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公开(公告)号：US5657147A
公开(公告)日：1997-08-12
申请号：US505974
申请日：1995-07-24
申请人： Motonobu Yoshikawa , Yoshiharu Yamamoto , Kazutake Boku , Hironori Nakashima , Akinori Yusa , Ken Morishima
发明人： Motonobu Yoshikawa , Yoshiharu Yamamoto , Kazutake Boku , Hironori Nakashima , Akinori Yusa , Ken Morishima
CPC分类号： G02B26/126
摘要： The optical scanner of this invention includes a light source, an optical deflector for scanning a light flux from the light source, a first image formation optical system disposed between the light source and the optical deflector, and a second image formation optical system disposed between the optical deflector and a surface to be scanned. The second image formation optical system includes a curved mirror for reflecting a light flux from the optical deflector and a correction lens for converging the light flux from the curved mirror on the surface to be scanned. A refractive power in the sub-scanning direction at the center of the correction lens in the scanning direction is different from that at the periphery thereof.
摘要翻译： 本发明的光学扫描器包括光源，用于扫描来自光源的光束的光偏转器，设置在光源和光偏转器之间的第一成像光学系统，以及设置在光源 光学偏转器和待扫描的表面。 第二图像形成光学系统包括用于反射来自光学偏转器的光束的曲面镜和用于将来自曲面镜的光束会聚在待扫描表面上的校正透镜。 校正透镜在扫描方向中心的副扫描方向上的屈光力与周边不同。
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公开(公告)号：US5745277A
公开(公告)日：1998-04-28
申请号：US445175
申请日：1995-05-19
CPC分类号： G02B26/125
摘要： The scanner optics of this invention includes a condensing lens arrangement composed of a first aspherical lens having a positive refractive power and a convex meniscus surface on the side of the scanning surface and a second toric lens of which incident surface is saddle toroidal where a point on the incident surface has a greater radius of curvature in the sub-scanning direction as the point is farther from the optical axis in the scanning direction. A laser light flux emitted from a light source is deflected and scanned by a polygon mirror so as to form an image on a scanning surface via the condensing lens arrangement.
摘要翻译： 本发明的扫描仪光学元件包括聚光透镜装置，其由具有正折光力的第一非球面透镜和在扫描表面侧的凸弯月面表面组成，第二复曲面透镜的入射面为鞍形环形， 当该点离扫描方向的光轴越远时，入射面的副扫描方向的曲率半径越大。 从光源发射的激光光束被多面镜偏转和扫描，以便通过会聚透镜装置在扫描表面上形成图像。
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3.发明授权Code sheet representing multiple code information and method for producing the same 失效表示多个代码信息的代码表及其制造方法
公开(公告)号：US5814806A
公开(公告)日：1998-09-29
申请号：US774158
申请日：1996-12-26
申请人： Yasuhiro Tanaka , Hiroaki Okayama , Shusuke Ono , Kazutake Boku , Michihiro Yamagata , Katsu Yamada , Yoshiharu Yamamoto , Motonobu Yoshikawa
发明人： Yasuhiro Tanaka , Hiroaki Okayama , Shusuke Ono , Kazutake Boku , Michihiro Yamagata , Katsu Yamada , Yoshiharu Yamamoto , Motonobu Yoshikawa
CPC分类号： G06K1/121 , G06K19/06028
摘要： A plurality of types of ink having different wavelength characteristics are used for multiple printing of code information. When two or more types of ink are to be printed in an overlapping manner, in a region 8 in which one type of ink 4 and another type of ink 5 are printed in the overlapping manner, the ink 4 and the ink 5 are printed so as not to completely overlap each other by using a checkered pattern 9. As a result, the multiple printing can be performed without strict constraints on the wavelength characteristics of the ink.
摘要翻译： 使用具有不同波长特性的多种类型的墨水用于代码信息的多次打印。 当以重叠的方式印刷两种或更多种类型的油墨时，在重叠地印刷一种类型的油墨4和另一种类型的油墨5的区域8中，油墨4和油墨5被印刷成 因为不能通过使用方格图案9彼此完全重叠。结果，可以对油墨的波长特性没有严格的约束来执行多次打印。
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公开(公告)号：US5751464A
公开(公告)日：1998-05-12
申请号：US604058
申请日：1996-02-20
CPC分类号： G02B26/126
摘要： An optical scanner comprising a light source unit, an optical deflector to scan a light beam from the light source unit, a first image formation optical system disposed between the light source unit and the optical deflector, and a second image formation optical system disposed between the optical deflector and the surface to be scanned, wherein the second image formation optical system comprises a first curved mirror to reflect the light beam from the optical deflector and a second curved mirror to focus the light beam from the first curved mirror on the surface to be scanned, having surface shapes of any of the group consisting of the first curved mirror having a toric surface with a convex shape in the main scanning direction, which is the direction a light beam is scanned in, and with a concave shape in the sub scanning direction, which is the direction perpendicular to the main scanning direction, and the first curved mirror having a toric surface with a concave shape in the main scanning direction and a convex shape in the sub scanning direction and a second curved mirror having a toric surface or cylindrical surface without a refractive power or with a concave shape in the main scanning direction, and with a concave shape in the sub scanning direction to focus the light beam from the first curved mirror on the surface to be scanned.
摘要翻译： 一种光学扫描仪，包括光源单元，用于扫描来自光源单元的光束的光学偏转器，设置在光源单元和光学偏转器之间的第一图像形成光学系统，以及设置在光源单元之间的第二图像形成光学系统 光学偏转器和待扫描的表面，其中第二图像形成光学系统包括用于反射来自光学偏转器的光束的第一曲面镜和第二曲面镜，以将来自第一曲面镜的光束聚焦在表面上 被扫描，具有由主扫描方向上具有凸形的复曲面的第一曲面镜组成的组中的任一个的表面形状，即扫描光束的方向，并且在副扫描中具有凹形形状 方向是垂直于主扫描方向的方向，第一曲面镜在主体中具有凹形的复曲面 扫描方向和副扫描方向上的凸起形状;以及第二曲面镜，其具有在主扫描方向上没有屈光力或凹形的复曲面或圆柱形表面，并且在副扫描方向上具有凹形以便聚焦 来自待扫描表面上的第一个曲面镜的光束。
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公开(公告)号：US20060227834A1
公开(公告)日：2006-10-12
申请号：US11370144
申请日：2006-03-08
IPC分类号： H01S5/00
摘要： A reflection of unnecessary light, which should be prevented, can be suppressed, and occurrence of stray light can be reduced using a member having an antireflection structure, comprising a plate-like portion 2, and an aperture portion 3 formed in the plate-like portion 2, wherein the antireflection structure having an aspect ratio of 1 or more and comprising structural elements arranged in an array form at a period smaller than the shortest wavelength of light, the reflection of which should be prevented, is formed on an inner wall 4 of the aperture portion 3.
摘要翻译： 可以抑制应该防止的不必要的光的反射，并且可以使用具有防反射结构的部件，包括板状部分2和形成在板状部分2中的开口部分3来减少杂散光的出现 部分2，其中所述防反射结构具有1或更大的纵横比，并且包括以比可以防止其反射的光的最短波长小的阵列形式布置的结构元件形成在内壁4上 的开口部3。
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公开(公告)号：US5801869A
公开(公告)日：1998-09-01
申请号：US884116
申请日：1997-06-27
CPC分类号： G02B26/126
摘要： An optical scanner comprising a light source unit, an optical deflector to scan a light beam from the light source unit, a first image formation optical system disposed between the light source unit and the optical deflector, and a second image formation optical system disposed between the optical deflector and the surface to be scanned, wherein the second image formation optical system comprises a first curved mirror to reflect the light beam from the optical deflector and a second curved mirror to focus the light beam from the first curved mirror on the surface to be scanned, having surface shapes of any of the group consisting of the first curved mirror having a toric surface with a convex shape in the main scanning direction, which is the direction a light beam is scanned in, and with a concave shape in the sub scanning direction, which is the direction perpendicular to the main scanning direction, and the first curved mirror having a toric surface with a concave shape in the main scanning direction and a convex shape in the sub scanning direction and a second curved mirror having a toric surface or cylindrical surface without a refractive power or with a concave shape in the main scanning direction, and with a concave shape in the sub scanning direction to focus the light beam from the first curved mirror on the surface to be scanned.
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公开(公告)号：US07787184B2
公开(公告)日：2010-08-31
申请号：US11370144
申请日：2006-03-08
IPC分类号： G02B27/42
摘要： A reflection of unnecessary light, which should be prevented, can be suppressed, and occurrence of stray light can be reduced using a member having an antireflection structure, comprising a plate-like portion 2, and an aperture portion 3 formed in the plate-like portion 2, wherein the antireflection structure having an aspect ratio of 1 or more and comprising structural elements arranged in an array form at a period smaller than the shortest wavelength of light, the reflection of which should be prevented, is formed on an inner wall 4 of the aperture portion 3.
摘要翻译： 可以抑制应该防止的不必要的光的反射，并且可以使用具有防反射结构的部件，包括板状部分2和形成在板状部分2中的开口部分3来减少杂散光的出现 部分2，其中所述防反射结构具有1或更大的纵横比，并且包括以比可以防止其反射的光的最短波长小的阵列形式布置的结构元件形成在内壁4上 的开口部3。
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公开(公告)号：US6118420A
公开(公告)日：2000-09-12
申请号：US957147
申请日：1997-10-24
IPC分类号： G02B27/01 , F21V8/00 , G02F1/13 , G02F1/1334 , G02F1/13357 , G09G3/18
CPC分类号： G02B6/0023 , G02F1/133615 , G02F1/1334
摘要： A display device comprises a transparent type LCD including a pair of transparent plates facing each other, spaced with a predetermined gap and a polymer dispersed liquid crystal disposed between the transparent plates, which can be switched between a transparent state and a diffraction state pixel by pixel to display images or characters; a signal generator for giving display signals to the transparent type LCD; and a light system including a light source emitting light rays that enter the transparent plates from their edge faces, and a stop plate disposed between the edge faces of the transparent plates and the light source. This stop plate has an opening that extends along the longitudinal direction of the edge face of the transparent plate, and the width of the opening in the cross direction changes cyclically along the longitudinal direction.
摘要翻译： 显示装置包括透明型LCD，其包括彼此面对的一对透明板，间隔开预定间隙，并且聚合物分散液晶设置在透明板之间，可以在透明状态和衍射状态之间逐个像素地切换 显示图像或字符; 用于向透明型LCD显示信号的信号发生器; 以及包括发射从其边缘面进入透明板的光线的光源的光系统，以及设置在透明板和光源的边缘面之间的止挡板。 该止挡板具有沿着透明板的边缘面的长度方向延伸的开口，并且开口的宽度沿着长度方向周期性地变化。
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9.发明授权Method of designing a post-objective type optical scanner and product made by the method 失效通过该方法设计后物镜式光学扫描仪和产品的方法
公开(公告)号：US5598292A
公开(公告)日：1997-01-28
申请号：US22651
申请日：1993-03-01
CPC分类号： G02B26/12 , G02B27/0031 , G02B5/09
摘要： The present invention provides a method of designing a post-objective type optical scanner having an optical deflector composed of cylindrical or spherical reflecting surfaces for deflecting a converged light beam from a condensing lens by reflecting the converged light beam as it rotates, and a compensating lens located in an optical path between the optical deflector and a scanning surface for converging the deflected light beam from the optical deflector to a point on the scanning surface, of which power in the sub-scanning direction varies with a length from the center thereof in the scanning direction. The method is characterized in that a scanning speed(S) defined by a scanning width on a scanning surface per an angle unit of rotation of the optical deflector is selected by exploiting a characteristic that a maximum curvature of field in the scanning direction drops to a minimum value in a certain range predetermined by a length from a point of deflection of the optical deflector to the scanning surface(L) based on a correlation between the scanning speed and the maximum curvature of field in the scanning direction. In the method, offset of the f.multidot..theta. characteristic is maintained to be within .+-.0.5%, and the certain range is expressed as ##EQU1##
摘要翻译： 本发明提供了一种设计具有由圆柱形或球面反射表面组成的光学偏转器的后置物镜型光学扫描器的方法，用于通过在会聚光束旋转时反射会聚光束来使会聚光束从会聚透镜偏转;以及补偿透镜 位于光学偏转器与扫描表面之间的光路中，用于将来自光学偏转器的偏转光束会聚到扫描表面上的一个点，其中副扫描方向上的功率随着其中心的长度而变化 扫描方向。 该方法的特征在于，通过利用扫描方向的最大曲率下降到一个特性的特性来选择通过光偏转器的每个角度旋转单位在扫描表面上的扫描宽度所限定的扫描速度（S） 基于扫描速度和扫描方向上的最大曲率之间的相关性，在从光学偏转器的偏转点到扫描面（L）的长度预定的一定范围内的最小值。 在该方法中，将fxθ特性的偏移保持在±0.5％以内，并且将该范围表示为
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10.发明授权Illumination optical system, projection video system using the same, and integral-type video display 失效照明光学系统，使用相同的投影视频系统和整体式视频显示公开(公告)号：US07483086B2
公开(公告)日：2009-01-27
申请号：US11729019
申请日：2007-03-28
IPC分类号： H04N5/74
CPC分类号： G02B27/104 , G02B26/10 , G02B27/1053 , G02B27/145 , H04N9/3117 , H04N9/3129
摘要： An illumination optical system includes a light source for emitting a plurality of different colors of light, a plurality of rotating optical scanners, and a plurality of scanning lenses. Each of the optical scanners has a reflecting surface that is formed helically around a cylindrical body. The different colors of light enter the respective reflecting surfaces in the direction parallel to the rotation axis, are reflected therefrom, and pass through the scanning lenses, so that each color of light is magnified and then scans the region to be illuminated sequentially. This makes it possible to provide an illumination optical system that can improve scanning linearity, lower noise because of its reduced wind resistance, and achieve reduction in the cost and power consumption.
摘要翻译： 照明光学系统包括用于发射多种不同颜色的光的光源，多个旋转光学扫描器和多个扫描透镜。 每个光学扫描器具有围绕圆柱体螺旋形成的反射表面。 光的不同颜色在与旋转轴平行的方向上进入各反射面，从其反射并通过扫描透镜，使得每种颜色的光被放大，然后依次扫描该区域。 这使得可以提供一种照明光学系统，其能够提高扫描线性，并且由于其降低的风阻而降低噪声，并且实现成本和功耗的降低。
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