公开(公告)号：US5737113A

公开(公告)日：1998-04-07

申请号：US690870

申请日：1996-08-01

申请人： Junko Kuramochi ,  Michitaka Setani ,  Takehiko Nakai ,  Saburo Sugawara

发明人： Junko Kuramochi ,  Michitaka Setani ,  Takehiko Nakai ,  Saburo Sugawara

IPC分类号： G02B5/20 ,  G02B27/10 ,  G02F1/13357 ,  G02F1/03

CPC分类号： G02F1/133621 ,  G02B27/1086 ,  G02B27/144 ,  G02B5/203

摘要： An optical modulator includes a first diffraction grating for separating a light flux of a wide wavelength band into light fluxes of given wavelength bands. The optical modulator further includes an optical modulation element for modulating the separated light fluxes through corresponding picture elements, respectively, and outputting them. The optical modulator further includes a second diffraction grating for synthesizing the modulated light fluxes outputted from the optical modulation element, wherein the first diffraction grating, the optical modulation element and the second diffraction grating are integrally structured.

摘要翻译： 光调制器包括用于将宽波段的光束分离成给定波段的光束的第一衍射光栅。 光调制器还包括光调制元件，用于分别通过对应的像素调制分离的光束并输出它们。 光调制器还包括用于合成从光调制元件输出的调制光束的第二衍射光栅，其中第一衍射光栅，光调制元件和第二衍射光栅是整体结构的。

公开(公告)号：US5362957A

公开(公告)日：1994-11-08

申请号：US64875

申请日：1993-05-24

申请人： Takehiko Nakai ,  Michitaka Setani

发明人： Takehiko Nakai ,  Michitaka Setani

IPC分类号： G02B5/18 ,  G02B5/20 ,  G02B27/00 ,  G02B27/10 ,  G02B27/42 ,  H04N1/028 ,  H04N1/04 ,  H04N1/48 ,  H01J40/14

CPC分类号： G02B27/1013 ,  G02B27/1086 ,  G02B5/1861 ,  G02B5/1871 ,  G02B5/203 ,  H04N1/488

摘要： An image reading apparatus is provided with a light-receiving device, an imaging optical system and a blazed diffraction grating. In the light-receiving device, a plurality of line sensors are arranged on the same substrate. An image of an object to be imaged is formed on the light-receiving device by the imaging optical system. The blazed diffraction grating is arranged in an optical path between the imaging optical system and the light-receiving device. The blazed diffraction grating color-separates a light beam from the object to be imaged into a plurality of light components. The diffraction grating is so constructed to have grating lines with at least two different grating heights.

摘要翻译： 图像读取装置设置有光接收装置，成像光学系统和闪耀的衍射光栅。 在光接收装置中，多个线传感器布置在同一基板上。 成像光学系统在光接收装置上形成要被成像的物体的图像。 闪耀的衍射光栅布置在成像光学系统和光接收装置之间的光路中。 闪耀的衍射光栅将要被成像的物体的光束分色成多个光分量。 衍射光栅被构造成具有至少两个不同光栅高度的光栅线。

公开(公告)号：US06624943B2

公开(公告)日：2003-09-23

申请号：US09898029

申请日：2001-07-05

申请人： Takehiko Nakai ,  Michitaka Setani

发明人： Takehiko Nakai ,  Michitaka Setani

IPC分类号： G02B518

CPC分类号： G02B27/4211 ,  G02B5/1823 ,  G02B27/4216 ,  G02B27/4272

摘要： A diffractive optical element includes a plurality of laminated diffraction grating surfaces. Each of the diffraction grating surfaces is formed to have a sufficiently small grating thickness as compared with a grating pitch thereof.

摘要翻译： 衍射光学元件包括多个层叠的衍射光栅表面。 每个衍射光栅表面形成为具有与其光栅间距相比足够小的光栅厚度。

公开(公告)号：US06590708B2

公开(公告)日：2003-07-08

申请号：US08954874

申请日：1997-10-21

申请人： Takehiko Nakai ,  Michitaka Setani

发明人： Takehiko Nakai ,  Michitaka Setani

IPC分类号： F21V904

CPC分类号： G11B7/1367 ,  G02B5/1814 ,  G02B27/4211 ,  G02B27/4272 ,  G11B7/1372

摘要： In a lens system having one or a plurality of diffracting surfaces and one or a plurality of refracting surfaces, a power of each surface and a distance between the surfaces are set such that an optical characteristic of the lens system, such as a focal length (focal point) and/or a spherical aberration, remains substantially unvarying relative to temperature variations within a predetermined range and that an achromatic effect is substantially attained for the focal length (focal point) and/or the spherical aberration within a predetermined region of wavelength.

摘要翻译： 在具有一个或多个衍射面和一个或多个折射表面的透镜系统中，每个表面的功率和表面之间的距离被设置为使得透镜系统的光学特性，例如焦距（ 焦点）和/或球面像差相对于预定范围内的温度变化基本上不变，并且基本上对于预定波长范围内的焦距（焦点）和/或球面像差实现消色差效应。

公开(公告)号：US5113067A

公开(公告)日：1992-05-12

申请号：US479606

申请日：1990-02-13

申请人： Takehiko Nakai ,  Michitaka Setani

发明人： Takehiko Nakai ,  Michitaka Setani

IPC分类号： H04N1/48

CPC分类号： H04N1/488

摘要： An image reading apparatus comprises a multiline sensor on which a plurality of linear sensor arrays are arranged on and a single substrate, a focusing optical system for focusing an object image on the multiline sensor. A blazed diffraction grating is disposed in an optical path between the focusing optical system and the multiline sensor, for color-separating light from the object into a plurality of light components, and for guiding the color-separated light components to the corresponding sensor arrays. The grating thickness of the blazed diffraction grating varies in correspondence with an angle of light incident on the blazed diffraction grating.

公开(公告)号：US5187358A

公开(公告)日：1993-02-16

申请号：US884239

申请日：1992-05-11

申请人： Michitaka Setani

发明人： Michitaka Setani

IPC分类号： H04N1/48

CPC分类号： H04N1/488

摘要： An image reading device includes a plural-line sensor containing plural line sensor arrays formed on a substrate, a telecentric imaging optical system for forming the image of an object on the sensor, and a blazed diffraction grating positioned in the optical path between the imaging optical system and the sensor and adapted to separate the light from the object into plural color components and to guide the color-separated light to respectively corresponding sensor arrays.

摘要翻译： 图像读取装置包括：多行传感器，其包含形成在基板上的多个线传感器阵列，用于在传感器上形成物体的图像的远心成像光学系统，以及位于成像光学系统之间的光路中的闪耀衍射光栅 系统和传感器，并且适于将来自物体的光分离成多个颜色分量，并将分色光引导到分别对应的传感器阵列。

公开(公告)号：US5173599A

公开(公告)日：1992-12-22

申请号：US865647

申请日：1992-04-10

申请人： Michitaka Setani

发明人： Michitaka Setani

IPC分类号： H04N1/48

CPC分类号： H04N1/488

摘要： A color image reading apparatus comprises a plurality of line sensors, an optical system for forming an image of a subject, a blazed diffraction grating inserted in light path between the optical system and the sensors, and a slit inserted in light path between the subject and the optical system. The blazed diffraction grating separates light beams from the subject into plurality color lights and directs them to their corresponding sensor arrays. The slit has an aperture, the size of which in the array direction of the sensors is longer than that in the direction perpendicular to the array direction of the sensors. By construction of the apparatus according to the present invention, noise light can be prevented so as to read high accuracy digital color image.

摘要翻译： 彩色图像读取装置包括多个线传感器，用于形成被检体的图像的光学系统，插入在光学系统和传感器之间的光路中的闪耀的衍射光栅，以及插入到被检体和被检体的光路之间的狭缝 光学系统。 闪耀的衍射光栅将来自被摄体的光束分离成多个颜色的光并将它们引导到它们相应的传感器阵列。 狭缝具有孔，其尺寸在传感器的排列方向上比在垂直于传感器阵列方向的方向上长。 通过构造根据本发明的装置，可以防止噪声光以便读取高精度的数字彩色图像。

公开(公告)号：US5329384A

公开(公告)日：1994-07-12

申请号：US43582

申请日：1993-04-05

申请人： Michitaka Setani ,  Naosato Taniguchi

发明人： Michitaka Setani ,  Naosato Taniguchi

IPC分类号： G02B5/32 ,  H04N1/04 ,  H04N1/48 ,  H04N9/097 ,  H04N9/04

CPC分类号： G02B5/32 ,  H04N1/488 ,  H04N9/097

摘要： A color image reading apparatus includes a plurality of line sensors formed by arranging a plurality of one-dimensional sensor arrays on a single substrate, a focusing optical system for focusing an object on the sensors, and a volume hologram, arranged in the optical path between the focusing optical system and the sensors, for color-separating light from the object into a plurality of color components and guiding the plurality of color components to the corresponding one-dimensional sensor arrays.

摘要翻译： 彩色图像读取装置包括通过在单个基板上布置多个一维传感器阵列而形成的多个线传感器，用于将物体聚焦在传感器上的聚焦光学系统和布置在光路中的体积全息图 聚焦光学系统和传感器，用于将来自物体的光分离成多个颜色分量，并将多个颜色分量引导到相应的一维传感器阵列。

公开(公告)号：US5150250A

公开(公告)日：1992-09-22

申请号：US766268

申请日：1991-09-27

申请人： Michitaka Setani

发明人： Michitaka Setani

IPC分类号： G02B26/08 ,  H04N1/036

CPC分类号： G02B26/0816 ,  H04N1/036

摘要： A light scanning optical system of an image output scanner in which a light beam incident from a light source through an irradiating optical system is applied to an electro-mechanical light modulator comprising a number of elements capable of deflecting the incident light beam in at least two directions in conformity with an input signal and arranged in the main scan direction, and image information is prepared by the change-over of the direction of deflection of each of the elements, whereafter only a signal light is projected onto a photosensitive member by a projection optical system is characterized in that the shape of at least one of the irradiating and projection optical system is flat in the main scan direction and the electro-mechanical light modulator is irradiated in the form of a slit.

摘要翻译： 一种图像输出扫描器的光扫描光学系统，其中从光源通过照射光学系统入射的光束被施加到机电光调制器，其包括能够使至少两个入射光束偏转的多个元件 方向与输入信号一致并且沿主扫描方向布置，并且通过每个元件的偏转方向的转换来准备图像信息，之后只有信号光通过突起投影到感光部件上 光学系统的特征在于，照射和投影光学系统中的至少一个的形状在主扫描方向上是平坦的，并且机电光调制器以狭缝的形式照射。

公开(公告)号：US4963464A

公开(公告)日：1990-10-16

申请号：US212653

申请日：1988-06-28

申请人： Michitaka Setani

发明人： Michitaka Setani

IPC分类号： G11B7/135 ,  G11B7/00 ,  G11B7/004 ,  G11B7/005 ,  G11B7/013 ,  G11B7/14 ,  G11B7/24

CPC分类号： G11B7/24085 ,  G11B7/0051 ,  G11B7/14 ,  Y10S430/146

摘要： An optical information recording medium includes a plurality of kinds of pits independently representing information and having different depths, wherein the plurality of kinds of pits are formed as portions recessed from the same plane. A method of reproducing information is disclosed, which includes irradiating this medium with a plurality of light beams having different wavelengths corresponding to the depths of the plurality of kinds of pits; and independently detecting the beams modulated by the pits. An optical information reproducing apparatus is also disclosed. The reproducing apparatus includes an optical information recording medium having a plurality of kinds of pits formed in the same plane, each pit independently representing information and having an independently determined depth; an irridating device for irradiating the medium with a plurality of light beams having different wavelengths corresponding to the depths of the plurality of kinds of pits; and a plurality of photodetectors for indepedently detecting a plurality of light beams modulated by the pits.

摘要翻译： 光信息记录介质包括独立地表示信息并具有不同深度的多种凹坑，其中多种凹坑形成为从同一平面凹陷的部分。 公开了一种再现信息的方法，其包括用与多种凹坑的深度相对应的具有不同波长的多个光束照射该介质; 并独立地检测由凹坑调制的光束。 还公开了一种光学信息再现装置。 再现装置包括具有形成在同一平面上的多种凹坑的光信息记录介质，每个凹坑独立地表示信息并具有独立确定的深度; 用于用与多种凹坑的深度对应的具有不同波长的多个光束照射介质的冲洗装置; 以及用于独立地检测由凹坑调制的多个光束的多个光电检测器。