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1.发明授权Apparatus for printing color image by combination of optical beam scanning units and photosensitive drums 失效用于通过光束扫描单元和感光鼓的组合打印彩色图像的装置
公开(公告)号：US5982402A
公开(公告)日：1999-11-09
申请号：US863686
申请日：1997-05-27
CPC分类号： B41J2/465 , B41J2/471 , H04N1/047 , H04N1/504 , H04N1/1135 , H04N1/12 , H04N2201/04729 , H04N2201/04731 , H04N2201/04789 , H04N2201/04791
摘要： A tandem type color printer, having optical beam scanning units and corresponding photosensitive drums, which detects a positional shift of a scanning locus occurring on a corresponding one of the plurality of photosensitive drums, and automatically corrects the detected positional shift of the scanning locus. A detecting window, in which a beam transmission time varies with a change in the beam scanning position, is provided at each of the start end side and the terminal end side of each of a plurality of beam scanning loci in a mask plate. The mask plate is arranged between the optical beam scanning units and the photosensitive drums, to provide output of a detection signal corresponding to the incident time of the transmission beam resulting from beam scanning by a light source, and thus determines and corrects the direction and the amount of positional shift of the scanning locus.
摘要翻译： 一种具有光束扫描单元和相应的感光鼓的串联型彩色打印机，其检测在多个感光鼓中的相应一个感光鼓上发生的扫描轨迹的位置偏移，并且自动校正检测到的扫描轨迹的位置偏移。 在掩模板中的多个光束扫描轨迹中的每一个的起始端侧和终端侧的每个处设置有检测窗，其中光束透射时间随着光束扫描位置的变化而变化。 掩模板布置在光束扫描单元和感光鼓之间，以提供对应于由光源的光束扫描产生的发射光束的入射时间的检测信号的输出，从而确定和校正方向和 扫描轨迹的位置偏移量。
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公开(公告)号：US4957336A
公开(公告)日：1990-09-18
申请号：US269412
申请日：1988-11-10
IPC分类号： G02B26/10
CPC分类号： G02B26/106 , Y10S359/90
摘要： A high precision laser beam scanner is provided which is able to shape a beam generated by a laser, suppress the influence of jitter of a scanning beam due to mode hopping of a semiconductor laser, and reduce aberration of the scanning beam. A beam source generates a semiconductor laser beam, which is diffracted by a rotary hologram, forming a scanning beam on a surface to be scanned. An aberration correcting stationary hologram is disposed between the beam source and the rotary hologram. The stationary hologram is constructed with an object wave and a reference wave, which interfere on a stationary hologram substrate subject so that an aberration of the scanning beam on the surface to be scanned shall be corrected. The object wave is a spherical wave which has an aberration, a wave length shorter than that of the semiconductor laser beam, and an incident angle which is not vertical but is inclined with respect to the stationary hologram substrate. A method for fabricating the laser beam scanner is also provided.
摘要翻译： 提供了能够对由激光产生的光束进行成形的高精度激光束扫描器，抑制由于半导体激光器的跳跃而导致的扫描光束的抖动的影响，并且减小扫描光束的像差。 光束源产生通过旋转全息图衍射的半导体激光束，在要扫描的表面上形成扫描光束。 像差校正固定全息图设置在光束源和旋转全息图之间。 固定全息图由对象波和参考波构成，其干涉固定的全息图基板对象，使得要扫描的表面上的扫描光束的像差被校正。 对象波是具有像差，波长短于半导体激光束的像差的球面波，并且不是垂直但相对于静止全息图基板倾斜的入射角。 还提供了一种用于制造激光束扫描器的方法。
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公开(公告)号：US4824191A
公开(公告)日：1989-04-25
申请号：US173050
申请日：1988-03-28
CPC分类号： G11B7/1353 , G02B5/32 , G11B7/08547 , G11B7/1372
摘要： An optical pickup for reading out information from an information recording media, such as an optical diskette, comprises a light source for irradiating light beam onto an optical diskette, an optical sensor for detecting the light beam reflected at the optical diskette, and an optical system including a wave plate and two hologram lenses. The first hologram lens diffracts the light beam from the light source, and the second hologram lens transmits the same light beam. On the other hand, the second hologram lens diffracts the reflected light beam from the optical diskette toward the optical sensor, and the first hologram lens transmits the same reflected light beam.
摘要翻译： 用于从诸如光盘的信息记录介质读出信息的光学拾取器包括用于将光束照射到光盘上的光源，用于检测在光盘上反射的光束的光学传感器，以及光学系统 包括波片和两个全息图透镜。 第一全息透镜衍射来自光源的光束，第二全息透镜透射相同的光束。 另一方面，第二全息图透镜将来自光盘的反射光衍射到光学传感器，并且第一全息透镜透射相同的反射光束。
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公开(公告)号：US4948213A
公开(公告)日：1990-08-14
申请号：US329327
申请日：1989-03-27
IPC分类号： G02B26/10
CPC分类号： G02B26/106
摘要： A light beam scanning apparatus includes a rotatable holographic disk having a hologram which is constructed by an interference of a reference wave and an objective wave, which is a coma wave, the coma wave having a focal length which decreases toward the outer periphery from the inner periphery of the holographic disk in a radial direction. The focal length has a different direction perpendicular to the radial direction, so that when the hologram of the holographic disk which rotates is reconstructed by a reconstruction wave, the scanning is effected by the beams diffracted by the hologram.
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公开(公告)号：US4938550A
公开(公告)日：1990-07-03
申请号：US151616
申请日：1988-02-02
CPC分类号： G02B5/32 , G02B26/0808
摘要： A holographic deflection device having a tunable laser, and at least one hologram for deflecting light incident thereupon from the tunable laser, so that the deflection of the light can be controlled by a change of the wavelength of the beam from the tunable laser.
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公开(公告)号：US5900955A
公开(公告)日：1999-05-04
申请号：US861639
申请日：1997-05-22
CPC分类号： G02B5/1876 , G02B26/12
摘要： An optical scanning system includes a laser source, a deflector deflecting a laser beam emitted from the laser source, and at least two hologram elements located between the deflector and an image forming member.
摘要翻译： 光学扫描系统包括激光源，偏转从激光源发射的激光束的偏转器和位于偏转器和图像形成部件之间的至少两个全息元件。
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公开(公告)号：US5497170A
公开(公告)日：1996-03-05
申请号：US353304
申请日：1994-12-05
申请人： Masayuki Kato , Hirokazu Aritake , Tsuyoshi Matsumoto , Junji Tomita , Fumio Yamagishi , Masato Nakashima , Masao Suzuki , Toshiaki Fujiwara , Masaya Sugita , Koichi Takoa
发明人： Masayuki Kato , Hirokazu Aritake , Tsuyoshi Matsumoto , Junji Tomita , Fumio Yamagishi , Masato Nakashima , Masao Suzuki , Toshiaki Fujiwara , Masaya Sugita , Koichi Takoa
CPC分类号： G02B27/0103 , G02B5/32 , G02B2027/0107 , G02B2027/0109 , G02B2027/0118 , G02B2027/0145 , G02B2027/0194 , G02B5/28
摘要： A headup display apparatus consists of a projection optical system unit installed in the dashboard of a car and a reflection member on the windshield. The projection optical system unit contains an indicator and an off-axis reflective hologram which reflects display light of the indicator toward the windshield, which in turn reflects it toward the viewing point of a driver. As a result, the display is seen superimposed on the exterior view. When external light as from the sun enters the projection optical system unit traveling in a direction reverse to the path of the display light, the off-axis reflective hologram reflects the incident external light toward a direction different from that of the outgoing display light to minimize an abnormal illumination of the indicator surface which would otherwise render the display unrecognizable. Behind the hologram is installed a heat dissipating member that receives infrared rays that have transmitted the hologram in order to dissipate heat.
摘要翻译： 头枕显示装置由安装在轿厢的仪表板上的投影光学系统单元和挡风玻璃上的反射构件组成。 投影光学系统单元包含指示器和离轴反射全息图，该反射全息图将指示器的显示光反射到挡风玻璃，其反过来朝向驾驶员的观察点反射。 结果，显示器被叠加在外部视图上。 当来自太阳的外部光入射到与显示光的路径相反的方向行进的投影光学系统单元时，离轴反射全息图朝向与出射显示光的方向不同的方向反射入射的外部光，以最小化 指示器表面的异常照明，否则会使显示器无法识别。 在全息图之后安装有散热构件，其接收已经透射全息图以散发热量的红外线。
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8.发明授权Method of manufacturing light beam scanning apparatus and fixed hologram plate and rotatable hologram and light distributing apparatus 失效制造光束扫描装置和固定全息板以及可旋转全息图和光分布装置的方法
公开(公告)号：US5861964A
公开(公告)日：1999-01-19
申请号：US453669
申请日：1995-05-30
申请人： Shinya Hasegawa , Shigeo Kayashima , Satoshi Maeda , Shigetake Iwata , Fumio Yamagishi , Masato Nakashima , Hirokazu Aritake , Mamoru Hokari
发明人： Shinya Hasegawa , Shigeo Kayashima , Satoshi Maeda , Shigetake Iwata , Fumio Yamagishi , Masato Nakashima , Hirokazu Aritake , Mamoru Hokari
CPC分类号： G02B5/32 , G02B26/106 , G03H1/0005
摘要： A high-resolution light-beam scanning apparatus utilizing only mass-producible holograms instead of utilizing auxiliary optical systems, and capable of compensating for disadvantages. The light-beam scanning apparatus including diffraction gratings for minimizing either: a sum total of values obtained by weighting a square of an optical path length difference between an optical path of a light flux measured along a principal axis of a light beam incident on and diffracted by a first diffraction grating of a rotatable hologram, and incident on and diffracted by a second diffraction grating of a fixed plate to conduct a scanning and converging on a scanning point on an image formation surface, and an optical path of a light flux measured along a marginal ray distanced from the principal axis or an absolute value of the optical path difference thereof; or a sum total of values obtained by weighting a square of a sum obtained by adding an amount of displacement of a light-beam convergent on a scanning point on the image formation surface, to an amount of displacement of the same light. The displacement measured with respect to the principal axis of a phase recorded on the diffraction grating when the light flux is incident on the fixed plate or by weighting an absolute value of the sum. The weighting is conducted at every scanning position of an image formation surface.
摘要翻译： 高分辨率的光束扫描装置仅利用大量生产的全息图而不是利用辅助光学系统，并且能够补偿缺点。 所述光束扫描装置包括用于最小化以下的衍射光栅：通过对沿着入射和衍射的光束的主轴测量的光通量的光路之间的光程长度差的平方加权而获得的值的总和 通过可旋转全息图的第一衍射光栅，入射并由固定板的第二衍射光栅衍射，以对扫描点进行扫描和会聚，并且沿着图像形成表面测量的光通量的光路 与主轴相距的边缘光线或其光程差的绝对值; 或通过将在图像形成表面上的扫描点上收敛的光束的位移量相加而获得的和的平方加权到相同光的位移量而获得的值的总和。 当光束入射到固定板上时，相对于记录在衍射光栅上的相位的主轴测量的位移或通过加权的绝对值。 加权在图像形成表面的每个扫描位置进行。
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公开(公告)号：US6124955A
公开(公告)日：2000-09-26
申请号：US838935
申请日：1997-04-23
CPC分类号： G02B5/32 , G02B26/106 , G03H1/0005
摘要： A light-beam scanning apparatus includes at least two holograms with an optical path length difference .DELTA..PHI. along a scanning beam light flux. The path length is measured from a light source to a scanning surface in the first hologram, and is represented by .DELTA..PHI.
摘要翻译： 光束扫描装置包括沿扫描光束光通量的至少两个具有光程长度差DELTA PHI的全息图。 路径长度从第一全息图中的光源到扫描面测量，并由DELTA PHI
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公开(公告)号：US5940195A
公开(公告)日：1999-08-17
申请号：US847317
申请日：1997-04-23
CPC分类号： G02B5/32 , G02B26/106 , G03H1/0005
摘要： A high-resolution light-beam scanning apparatus utilizing only mass-producible holograms instead of utilizing auxiliary optical systems such as optical lenses or a mirror having curvature, and capable of compensating for disadvantages including scanning beam thickening and variation, failure of a rotatable hologram to rotate at a constant velocity, displacement of a scanning beam position in the scanning direction and the cross scanning direction due to a mode hop of a wavelength of a semiconductor laser, and deviation of a base of rotatable hologram from a parallel state. These disadvantages are detrimental to efforts for increasing the resolution of a hologram scanner and lowering the cost thereof. The light beam scanning apparatus includes at least two holograms with an optical path length difference .DELTA..PHI. along a scanning beam light flux. The path length is measured from a light source to a scanning surface in the first hologram, and is represented by .DELTA..PHI.
摘要翻译： 仅利用大规模生产的全息图的高分辨率光束扫描装置，而不是利用诸如光学透镜或具有曲率的反射镜等辅助光学系统，并且能够补偿包括扫描光束增厚和变化的缺点，可旋转全息图的故障 以恒定速度旋转，由于半导体激光器的波长的模式跳跃而导致的扫描光束位置在扫描方向和横扫描方向上的位移以及可旋转全息图的基底与平行状态的偏离。 这些缺点对于增加全息扫描仪的分辨率并降低其成本的努力是有害的。 光束扫描装置沿扫描光束光束包括至少两个具有光程长度差DELTA PHI的全息图。 路径长度从第一全息图中的光源到扫描面测量，并由DELTA PHI
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