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    • 5. 发明申请
    • Adjustable Beam Size Illumination Optical Apparatus and Beam Size Adjusting Method
    • 可调节光束尺寸照明光学装置和光束尺寸调整方法
    • US20110228537A1
    • 2011-09-22
    • US13049089
    • 2011-03-16
    • Keiko YOSHIMIZUHiroshi AoyamaShigenobu MaruyamaYasuhiro Yoshitake
    • Keiko YOSHIMIZUHiroshi AoyamaShigenobu MaruyamaYasuhiro Yoshitake
    • F21V5/04
    • G02B27/0955
    • An adjustable beam size illumination optical apparatus includes a beam size adjusting optical system which includes groups of cylindrical array lenses disposed correspondingly to the long and short axis directions respectively and having variable intervals among the lenses, and a group of cylindrical telescope lenses disposed correspondingly to one of the long and short axis directions and having variable intervals among the lenses, and adjusts parallel light from a light source in size in accordance with the two axis directions orthogonal to each other. The lens interval of one of the cylindrical array lens groups and the cylindrical telescope lens group is changed to adjust a beam size on a projection surface in accordance with the long axis direction or the short axis direction. Thus, it is possible to adjust the beam size in accordance with the long axis direction and the short axis direction individually, and it is possible to make irradiation with the beam with uniform intensity.
    • 可调光束尺寸照明光学装置包括光束尺寸调整光学系统,该光束尺寸调整光学系统包括分别对应于长轴和短轴方向设置的圆柱形阵列透镜组,并且在透镜之间具有可变的间隔,以及一组圆柱形望远镜,其对应于一个 并且在透镜中具有可变的间隔,并且根据彼此正交的两个轴方向来调整来自光源的尺寸的平行光。 根据长轴方向或短轴方向,改变圆柱形阵列透镜组和圆柱形望远镜透镜组中的一个的透镜间隔,以调整投影表面上的光束尺寸。 因此,可以分别根据长轴方向和短轴方向调整光束尺寸,并且可以以均匀的强度对光束进行照射。