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    • 41. 发明授权
    • Laser exposure device and optical axis adjustment method in laser exposure device
    • 激光曝光装置中的激光曝光装置和光轴调整方法
    • US08054326B2
    • 2011-11-08
    • US12477961
    • 2009-06-04
    • Takeshi EndoTakahiro KojimaKazutoshi Takahashi
    • Takeshi EndoTakahiro KojimaKazutoshi Takahashi
    • B41J2/44
    • G03G15/04072G03G15/0435
    • In a laser exposure device according to the present invention, a positioning pin, which is formed in a lens holder supporting a lens system, is inserted through an elongated hole for restriction of a board holder supporting a laser diode. An eccentric cam is inserted into an elongated hole for rotation movement formed in a board holder and a circular hole for rotation movement which is formed in the lens holder and which faces the elongated hole for rotation movement. An eccentric cam is inserted into an elongated hole for slide movement formed in the board holder and a circular hole for slide movement which is formed in the lens holder and which faces the elongated hole for slide movement. The eccentric cams are rotated to relatively move the board holder and lens holder with respect to each other to thereby establish alignment between the optical axes of the laser diode and lens system. In a state where the eccentric cams are fitted into the elongated holes, the board holder and lens holder are fixed to each other by screws.
    • 在根据本发明的激光曝光装置中,形成在支撑透镜系统的透镜支架中的定位销被插入通过长孔以限制支撑激光二极管的板支架。 偏心凸轮被插入到用于旋转运动的长孔中,形成在板保持器中的旋转运动和用于旋转运动的圆形孔,其形成在透镜保持器中并面向用于旋转运动的细长孔。 偏心凸轮被插入到用于滑动运动的细长孔中,形成在板保持器中,并且用于滑动运动的圆形孔形成在透镜保持器中并面对用于滑动运动的长孔。 偏心凸轮旋转以相对于彼此相对地移动板保持器和透镜保持器,从而在激光二极管和透镜系统的光轴之间建立对准。 在将偏心凸轮装配到细长孔中的状态下,通过螺钉将板保持器和透镜保持器彼此固定。
    • 45. 发明申请
    • HOLOGRAM OPTICAL ELEMENT, FABRICATION METHOD THEREOF, AND IMAGE DISPLAY APPARATUS
    • HOLOGRAM光学元件,其制造方法和图像显示装置
    • US20080297866A1
    • 2008-12-04
    • US12126105
    • 2008-05-23
    • Takeshi EndoYoshie Shimizu
    • Takeshi EndoYoshie Shimizu
    • G02B27/01G02B5/32G03H1/02
    • G03H1/04G02B5/32G02B27/0103G02B27/1073G02B27/1086G02B2027/0109G02B2027/0123G03H2001/0439G03H2001/2231G03H2222/55
    • A volume-phase reflection hologram optical element is fabricated by exposing a hologram photosensitive material to two coherent light beams. One exposure light beam has an axis-asymmetric wavefront, and the other exposure light beam has focus points different in the optical axis direction (Z-direction) between on a plane (ZX-plane) including one of two directions (X- and Y-directions) mutually perpendicular on a sectional plane perpendicular to that light beam and on a plane (YZ-plane) including the other of those two directions. Thus, an image display apparatus is realized in which at the time of reproduction, the component of a predetermined wavelength of the image light diffraction-reflected by the hologram optical element is focused at positions different in the optical axis direction between on the ZX-plane and on the YZ-plane, offering different image viewing characteristics between in the X- and Y-directions.
    • 通过将全息图感光材料曝光于两个相干光束来制造体积相位反射全息光学元件。 一个曝光光束具有轴非对称波前,另一个曝光光束在包括两个方向之一的平面(ZX平面)上的光轴方向(Z方向)上具有不同的焦点(X和Y 二维)在垂直于该光束的截面上和在包括这两个方向中的另一个的平面(YZ-平面)上相互垂直。 因此,实现了一种图像显示装置,其中在再现时,由全息光学元件衍射反射的图像光的预定波长的分量被聚焦在Z轴平面上的光轴方向上不同的位置 并且在YZ平面上,在X和Y方向之间提供不同的图像观看特性。
    • 47. 发明申请
    • HOLOGRAM OPTICAL ELEMENT, METHOD OF FABRICATION THEREOF, AND IMAGE DISPLAY APPARATUS
    • HOLOGRAM光学元件,其制造方法和图像显示装置
    • US20080186547A1
    • 2008-08-07
    • US12024431
    • 2008-02-01
    • Yoshie SHIMIZUTakeshi Endo
    • Yoshie SHIMIZUTakeshi Endo
    • G02B27/01G03H1/26G02B5/32
    • G02B5/32G02B27/0172G02B2027/0109G02B2027/0116G02B2027/0174G03H1/0248G03H1/0486G03H1/26G03H1/2645G03H2001/0415G03H2001/0439G03H2001/266G03H2222/18
    • As a result of the light from a plurality of point light sources located at an identical position being refracted at a surface of a color correction prism at the time of exposure, the chromatic aberration occurring as a result of the light (for example, image light) directed via a refractive surface of the optical system used at the time of reconstruction to the viewer's pupil being refracted at this refractive surface is corrected for. Moreover, at least two of another set of a plurality of point light sources are arranged at such positions as to provide angles of incidence commensurate with the deviation between them of the ratio between exposure wavelength and use wavelength. Thus, even in a case where the ratio between exposure wavelength and use wavelength differs between at least two colors, it is possible to make equal for all colors the angle of diffraction that provides the maximum diffraction efficiency at the hologram optical element at the time of reconstruction, and thereby to correct for color shifting depending on the viewing angle.
    • 由于来自位于相同位置处的多个点光源的光在曝光时在色彩校正棱镜的表面处被折射的结果是由于光而产生的色像差(例如,图像光 )经由重建时使用的光学系统的折射表面被引导到在该折射表面处被折射的观察者的瞳孔。 此外,另外一组多个点光源中的至少两个设置在这样的位置处,以提供与曝光波长和使用波长之间的比率之间的偏差相对应的入射角。 因此,即使在曝光波长和使用波长之间的比例至少两种颜色之间不同的情况下,也可以使全息图光学元件的衍射效率在全息光学元件时提供最大衍射效率的所有颜色相等 重建,从而根据视角校正颜色偏移。
    • 49. 发明申请
    • LASER EXPOSURE DEVICE AND OPTICAL AXIS ADJUSTMENT METHOD IN LASER EXPOSURE DEVICE
    • 激光曝光装置和激光曝光装置中的光轴调整方法
    • US20070195212A1
    • 2007-08-23
    • US11675421
    • 2007-02-15
    • Takeshi EndoTakahiro KojimaKazutoshi Takahashi
    • Takeshi EndoTakahiro KojimaKazutoshi Takahashi
    • G02F1/1335
    • G03G15/04072G03G15/0435
    • In a laser exposure device according to the present invention, a positioning pin, which is formed in a lens holder supporting a lens system, is inserted through an elongated hole for restriction of a board holder supporting a laser diode. An eccentric cam is inserted into an elongated hole for rotation movement formed in a board holder and a circular hole for rotation movement which is formed in the lens holder and which faces the elongated hole for rotation movement. An eccentric cam is inserted into an elongated hole for slide movement formed in the board holder and a circular hole for slide movement which is formed in the lens holder and which faces the elongated hole for slide movement. The eccentric cams are rotated to relatively move the board holder and lens holder with respect to each other to thereby establish alignment between the optical axes of the laser diode and lens system. In a state where the eccentric cams are fitted into the elongated holes, the board holder and lens holder are fixed to each other by screws.
    • 在根据本发明的激光曝光装置中,形成在支撑透镜系统的透镜支架中的定位销被插入通过长孔,用于限制支撑激光二极管的板支架。 偏心凸轮被插入到用于旋转运动的长孔中,形成在板保持器中的旋转运动和用于旋转运动的圆形孔,其形成在透镜保持器中并面向用于旋转运动的细长孔。 偏心凸轮被插入到用于滑动运动的细长孔中,形成在板保持器中,并且用于滑动运动的圆形孔形成在透镜保持器中并面对用于滑动运动的长孔。 偏心凸轮旋转以相对于彼此相对地移动板保持器和透镜保持器,从而在激光二极管和透镜系统的光轴之间建立对准。 在将偏心凸轮装配到细长孔中的状态下,通过螺钉将板保持器和透镜保持器彼此固定。
    • 50. 发明申请
    • Beam expanding optical element, beam expansion method, image display apparatus, and head-mounted display
    • 光束扩展光学元件,光束扩展方法,图像显示装置和头戴式显示器
    • US20070188837A1
    • 2007-08-16
    • US11703299
    • 2007-02-07
    • Yoshie ShimizuTakeshi Endo
    • Yoshie ShimizuTakeshi Endo
    • G03H1/00
    • G02B5/32G02B5/203G02B6/00G02B27/0172G02B27/1053G02B27/1086G02B2027/0116G02B2027/0174G02B2027/0178G03H1/0408G03H2001/261G03H2270/55
    • A first HOE and a second HOE are respectively arranged on two opposite faces of an optical waveguide member. The first HOE diffracts light incident from the outside on the optical waveguide member such that the light is then totally reflected inside the optical waveguide member and is thereby directed to the second HOE. The second HOE diffracts, according to the diffraction efficiency thereof, part of the light incident thereon after being guided inside the optical waveguide member such that this part of the light is then emitted to the outside substantially parallel to the light incident on the optical waveguide member, and the second HOE simultaneously totally reflects the rest of the light incident thereon. The second HOE repeats such emission and total reflection. The first and second HOEs each have interference fringes with n different pitches (where n is a natural number equal to or greater than two) to diffract light of n different wavelengths at substantially equal angles. Thus, even when light of n different wavelengths is incident on the optical waveguide member, the second holographic diffractive optical element emits it to the outside with substantially equal pitches for the light of the n different wavelengths.
    • 第一HOE和第二HOE分别布置在光波导构件的两个相对的面上。 第一HOE将从外部入射的光衍射到光波导构件上,使得光在光波导构件内部全反射,从而被引导到第二HOE。 第二HOE根据其衍射效率衍射在光波导部件内被引导之后入射到其上的光的一部分,使得该部分的光然后被发射到基本上平行于入射在光波导部件上的光的外部 并且第二HOE同时完全反映入射到其上的光的其余部分。 第二个HOE重复这种排放和全面反射。 第一和第二HOE各自具有n个不同间距(其中n是等于或大于2的自然数)的干涉条纹,以基本相等的角度衍射n个不同波长的光。 因此,即使在n个不同波长的光入射到光波导部件上的情况下,第二全息衍射光学元件对于n个不同波长的光以相等的间距发射到外部。