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    • 2. 发明公开
    • Computer-generated hologram and its fabrication process
    • 合成Hologramm undzugehörigesHerstellungsverfahren
    • EP1484651A1
    • 2004-12-08
    • EP02028430.3
    • 2002-12-18
    • DAI NIPPON PRINTING CO., LTD.
    • Kitamura, Mitsuru
    • G03H1/08G03H1/26
    • G03H1/0841G03H1/028G03H1/0808G03H2001/0478G03H2001/085G03H2001/2242G03H2210/30G03H2210/32G03H2210/33G03H2210/36G03H2210/441G03H2210/452G03H2210/55G03H2210/56G03H2240/41G03H2240/62
    • The invention relates to a computer-generated hologram fabrication process that enables a plurality of original images to be observed with master-slave relations. Original images 11, 12, a recording surface 20 and reference light R are defined on a computer, and a number of point light sources P11-1, ..., P12-1, ... as samples are defined on each original image. Given angles of spreading of object light beams emitted from individual point light sources are defined, and areas on the recording surface 20, at which object light beams emitted from point light sources defined on each original image 11, 12 with the thus limited given angles of spreading arrive, are determined as recording areas α11 and α12 corresponding to the original images 11 and 12. When there is an overlapping (hatched) portion in the recording areas, the overlapping portion is determined as a recording area corresponding to the master original image. Within the area α11 there is recorded only information about the original image 11, and within the area α12 there is recorded only information about the original image 12. Upon reconstruction, the boundary portion of the master original image is enhanced.
    • 本发明涉及计算机生成的全息图制作过程,其使得能够以主从关系来观察多个原始图像。 在计算机上定义原始图像11,12,记录表面20和参考光R,并且在每个原始图像上定义多个点光源P11-1,...,P12-1,...作为样本 。 定义了从各个点光源发射的物体光束的扩展角度,以及记录表面20上的区域,在该区域处,由在每个原始图像11,12上限定的点光源发射的物体, 被确定为对应于原始图像11和12的记录区域α11和α12。当记录区域中存在重叠(阴影)部分时,重叠部分被确定为对应于主原件的记录区域 图片。 在区域α11内仅记录关于原始图像11的信息,并且在区域α12内仅记录关于原始图像12的信息。在重建时,主原始图像的边界部分被增强。