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1. 发明授权

US5861964A Method of manufacturing light beam scanning apparatus and fixed hologram plate and rotatable hologram and light distributing apparatus 失效
标题翻译：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
IPC分类号： G02B5/32 , G02B26/10 , G03H1/12 , G02B5/18 , G02B26/08
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。

2. 发明授权

US5861989A Light beam scanning apparatus 失效
标题翻译：光束扫描装置
公开(公告)号：US5861989A
公开(公告)日：1999-01-19
申请号：US838934
申请日：1997-04-25
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
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 high-resolution light-beam scanning apparatus including a rotatable hologram and a fixed plate which are diffraction gratings for minimizing either a sum total of values obtained by weighting (1): a square of an optical path length difference between a) 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 the rotatable hologram, and incident on and diffracted by a second diffraction grating of the fixed plate so as to conduct a scanning and converging on an image formation surface scanning point, and b) 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 (2) a square of a sum obtained by adding an amount of displacement of a light beam convergent on the scanning point, which displacement is measured along the marginal ray distanced from the principal axis of an incident reconstructing light flux with respect to the principal axis of a phase of the first diffraction grating, to an amount of displacement of the same light, which displacement is measured with respect to the principal axis of a phase recorded on the second diffraction grating, when the light flux is incident on the fixed plate, or by weighting an absolute value of the sum, each weighting being conducted at every scanning position covering an entire range of the image formation surface.
摘要翻译：一种高分辨率光束扫描装置，包括可旋转的全息图和固定板，它们是衍射光栅，用于最小化通过加权（1）得到的值的总和：光路之间的光程长度差的平方沿着可旋转全息图的第一衍射光栅入射并衍射的光束的主轴测量的光通量，并入射并由固定板的第二衍射光栅衍射，以便进行扫描和会聚图像形成表面扫描点，以及b）沿着与主轴相距的边缘光线测量的光通量的光路或其光程差的绝对值; 或者（2）通过将会聚在该扫描点上的光束的位移量相加而得到的和的平方，该位移是沿着相对于主体的入射重建光通量的主轴远离的边缘光线被测量的第一衍射光栅的相位的轴相对于相对于记录在第二衍射光栅上的相位的主轴测量的相同光的位移量，当光束入射到固定板或者通过加权和的绝对值，每个加权在覆盖图像形成表面的整个范围的每个扫描位置进行。

3. 发明授权

US5680253A Light beam scanning apparatus comprising a first and second diffraction grating plate 失效
$Light beam scanning apparatus comprising a first and second diffraction grating plate$
标题翻译：光束扫描装置，包括第一和第二衍射光栅板
公开(公告)号：US5680253A
公开(公告)日：1997-10-21
申请号：US949520
申请日：1992-11-25
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
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 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 principle 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。该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。

4. 发明授权

US5295004A Optical beam scanning apparatus 失效
标题翻译：光束扫描装置
公开(公告)号：US5295004A
公开(公告)日：1994-03-15
申请号：US972520
申请日：1992-11-06
申请人： Shinya Hasegawa , Fumio Yamagishi , Youji Houki , Shigetake Iwata , Shigeo Kayashima , Satoshi Maeda
发明人： Shinya Hasegawa , Fumio Yamagishi , Youji Houki , Shigetake Iwata , Shigeo Kayashima , Satoshi Maeda
IPC分类号： G02B5/32 , G02B26/10
CPC分类号： G02B5/32 , G02B26/106
摘要： An optical beam scanning apparatus includes one rotatable hologram which is rotatable about an axis, and at least two laser beam sources which emit laser beams. The rotatable hologram is provided with at least two hologram areas whose number corresponds to the number of the laser beam sources, so that the laser beams emitted from the respective laser beam sources are made incident upon the respective hologram areas. Each of the hologram areas is provided with a plurality of hologram facets which are concentrically arranged with respect to the axis of rotation of the rotatable hologram to emit laser beams of the same F number. The hologram areas having different numbers of hologram facets having different F numbers.
摘要翻译：光束扫描装置包括可围绕轴线旋转的一个可旋转的全息图以及发射激光束的至少两个激光束源。可旋转全息图设置有至少两个全息区域，其数量对应于激光束源的数量，使得从各个激光束源发射的激光束入射到各个全息图区域。每个全息图区域设置有多个全息面，其相对于可旋转全息图的旋转轴线同心布置以发射相同F数的激光束。全息图区域具有不同数量的具有不同F数的全息图面。

5. 发明授权

US5978111A Light beam scanning apparatus 失效
标题翻译：光束扫描装置
公开(公告)号：US5978111A
公开(公告)日：1999-11-02
申请号：US453668
申请日：1995-05-30
申请人： Shinya Hasegawa , Shigeo Kayashima , Satoshi Maeda , Fumio Yamagishi , Hirokazu Aritake
发明人： Shinya Hasegawa , Shigeo Kayashima , Satoshi Maeda , Fumio Yamagishi , Hirokazu Aritake
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 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。

6. 发明授权

US5892597A Holographic recording apparatus and holographic optical element 失效
标题翻译：全息记录装置和全息光学元件
公开(公告)号：US5892597A
公开(公告)日：1999-04-06
申请号：US877581
申请日：1997-06-17
申请人： Shigetake Iwata , Satoshi Maeda , Shigeo Kayashima , Shinya Hasegawa
发明人： Shigetake Iwata , Satoshi Maeda , Shigeo Kayashima , Shinya Hasegawa
IPC分类号： G02B5/32 , G03H1/30 , G03H1/12 , G03H1/00 , G03H1/26
CPC分类号： G03H1/30 , G02B5/32 , G03H2001/0482 , G03H2001/0491
摘要： A holographic recording apparatus includes first and second light sources for respectively generating first and second light beams. A mask is located in front of a hologram recording material and has an aperture. Interference fringes are recorded in a hologram cell on the hologram recording material corresponding to the aperture. A movement mechanism supports the hologram recording material masked by the mask and relatively moves the hologram recording material with respect to the mask in predetermined directions so that an interference pattern is formed in an area on the hologram recording material. A spatial frequency changing mechanism changes incident angles of the first and second light beams with respect to the mask.
摘要翻译：全息记录装置包括用于分别产生第一和第二光束的第一和第二光源。掩模位于全息记录材料的前面并具有孔。干涉条纹记录在对应于孔的全息图记录材料上的全息图单元中。移动机构支持由掩模掩蔽的全息图记录材料，并相对于掩模在预定方向相对移动全息图记录材料，从而在全息图记录材料上的区域中形成干涉图案。空间频率改变机构改变第一和第二光束相对于掩模的入射角度。

7. 发明授权

US6091544A Light beam scanning apparatus 失效
标题翻译：光束扫描装置
公开(公告)号：US6091544A
公开(公告)日：2000-07-18
申请号：US847316
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 , G02B5/18
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 one being fixed and the other rotatable, where a rate of variation of a direction cosine of an object wave recorded on the fixed plate and taken in a scanning direction of the light on the scanning surface is configured to be different from a rate of variation of a direction cosine of the object wave recorded on the fixed plate and taken in a cross scanning direction of the light on the scanning surface, and focal distances of a light incident on said rotatable hologram are configured to be different in the scanning direction and in the cross scanning direction.
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全息图，一个是固定的，另一个是可旋转的，其中记录在固定板上的物体波的方向余弦的变化率在扫描表面上的光的扫描方向上被配置为不同于记录在固定板上并沿扫描表面上的光的横扫描方向拍摄的物体波的方向余弦变化率，并且入射在所述可旋转全息图上的光的焦距为被配置为在扫描方向和横扫描方向上不同。

8. 发明授权

US6020984A Light beam scanning apparatus using a rotating hologram and a fixed hologram plate 失效
公开(公告)号：US6020984A
公开(公告)日：2000-02-01
申请号：US838987
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-producible holograms instead of utilizing auxiliary optical systems such as an optical lens 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 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 being characterized in that provided in the rotatable hologram (1) and the fixed plate (2) arediffraction gratings for minimizing:either a sum total of values obtained by weighting:a square of an optical path length difference between a) an optical path of a light flux measured along a principal axis MA of a light beam incident on and diffracted by a diffraction grating (1a) of a rotatable hologram (1), and incident on and diffracted by a diffraction grating (2a) of a fixed plate (2) so as to conduct a scanning and converging on a scanning point k on an image formation surface (4), and b) an optical path of a light flux measured along a marginal ray M1 distanced from the principal axis MA; or an absolute value of the optical path difference thereof,the weighting being conducted at every scanning position covering an entire range of the image formation surface (4),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 k on the image formation surface (4), which displacement is measured along the marginal ray M1 distanced from the principal axis MA of an incident reconstructing light flux with respect to the principal axis MA of a phase of the diffraction grating (1a) of the rotatable hologram (1); to an amount of displacement of the same light, which displacement is measured with respect to the principal axis MA of a phase recorded on the diffraction grating (2a) when the light flux is incident on the fixed plate (2); or by weighting an absolute value of the sum,the weighting being conducted at every scanning position covering an entire range of an image formation surface.

9. 发明授权

US5995250A Method for manufacturing light beam scanning apparatus 失效
标题翻译：光束扫描装置的制造方法
公开(公告)号：US5995250A
公开(公告)日：1999-11-30
申请号：US847315
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 method of manufacturing a fixed hologram plate of a light-beam scanning apparatus for diffracting a light incident from a light source portion by a rotatable hologram, scanning by the diffracted light through the rotation of the rotatable hologram, diffracting the resulting light by the fixed hologram plate, and for conducting a light-beam scanning on a scanning surface. The method includes the steps of preparing an interference fringe distribution of the fixed hologram plate by two waves: a first wave having a spherical aberration, a transverse aberration of the first wave is in the Y direction, the transverse wave including an astigmatism and a coma; and a second wave having a spherical aberration and astigmatism, and having a wavelength different from a wavelength of a reconstructing wave that is selected to minimize distortion, wherein a transverse aberration of the second wave is in the X direction.
摘要翻译：一种制造光束扫描装置的固定全息板的方法，用于通过可旋转的全息图衍射从光源部分入射的光，通过可旋转全息图的旋转被衍射光扫描，将所得到的光衍射成固定的全息图板，并用于在扫描表面上进行光束扫描。该方法包括以下步骤：通过两波制备固定全息图板的干涉条纹分布：具有球面像差的第一波，第一波的横向像差在Y方向上，横波包括散光和彗差 ; 以及具有球面像差和像散的第二波，并且具有与被选择为使失真最小化的重构波的波长不同的波长，其中第二波的横向像差处于X方向。

10. 发明授权

US5973837A Light distributing apparatus for dividing the light from a light source into a plurality of lights 失效
标题翻译：用于将来自光源的光分为多个灯的光分配装置
公开(公告)号：US5973837A
公开(公告)日：1999-10-26
申请号：US839079
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 , G02B5/18
CPC分类号： G02B5/32 , G02B26/106 , G03H1/0005
摘要： A light-beam scanning apparatus including a rotatable hologram and a fixed plate, which are provided with diffraction gratings to minimize: either a sum total of values obtained by weighting where 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 diffraction grating of a rotatable hologram, and incident on and diffracted by a diffraction grating of a fixed plate so as 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. Another sum total obtained by weighting requiring minimization is: 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, which displacement is measured along the marginal ray distanced from the principal axis of an incident reconstructing light flux with respect to the principal axis of a phase of the diffraction grating of the rotatable hologram 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 over every scanning position of the formation surface.
摘要翻译：一种包括可旋转全息图和固定板的光束扫描装置，其设置有衍射光栅，以最小化：通过加权获得的值的总和，其中光通量的光路之间的光程长度差的平方沿着入射到可旋转全息图的衍射光栅并由衍射光栅衍射的光束的主轴测量，并由固定板的衍射光栅入射并衍射，以便对图像上的扫描点进行扫描和会聚以及沿着与主轴相距的边缘射线测量的光通量的光路; 或其光程差的绝对值。通过加权要求最小化获得的另一个总和是：通过将在会聚在图像形成表面上的扫描点上的光束的位移量相加获得的和的平方，该位移沿着与主体相距的边缘光线测量将相对于可旋转全息图的衍射光栅的相位的主轴的光束重建为相同光的位移量的入射轴，相对于记录在衍射上的相的主轴测量的位移当光束入射到固定板上时光栅; 或者通过对地层表面的每个扫描位置的和的绝对值加权。

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