable of preparing images in a simple way by running image editing tools without programming by a compiler language. The image simulation system includes a computer system for preparing an embedded image in a way that parts of a digital image or the image textures or patterns are embedded in any of several digital background images, with its geometrical shape deformed, or with color data changed as needed, or for preparing an image, color data of which are changed at particular portions thereof. The system further includes circuitry for changing the geometrical shape in preparing the embedded image, for changing the color data, for designating embedding positions, and for storing selection data for the image to be embedded, selection data for the background image, and control data for the images and such processes, and for reproducing the images on the basis of the data set up in advance.

摘要翻译： 一种图像模拟方法和系统，其能够通过运行图像编辑工具以简单的方式准备图像，而不用编译语言进行编程。 该图像模拟系统包括用于以数字图像的一部分或图像纹理或图案嵌入几个数字背景图像中的任何一个中，其几何形状变形或颜色数据变为 或用于准备图像的颜色数据在其特定部分改变。 该系统还包括用于在准备嵌入图像时改变几何形状的电路，用于改变颜色数据，用于指定嵌入位置，以及用于存储要嵌入的图像的选择数据，用于背景图像的选择数据和用于背景图像的控制数据 图像和这些处理，并且用于基于预先设置的数据再现图像。

公开(公告)号：US5357533A

公开(公告)日：1994-10-18

申请号：US35957

申请日：1993-03-23

申请人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Makoto Kato ,  Hisanao Sato ,  Hiroaki Yamamoto

发明人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Makoto Kato ,  Hisanao Sato ,  Hiroaki Yamamoto

IPC分类号： G02F1/37 ,  G02F1/355 ,  G02F1/361 ,  G02F1/377 ,  H01S3/109 ,  H01S5/00 ,  H01S3/10

CPC分类号： B82Y20/00 ,  G02F1/3775 ,  G02F1/3551 ,  G02F1/361 ,  G02F2201/06 ,  G02F2202/20

摘要： The wavelength tolerance of a frequency doubler is enhanced so as to perform stable operation. Further, with the use of this frequency doubler, a laser source can directly modulate a laser. A waveguide and a periodic domain inverted layer are formed on an LiTaO.sub.3 substrate of -C plate, and the waveguide is divided into a plurality of zones having different propagation constants. A fundamental wave inputted in the waveguide is converted into a harmonic wave in each of the zones, and is emitted as SHG light. Parts for modulating the phases of the harmonic waves produced in the respective zones are provided between the zones.

摘要翻译： 提高倍频器的波长容差，从而稳定运行。 此外，通过使用该倍频器，激光源可以直接调制激光器。 在-C板的LiTaO 3衬底上形成波导和周期性畴反转层，并且波导被分成具有不同传播常数的多个区域。 在波导中输入的基波被转换为每个区域中的谐波，并作为SHG光发射。 用于调制在各个区域中产生的谐波的相位的部分设置在这些区域之间。

公开(公告)号：US5313543A

公开(公告)日：1994-05-17

申请号：US7881

申请日：1993-01-22

申请人： Kaoru Matsuda ,  Kazuhisa Yamamoto ,  Makoto Kato

发明人： Kaoru Matsuda ,  Kazuhisa Yamamoto ,  Makoto Kato

IPC分类号： G02F1/35 ,  G02F1/377 ,  G02F1/37

CPC分类号： G02F1/377 ,  G02F2001/3548

摘要： A second harmonic generation device has a waveguide layer for generating and outputting a second harmonic wave ray in response to the laser light from a laser, wherein the returning of reflected laser light from the waveguide layer to a laser is prevented. The returning of reflected laser light is prevented: by inclining a normal of at least one of a first and second end facets of the waveguide layer from an optical axis of the laser; by providing an absorbing layer on the waveguide layer for absorbing waveguided laser light and for waveguiding the generated second harmonic wave ray; or by providing a second waveguide layer for waveguiding and outputting the generated second harmonic wave ray and for radiating the waveguided laser light. The absorbing layer is provided by a blue filter adhered or deposited on the top surface of the waveguide layer. The second waveguide layer is provided by making the second waveguide layer more narrow that the waveguide layer. A second harmonic generation apparatus includes the laser. Methods of producing these devices and apparatus are disclosed.

摘要翻译： 二次谐波产生装置具有用于响应于来自激光器的激光而产生和输出二次谐波的波导层，其中防止从波导层向激光器返回反射的激光。 防止反射激光的返回：通过从激光的光轴倾斜波导层的第一和第二端面中的至少一个的法线; 通过在波导层上设置用于吸收波导激光并用于波导生成的二次谐波的吸收层; 或者通过提供用于波导和输出所生成的二次谐波的第二波导层并且用于辐射波导的激光。 吸收层由附着或沉积在波导层顶表面上的蓝色滤光片提供。 通过使第二波导层比波导层更窄，来提供第二波导层。 二次谐波发生装置包括激光器。 公开了制造这些装置和装置的方法。

公开(公告)号：US5301059A

公开(公告)日：1994-04-05

申请号：US20335

申请日：1993-02-19

申请人： Yasuo Kitaoka ,  Kazuhisa Yamamoto ,  Kiminori Mizuuchi ,  Makoto Kato ,  Fumihiro Sogawa

发明人： Yasuo Kitaoka ,  Kazuhisa Yamamoto ,  Kiminori Mizuuchi ,  Makoto Kato ,  Fumihiro Sogawa

IPC分类号： H01S3/0941 ,  H01S3/109 ,  H01S5/06 ,  H01S5/10 ,  H01S5/14 ,  G02F1/35

CPC分类号： H01S5/141 ,  H01S3/08009 ,  H01S3/109 ,  H01S5/005 ,  H01S5/0092 ,  H01S5/143

摘要： A short-wavelength light generating apparatus comprising a pumping semiconductor laser and an intra-cavity solid state laser, the intra-cavity solid state laser is excited in response to a laser light beam from the semiconductor laser to generate a short-wavelength light beam to an external. Also included in the apparatus is an external grating mirror having on its one surface a reflection type diffraction grating and placed between the semiconductor laser and the intra-cavity solid state laser. The external grating mirror reflects the laser light beam from the semiconductor laser to feedback a portion of the laser light beam to said semiconductor laser so that an oscillated wavelength of the semiconductor laser becomes within a wavelength acceptance of the intra-cavity solid state laser. Further, the external grating mirror supplies a portion of the laser light beam from the semiconductor laser to the intra-cavity solid state laser. This arrangement can output a stable harmonic wave with a high efficiency.

摘要翻译： 一种包括泵浦半导体激光器和腔内固体激光器的短波长发光装置，响应于来自半导体激光器的激光束激发腔内固态激光器，以产生短波长光束 外部的。 该装置中还包括外置光栅镜，其一面具有反射型衍射光栅，并设置在半导体激光器和腔内固态激光器之间。 外部光栅镜反射来自半导体激光器的激光束，以将激光束的一部分反射到所述半导体激光器，使得半导体激光器的振荡波长变得在腔内固态激光器的波长接受范围内。 此外，外部光栅镜将激光束的一部分从半导体激光器提供给腔内固态激光器。 这种布置可以以高效率输出稳定的谐波。

公开(公告)号：US5247583A

公开(公告)日：1993-09-21

申请号：US606629

申请日：1990-10-31

申请人： Makoto Kato ,  Shinichiro Miyaoka ,  Makoto Nohmi ,  Hiroyuki Okawara ,  Toyohisa Morita

发明人： Makoto Kato ,  Shinichiro Miyaoka ,  Makoto Nohmi ,  Hiroyuki Okawara ,  Toyohisa Morita

IPC分类号： G06T7/00 ,  G06T5/00

CPC分类号： G06T7/0083 ,  G06T2207/10024 ,  G06T2207/20021 ,  G06T2207/20104 ,  G06T2207/20136

摘要： An image processing area is divided into a plurality of small areas which are allowed to overlap one another. One or a plurality of pixels in a region to be segmented and in a region not to be segmented are specified. A representative point of the region to be segmented and a reference point of the region not to be segmented are determined from the color information of each of the pixels. A discriminating plane, a plane or a curved surface that intersects the line segment connecting the representative point and the reference point a right angles is used in processing. By the processing a particular region can be segmented out of the image. Further, a shape model is made by two-dimensionally projecting from a given direction the three-dimensional structure expressed by a line drawing consisting of nodes and curves connecting the nodes based on priori property relating the structure of the region to be segmented in the image. The shape model is then roughly correlated in position with the nodes on the contour of the image. An image processing provides stripe images having widths for each of the curves that is recomposed and used to find the contour and structure of the object in detail.

摘要翻译： 图像处理区域被分成允许彼此重叠的多个小区域。 指定要分割的区域中的一个或多个像素和不被分割的区域中。 根据每个像素的颜色信息确定要分割的区域的代表点和不被分割的区域的参考点。 在处理中使用与连接代表点和参考点成直角的线段相交的鉴别平面，平面或曲面。 通过处理，特定区域可以从图像中分割出来。 此外，通过基于与图像中要分割的区域的结构有关的先验属性从由给定方向二维地投影由由连接节点的节点和曲线组成的线条表示的三维结构来形成形状模型 。 形状模型然后在位置上与图像轮廓上的节点大致相关。 图像处理提供条带图像，其具有用于重新组合并用于详细查找对象的轮廓和结构的每个曲线的宽度。

公开(公告)号：US5173954A

公开(公告)日：1992-12-22

申请号：US813045

申请日：1991-12-23

申请人： Makoto Kato ,  Yoshihiro Takiguchi

发明人： Makoto Kato ,  Yoshihiro Takiguchi

IPC分类号： H01J31/50

CPC分类号： H01J31/501

摘要： A spatial light modulation device includes a spatial light modulation tube and converts a one-dimensional photoelectron image into a two-dimensional electron image, rotating the two-dimensional electron image, subjecting the rotated two-dimensional electron image and a previously stored electron image to addition or subtraction, and stores the electron image thus processed. An image reconstructing apparatus includes: projection means for detecting as projection data a projection of internal information of an object; the spatial light modulation device which produces and stores a corrected reconstructed image on the basis of a one-dimensional correction data image and a previously stored reconstructed image; optical reading means for reading out the reconstructed image form the spatial light modulation device; summing means for integrating parts of the readout reconstructed image to produce sum data; and comparison and correction means for subjecting the projection data and the sum data to comparison to form the one-dimensional correction data image.

摘要翻译： 空间光调制装置包括空间光调制管，并将一维光电子图像转换成二维电子图像，旋转二维电子图像，对旋转的二维电子图像和预先存储的电子图像进行 加法或减法，并存储如此处理的电子图像。 一种图像重建装置，包括：投影装置，用于检测作为投影数据的物体的内部信息的投影; 空间光调制装置，其基于一维校正数据图像和先前存储的重建图像产生并存储经校正的重建图像; 光学读取装置，用于从空间光调制装置读出重建图像; 求和装置，用于对读出的重构图像的部分进行积分以产生和数据; 以及用于对投影数据和和数据进行比较的比较和校正装置，以形成一维校正数据图像。

公开(公告)号：US4929823A

公开(公告)日：1990-05-29

申请号：US253076

申请日：1988-10-04

申请人： Makoto Kato ,  Tetsuo Saimi ,  Shunji Ohara

发明人： Makoto Kato ,  Tetsuo Saimi ,  Shunji Ohara

IPC分类号： G11B7/09 ,  G11B7/13 ,  G11B7/135

CPC分类号： G11B7/1381 ,  G11B7/0912 ,  G11B7/13 ,  G11B7/1353 ,  G11B7/0903

摘要： An optical pickup head apparatus comprises a hologram element disposed in the flux of light reflected back from an optical disc, and first and second photodetectors respectively having linear element boundaries extending in a predetermined direction and disposed so as to receive two-focal-point images on their coplanar detection surfaces, whereby the tolerable width of variation in the light source wavelength and the tolerable range of error in the assembling adjustment of the optics can be extended considerably to permit stable differential signal detection.

公开(公告)号：US4912313A

公开(公告)日：1990-03-27

申请号：US275069

申请日：1988-11-22

申请人： Makoto Kato ,  Koichi Homma ,  Fuminobu Komura ,  Toshihiro Furuya

发明人： Makoto Kato ,  Koichi Homma ,  Fuminobu Komura ,  Toshihiro Furuya

IPC分类号： G01B15/04 ,  H01J37/28

CPC分类号： H01J37/28 ,  G01B15/04

摘要： Disclosed is a method and apparatus for measurement of surface topography of a sample by using a scanning electron microscope, in which: secondary electrons released from the sample are detected by detectors which are four or an integral multiple of four in number and which are disposed above the sample to surround the sample; differential coefficients in two directions perpendicularly intersecting each other at the scanning point are obtained from the detected signals; the differential coefficients are successively summing-integrated along the two directions thereby obtaining surface topography of the sample; and at the same time the calculation expression for calculating the surface topography is corrected with the sample table inclined.

摘要翻译： 公开了一种使用扫描电子显微镜测量样品的表面形貌的方法和装置，其中：从样品释放的二次电子被检测器检测，该检测器是四个或四个的整数倍，并且被设置在上面 样品围绕样品; 从检测信号中获得在扫描点处彼此垂直相交的两个方向上的微分系数; 差分系数沿着两个方向连续相加积分，从而获得样品的表面形貌; 并且同时用样本表倾斜来校正用于计算表面形貌的计算表达式。