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公开(公告)号：US20050024477A1
公开(公告)日：2005-02-03
申请号：US10898233
申请日：2004-07-26
申请人： Masaru Noguchi , Hiromi Ishikawa
发明人： Masaru Noguchi , Hiromi Ishikawa
CPC分类号： G03F7/70791 , B41J2/465
摘要： In an exposure head of the invention, plural first micro-focusing elements are arranged in a first microlens array so as to correspond to plural micromirrors in a DMD. An aperture array that includes plural apertures arranged so as to respectively correspond to the plural first micro-focusing elements is disposed. The apertures allow only main portions of Fraunhofer diffraction images to be transmitted therethrough. The main portions of the Fraunhofer diffraction images transmitted through the apertures are imaged on an exposure plane by second micro-focusing elements of a second microlens array. According to the exposure head of the invention, cross-talk light and scattered light can be effectively reduced, and beam diameters of beam spots projected on the exposure plane through the apertures can be adjusted to a required size.
摘要翻译： 在本发明的曝光头中，多个第一微焦点元件被布置在第一微透镜阵列中，以对应于DMD中的多个微镜。 布置有包括分别对应于多个第一微聚焦元件的多个孔的孔阵列。 这些孔仅允许弗劳恩霍夫衍射图像的主要部分通过其传播。 通过孔径传播的弗劳恩霍夫衍射图像的主要部分通过第二微透镜阵列的第二微聚焦元件在曝光平面上成像。 根据本发明的曝光头，可以有效地减少串扰光和散射光，并且通过孔径投影在曝光平面上的光束点的光束直径可以被调节到所需的尺寸。
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公开(公告)号：US4908511A
公开(公告)日：1990-03-13
申请号：US229876
申请日：1988-08-08
申请人： Hiromi Ishikawa , Masaru Noguchi
发明人： Hiromi Ishikawa , Masaru Noguchi
CPC分类号： H04N1/1135 , H04N1/053 , H04N1/12 , H04N2201/0471 , H04N2201/04768
摘要： A light deflector such as a polygon mirror deflects a synchronizing light beam and a scanning light beam which are applied thereto at different angles. A first focusing optical system is disposed between the light deflector and an object to be scanned by the scanning light beam for focusing the scanning light beam on the object. A synchronizing signal generator including a reference grating plate generates a synchronizing signal from the synchronizing light beam applied to the reference grating plate. A second focusing optical system is disposed between the first focusing optical system and the reference grating plate for focusing the synchronizing light beam applied through the first focusing optical system on the reference grating plate. Image information is read from the object or read on the object based on the synchronizing signal.
摘要翻译： 诸如多面镜的光偏转器偏转以不同角度施加到其上的同步光束和扫描光束。 第一聚焦光学系统通过扫描光束设置在光偏转器和待扫描物体之间，用于将扫描光束聚焦在物体上。 包括参考光栅板的同步信号发生器从施加到参考光栅板的同步光束产生同步信号。 第二聚焦光学系统设置在第一聚焦光学系统和参考光栅板之间，用于将通过第一聚焦光学系统施加的同步光束聚焦在参考光栅板上。 基于同步信号，从对象读取图像信息或者在物体上读取图像信息。
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公开(公告)号：US07187399B2
公开(公告)日：2007-03-06
申请号：US10898233
申请日：2004-07-26
申请人： Masaru Noguchi , Hiromi Ishikawa
发明人： Masaru Noguchi , Hiromi Ishikawa
CPC分类号： G03F7/70791 , B41J2/465
摘要： In an exposure head of the invention, plural first micro-focusing elements are arranged in a first microlens array so as to correspond to plural micromirrors in a DMD. An aperture array that includes plural apertures arranged so as to respectively correspond to the plural first micro-focusing elements is disposed. The apertures allow only main portions of Fraunhofer diffraction images to be transmitted therethrough. The main portions of the Fraunhofer diffraction images transmitted through the apertures are imaged on an exposure plane by second micro-focusing elements of a second microlens array. According to the exposure head of the invention, cross-talk light and scattered light can be effectively reduced, and beam diameters of beam spots projected on the exposure plane through the apertures can be adjusted to a required size.
摘要翻译： 在本发明的曝光头中，多个第一微焦点元件被布置在第一微透镜阵列中，以对应于DMD中的多个微镜。 布置有包括分别对应于多个第一微聚焦元件的多个孔的孔阵列。 这些孔仅允许弗劳恩霍夫衍射图像的主要部分通过其传播。 通过孔径传播的弗劳恩霍夫衍射图像的主要部分通过第二微透镜阵列的第二微聚焦元件在曝光平面上成像。 根据本发明的曝光头，可以有效地减少串扰光和散射光，并且通过孔径投影在曝光平面上的光束点的光束直径可以被调节到所需的尺寸。
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公开(公告)号：US4969699A
公开(公告)日：1990-11-13
申请号：US399339
申请日：1989-08-28
申请人： Masaru Noguchi , Hiromi Ishikawa
发明人： Masaru Noguchi , Hiromi Ishikawa
CPC分类号： H04N1/0283 , B23K26/08 , B23K26/082 , G02B26/10 , H04N1/024
摘要： A light beam scanning apparatus comprises a plurality of semiconductor lasers, collimator lenses for converting a plurality of laser beams emitted by the semiconductor lasers into parallel rays, a common converging optical system for converging the laser beams to a common spot, and a common light deflector for deflecting and scanning the laser beams. Or, a light beam scanning apparatus comprises a plurality of semiconductor lasers positioned so that laser beams emitted by the semiconductor lasers focus on a common spot, a plurality of converging optical systems respectively positioned so as to correspond to the semiconductor lasers for converging the laser beams to the spot, and a common light deflector for deflecting and scanning the laser beams.
摘要翻译： 光束扫描装置包括多个半导体激光器，用于将由半导体激光器发射的多个激光束转换为平行光的准直透镜，用于将激光束会聚到公共光点的公共会聚光学系统，以及公共光偏转器 用于偏转和扫描激光束。 或者，光束扫描装置包括多个半导体激光器，其被定位成使得由半导体激光器发射的激光束聚焦在公共点上，多个会聚光学系统分别定位成对应于半导体激光器，用于会聚激光束 以及用于偏转和扫描激光束的公共光偏转器。
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公开(公告)号：US4632499A
公开(公告)日：1986-12-30
申请号：US560004
申请日：1983-12-09
申请人： Masaru Noguchi , Hiromi Ishikawa
发明人： Masaru Noguchi , Hiromi Ishikawa
CPC分类号： G02B26/106
摘要： A light beam scanning apparatus comprises a rotatable plate provided with at least one plane diffraction grating, and a light beam source for emitting a light beam incident on the plane diffraction grating so that the plane of incidence is a plane in which the rotation axis of the rotatable plate lies. The light beam diffracted by the plane diffraction grating is reflected at least by use of a plane reflection surface normal to the plane of incidence, and guided again to the plane diffraction grating. The light beam diffracted again by the plane diffraction grating is focused by a focusing lens onto a scanning surface, whereby a bow-free scan line is formed on the scanning surface as the rotatable plate is rotated.
摘要翻译： 光束扫描装置包括设置有至少一个平面衍射光栅的可旋转板和用于发射入射在平面衍射光栅上的光束的光束源，使得入射平面是其中旋转轴线 旋转板位于。 由平面衍射光栅衍射的光束至少通过使用垂直于入射平面的平面反射表面反射，并再次被引导到平面衍射光栅。 由平面衍射光栅再次衍射的光束被聚焦透镜聚焦在扫描面上，由此随着旋转板旋转而在扫描面上形成弓形扫描线。
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公开(公告)号：US5673137A
公开(公告)日：1997-09-30
申请号：US600174
申请日：1996-02-12
CPC分类号： G02B26/126
摘要： In a condenser optical system for a light scanning system, a single lens focuses a light beam deflected by a reflecting surface of a deflector onto a surface to be scanned and causes the deflected light to scan the surface in a main scanning direction at a constant speed. A cylindrical mirror which has a refracting power only in a sub-scanning direction normal to the main scanning direction compensates for surface tilt of the reflecting surface. At least one surface of the single lens is toric to compensate for the surface tilt associated with the cylindrical mirror and the toric surface is aspheric in a main-scanning cross-section.
摘要翻译： 在用于光扫描系统的聚光光学系统中，单个透镜将由偏转器的反射表面偏转的光束聚焦到待扫描的表面上，并使偏转的光以恒定速度在主扫描方向上扫描该表面 。 仅在垂直于主扫描方向的副扫描方向上具有折射力的圆柱形反射镜补偿反射表面的表面倾斜。 单透镜的至少一个表面是复曲面以补偿与圆柱形镜相关联的表面倾斜，并且复曲面在主扫描横截面中是非球面的。
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公开(公告)号：US4571020A
公开(公告)日：1986-02-18
申请号：US453865
申请日：1982-12-28
申请人： Hiromi Ishikawa , Masaru Noguchi
发明人： Hiromi Ishikawa , Masaru Noguchi
CPC分类号： G02B26/106 , Y10S359/90
摘要： A method of recording a holographic plate and deflecting light in synchronism in which a scanning beam interference pattern and a synchronous signal interference pattern are both recorded on a holographic plate. When the plate is subsequently rotated, a spherical wave passing through the scanning beam portion of the plate describes an arc in space BB'. Likewise, a spherical wave passing through the synchronous signal portion of the plate describes an arc in space DD'. In this manner, a recording medium can be synchronously scanned when it is disposed along arc BB', and a clock signal can be produced when a grid pattern is disposed within arc DD'. Accordingly, picture images can be recorded or read out at high accuracy even if the holograms are spaced unevenly.
摘要翻译： 记录全息板并同步地偏转光的方法，其中扫描光束干涉图案和同步信号干涉图案都记录在全息板上。 当板随后旋转时，穿过板的扫描光束部分的球面波在空间BB'中描述一个弧。 同样地，穿过板的同步信号部分的球面波在空间DD'中描绘出一个弧。 以这种方式，当沿着弧形BB'布置时可以同步扫描记录介质，并且当格栅图案设置在弧线DD'内时可以产生时钟信号。 因此，即使全息图不均匀地间隔，也可以高精度地记录或读出图像。
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公开(公告)号：US5790509A
公开(公告)日：1998-08-04
申请号：US687325
申请日：1996-08-06
申请人： Masaru Noguchi
发明人： Masaru Noguchi
CPC分类号： G11B7/08576 , G11B7/0903
摘要： A driving mechanism for an optical pickup for optical disks which uses the 3-beam system for tracking error detection. The driving mechanism has a swing supporting point provided on a base, and a swing arm which pivots about the swing supporting point and fixedly holds an optical pickup. The swing arm has a flat portion provided near an end portion thereof. The flat portion contains the center axis of the swing arm. A correcting point is provide on the center axis of the swing arm. The driving mechanism further has a correcting mechanism for causing the correcting point to move along a circular arc having a radius smaller than the distance from the correcting point to the swing supporting point, and a swing arm driving mechanism for swingingly driving the swing arm. The driving mechanism is less costly and capable of driving the optical pickup at high speed and with high accuracy. In addition, degradation of the output signal can be prevented.
摘要翻译： PCT No.PCT / JP95 / 02322 Sec。 371日期：1996年8月6日 102（e）日期1996年8月6日PCT 1995年11月14日PCT PCT。 出版物WO96 / 18190 日期1996年6月13日为使用3光束系统进行跟踪误差检测的用于光盘的光学拾取器的驱动机构。 驱动机构具有设置在基座上的摆动支撑点和围绕摆动支撑点枢转并固定地保持光学拾取器的摆臂。 摆臂具有靠近其端部设置的平坦部分。 平坦部包含摆臂的中心轴。 在摆臂的中心轴上提供校正点。 所述驱动机构还具有校正机构，其使所述校正点沿着半径小于从所述校正点到所述摆动支撑点的距离的圆弧移动;以及摆动臂驱动机构，用于使所述摆臂摆动地驱动。 驱动机构成本较低，并且能够以高速和高精度驱动光学拾取器。 此外，可以防止输出信号的劣化。
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公开(公告)号：US4800276A
公开(公告)日：1989-01-24
申请号：US766202
申请日：1985-08-16
申请人： Masaru Noguchi
发明人： Masaru Noguchi
CPC分类号： G01T1/2014 , H04N1/0281
摘要： A radiation image read-out apparatus comprises devices for two-dimensionally scanning a stimulable phosphor sheet carrying a radiation image stored thereon by stimulating rays, and a light guide member having a light input face positioned above the stimulable phosphor sheet. A light shielding member having an aperture for passing light emitted by the stimulable phosphor sheet upon stimulation thereof is positioned between the stimulable phosphor sheet and the light guide member, and an optical system for converging the emitted light by a cylindrical lens and making it impinge upon the light guide member via the aperture is positioned between the stimulable phosphor sheet and the light shielding member. Or, a volume hologram for making the emitted light impinge upon the light guide member is positioned between the stimulable phosphor sheet and the light guide member.
摘要翻译： 放射线图像读取装置包括用于通过刺激光线二维地扫描携带其上存储的放射线图像的可刺激的磷光体片的装置，以及具有位于可刺激的荧光粉片上方的光输入面的导光部件。 具有用于使可刺激的荧光体片在其刺激时发出的光的孔的光遮蔽构件位于可刺激的荧光体片和导光构件之间，以及用于通过柱面透镜会聚发射的光并使其撞击的光学系统 经由孔的导光构件位于可刺激的荧光体片和遮光构件之间。 或者，用于使发射的光照射在导光构件上的体积全息图位于可刺激的荧光体片和导光构件之间。
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公开(公告)号：US3993398A
公开(公告)日：1976-11-23
申请号：US599038
申请日：1975-07-25
申请人： Masaru Noguchi , Shingo Ooue
发明人： Masaru Noguchi , Shingo Ooue
CPC分类号： G03H1/24
摘要： A white light source is employed for illuminating a color image hologram have no effect of diffusion. The primary or first order diffraction light is directed to and focused on a spectrum selecting spatial filter for selecting the spectra which contribute to form a multi-color image reconstructed by the hologram. The spatial filter is provided with a central slit of the width substantially equally to the band width of the spatial frequency peculiar to the object recorded and reconstructed. The spatial filter is further provided with a red filter and a blue filter on the opposite sides of the slit adjacent thereto. By providing the red and blue filters adjacent to the slit of the spatial filter, the brightness of the image reconstructed by the color halogram reconstructing system is markedly enhanced.
摘要翻译： 白色光源用于照亮彩色图像全息图没有扩散的作用。 初级或一阶衍射光被引导并聚焦在光谱选择空间滤波器上，用于选择有助于形成由全息图重建的多色图像的光谱。 空间滤波器设置有宽度基本上等于记录和重建的对象特有的空间频率的带宽的中心狭缝。 空间滤光器还在与其相邻的狭缝的相对侧上设置有红色滤光器和蓝色滤光器。 通过在空间滤波器的狭缝附近设置红色和蓝色滤色器，显着地增强了由彩色晕轮重建系统重建的图像的亮度。
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