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11. 发明授权

US6020999A Light beam scanning apparatus 失效
标题翻译：光束扫描装置
公开(公告)号：US6020999A
公开(公告)日：2000-02-01
申请号：US838937
申请日：1997-04-23
申请人： Shinya Hasegawa , Shigeo Kayashima , Satoshi Maeda , Hirokazu Aritake
发明人： Shinya Hasegawa , Shigeo Kayashima , Satoshi Maeda , Hirokazu Aritake
IPC分类号： G02B5/32 , G02B26/10 , G03H1/12
CPC分类号： G02B5/32 , G02B26/106 , G03H1/0005
摘要： A high-resolution light-beam scanning apparatus utilizing only mass-producable holograms instead of utilizing auxiliary optical systems such as optical lenses or a mirror having curvature. The light beam scanning apparatus is 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 a rotatable hologram from a parallel state, which disadvantages are detrimental to efforts for increasing the resolution of a hologram scanner and lowering the cost thereof. The light beam scanning apparatus incudes at least two holograms with an optical path length difference .DELTA..PHI.
摘要翻译：仅使用可批量生产的全息图而不是使用诸如光学透镜或具有曲率的反射镜的辅助光学系统的高分辨率光束扫描装置。光束扫描装置能够补偿扫描光束增厚和变化，可旋转全息图以恒定速度旋转的故障，扫描方向上的扫描光束位置的偏移和由于模式跳跃而产生的横向扫描方向的缺点半导体激光器的波长以及可旋转全息图的基底与平行状态的偏差，这些缺点对于增加全息扫描仪的分辨率和降低其成本的努力是有害的。光束扫描装置包含光路长度差DELTA PHI <（λ2 / Dλ）的至少两个全息图，其中<常数小于0.5。路径长度根据上述方程与在光表面的中心处的波长λ相关，并且在光表面的中心处从波长+558测量的波长位移DELTAλλ。

12. 发明授权

US5550655A Laser beam optical scanner 失效
标题翻译：激光束光学扫描仪
公开(公告)号：US5550655A
公开(公告)日：1996-08-27
申请号：US232344
申请日：1994-04-22
申请人： Shigeo Kayashima , Shinya Hasegawa , Satoshi Maeda , Hirokazu Aritake
发明人： Shigeo Kayashima , Shinya Hasegawa , Satoshi Maeda , Hirokazu Aritake
IPC分类号： G02B5/32 , G02B26/10 , G03H1/22 , G02B36/10
CPC分类号： G02B26/106
摘要： A laser beam passes through two holograms or through a hologram twice to reduce the ratio .lambda./d so that P-polarized light, as well as S-polarized light, can be diffracted with high diffraction efficiency and uses a hologram or holograms formed on a base plate and facilitates the separation of a stamper from the base plate in producing replicas of the hologram. A laser beam (5) passes through two holograms formed on a transparent base plate or through a hologram formed on a transparent base plate twice. The ratio .lambda./d, where .lambda. is the wavelength of the laser beam and d is the grating constant of the hologram, is in the range of 0.4 to 1.1.
摘要翻译：激光束通过两个全息图或通过全息图两次以减小λ/ d比，使得P偏振光以及S偏振光可以以高衍射效率被衍射，并且使用形成在全息图上的全息图或全息图并且有助于在制造全息图的副本时将压模与基板分离。激光束（5）通过形成在透明基板上的两个全息图或通过形成在透明基板上的全息图两次。比率λ/ d，其中λ是激光束的波长，d是全息图的光栅常数，在0.4至1.1的范围内。

13. 发明授权

US6040929A Light beam scanning apparatus 失效
标题翻译：光束扫描装置
公开(公告)号：US6040929A
公开(公告)日：2000-03-21
申请号：US844994
申请日：1997-04-23
申请人： Shinya Hasegawa , Shigeo Kayashima , Satoshi Maeda , Hirokazu Aritake
发明人： Shinya Hasegawa , Shigeo Kayashima , Satoshi Maeda , Hirokazu Aritake
IPC分类号： G02B5/32 , G02B26/10 , G03H1/12 , G02B27/44
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, one rotatable and one fixed, wherein the fixed hologram plate has a phase distribution .PHI..sub.H represented as a difference obtained when subtracting a reference wave phase .PHI..sub.0 from an object wave phase .PHI..sub.R, where X is a scanning direction and Y is a cross scanning direction, C.sub.0, C.sub.1, C.sub.2, Y.sub.0, and Z.sub.0 are constants, where .lambda..sub.2 is a wavelength of said incident light; and .lambda..sub.1 is a wavelength of a constructing wave used for forming said fixed hologram plate.
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。光束扫描装置包括至少两个可旋转和一个固定的全息图，其中固定全息图板具有相位分布PHI H，该相位分布PHI H表示为从对象波相位PHI R减去参考波相位PHI 0时获得的差值，其中 X是扫描方向，Y是交叉扫描方向，C0，C1，C2，Y0和Z0是常数，其中λ2是所述入射光的波长; λ1是用于形成所述固定全息图板的构造波的波长。

14. 发明授权

US5900955A Optical scanning system including two hologram elements 失效
标题翻译：光学扫描系统包括两个全息元件
公开(公告)号：US5900955A
公开(公告)日：1999-05-04
申请号：US861639
申请日：1997-05-22
申请人： Hiroyasu Yoshikawa , Shinya Hasegawa , Satoshi Maeda , Shigeo Kayashima , Fumio Yamagishi
发明人： Hiroyasu Yoshikawa , Shinya Hasegawa , Satoshi Maeda , Shigeo Kayashima , Fumio Yamagishi
IPC分类号： G02B5/32 , G02B5/18 , G02B26/10 , G02B26/12
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。

15. 发明授权

US6124955A Light beam scanning apparatus 失效
标题翻译：光束扫描装置
公开(公告)号：US6124955A
公开(公告)日：2000-09-26
申请号：US838935
申请日：1997-04-23
申请人： Shinya Hasegawa , Fumio Yamagishi , Masato Nakashima
发明人： Shinya Hasegawa , Fumio Yamagishi , Masato Nakashima
IPC分类号： G02B5/32 , G02B26/10 , G03H1/12 , G02B5/18
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

16. 发明授权

US5940195A Light beam scanning apparatus 失效
标题翻译：光束扫描装置
公开(公告)号：US5940195A
公开(公告)日：1999-08-17
申请号：US847317
申请日：1997-04-23
申请人： Shinya Hasegawa , Fumio Yamagishi , Masato Nakashima
发明人： Shinya Hasegawa , Fumio Yamagishi , Masato Nakashima
IPC分类号： G02B5/32 , G02B26/10 , G03H1/12
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

17. 发明授权

US5361149A Optimized design method for holographic optical element and apparatus using such holographic optical element 失效
标题翻译：全息光学元件的优化设计方法和使用这种全息光学元件的设备
公开(公告)号：US5361149A
公开(公告)日：1994-11-01
申请号：US853624
申请日：1992-03-19
申请人： Shinya Hasegawa , Shigeo Kayashima
发明人： Shinya Hasegawa , Shigeo Kayashima
IPC分类号： B41J2/44 , G02B5/32 , G02B26/10 , G03H1/08
CPC分类号： G02B5/32 , G02B26/106
摘要： An optimized design method of a holographic optical element by calculating a correction coefficient so that an evaluating amount of a reconstructed light reconstructed by the holographic optical element can be minimized, the correction coefficient determining an aspheric term included in a phase transfer function, the phase transfer function representing a shape of an interference fringe recorded on the holographic optical element. According to the method, the wavefront aberration is expressed via a linear function of the correction coefficient by positioning a main axis point on a characteristic evaluating surface onto which the reconstructed light is projected, so that a wavefront aberration of the reconstructed light can be minimized. Then, the correction coefficient is calculated based on the linear function so that the evaluating amount can minimized.
摘要翻译：通过计算校正系数使得由全息光学元件重建的重建光的评估量可以最小化的全息光学元件的优化设计方法，确定包括在相位传递函数中的非球面项的校正系数，相位转移表示记录在全息光学元件上的干涉条纹的形状的功能。根据该方法，通过将主轴点定位在其上投射有重构光的特性评估表面上，通过校正系数的线性函数来表示波前像差，从而可以使重构光的波前像差最小化。然后，基于线性函数计算校正系数，使得评估量可以最小化。

18. 发明授权

US4904033A Method for constructing holograms 失效
标题翻译：构造全息图的方法
公开(公告)号：US4904033A
公开(公告)日：1990-02-27
申请号：US196754
申请日：1988-05-18
申请人： Hiroyuki Ikeda , Fumio Yamagishi , Shinya Hasegawa , Syunji Kitagawa , Kozo Yamazaki , Takefumi Inagaki
发明人： Hiroyuki Ikeda , Fumio Yamagishi , Shinya Hasegawa , Syunji Kitagawa , Kozo Yamazaki , Takefumi Inagaki
IPC分类号： G03H1/04 , G03H1/20
CPC分类号： G03H1/0248 , G03H1/202 , G03H1/0005 , G03H1/265 , G03H2001/205 , G03H2001/2615 , G03H2222/36 , G03H2250/12 , Y10S359/90
摘要： A method for constructing a hologram by use of a master hologram which includes a predetermined pattern of interference fringes formed thereon by optical interference of a plurality of constructing coherent light beams incident at different angles. The method includes preparing a photosensitive medium, in which the hologram is to be formed, on the master hologram, and copying the master hologram onto the photo-sensitive medium by impinging copying light beams onto the master hologram at an incident angle different from the angles of the constructing beams.
摘要翻译：一种通过使用主全息图构成全息图的方法，该主全息图包括通过以不同角度入射的多个构成相干光束的光学干涉在其上形成的干涉条纹的预定图案。该方法包括在主全息图上制备其中要形成全息图的光敏介质，并通过以不同于角度的入射角照射到主全息图上来将主全息图复制到光敏介质上的构造梁。

19. 发明授权

US4810046A Light beam scanning apparatus 失效
标题翻译：光束扫描装置
公开(公告)号：US4810046A
公开(公告)日：1989-03-07
申请号：US120727
申请日：1987-11-16
申请人： Fumio Yamagishi , Shinya Hasegawa , Hiroyuki Ikeda , Takefumi Inagaki
发明人： Fumio Yamagishi , Shinya Hasegawa , Hiroyuki Ikeda , Takefumi Inagaki
IPC分类号： G02B26/10 , G06K15/12 , H04N1/113
CPC分类号： G06K15/1285 , G02B26/106
摘要： In a light beam scanning apparatus using a hologram rotator, a post-hologram is provided for further diffracting a light beam diffracted by the hologram rotator to a direction opposite to that of the direction in which the light beam is diffracted by the hologram rotator. By combining the kinds of wave fronts used for forming the holograms of the holograms rotator and the post-hologram, the light beam scanning apparatus reduces the deviation of the light beam scanning position caused by the mode hopping of a laser diode, and an improved linear scanning of the light beam and/or image focusing characteristic is obtained.
摘要翻译：在使用全息图旋转器的光束扫描装置中，提供后全息图，用于进一步将由全息图旋转器衍射的光束衍射到与通过全息图旋转器衍射光束的方向相反的方向。通过组合用于形成全息图旋转器的全息图和后全息图的波前的种类，光束扫描装置减少了由激光二极管的模式跳变引起的光束扫描位置的偏差，并且改善的线性获得光束的扫描和/或图像聚焦特性。

20. 发明授权

US4925262A Method and apparatus for light beam scanning using a hologram 失效
标题翻译：使用全息图进行光束扫描的方法和装置
公开(公告)号：US4925262A
公开(公告)日：1990-05-15
申请号：US273624
申请日：1988-11-17
申请人： Fumio Yamagishi , Shinya Hasegawa , Hiroyuki Ikeda
发明人： Fumio Yamagishi , Shinya Hasegawa , Hiroyuki Ikeda
IPC分类号： G06K7/12 , G02B5/32 , G02B26/10 , G06K15/12 , H04N1/113
CPC分类号： G06K15/1285 , G02B26/106
摘要： A method for constructing a hologram on a transparent disk which includes two steps. First, irradiating a reference wave light beam having a diverging spherical wave front from a first point light source located at a predetermined distance on a center axis of the transparent disk. Second, irradiating an object wave light beam having a diverging spherical wave front from a second point light source located at a predetermined distance on a normal line away from a predetermined distance from the center axis. The result is interference between the reference wave light beam irradiated by the first point light source and the object wave light beam irradiated by the second point light source on the transparent disk and the formation of interference fringes having an extreme value of a spatial frequency as a hologram in one embodiment, a reconstruction beam is irradiated to the position, or in the vicinity of the extreme value.
摘要翻译：一种在透明盘上构造全息图的方法，包括两个步骤。首先，从位于透明盘的中心轴上的预定距离的第一点光源照射具有发散的球面波前的参考波光束。其次，从距离中心轴规定距离的法线上距预定距离的第二点光源照射具有发散球面波的物波光束。结果是由第一点光源照射的参考波光束与由透明盘上的第二点光源照射的物体光束之间的干涉，以及具有空间频率的极值的干涉条纹的形成为在一个实施例中，全息图将重建光束照射到极值的位置或附近。

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