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BuKePrinting >> knowledge >> 包裝廠家體積全息圖的復制

包裝廠家體積全息圖的復制

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2021-02-27 | 445 Views | Share:
方向和波長各方面都與製作時的參考光波相同。復制時，相對的兩個乳膠面之間滴入折射液，以使折射率匹配，將反射乾涉減至最小。

          包裝廠家體積全息圖的復制

體積全息圖可視為體光柵，只有滿足相應條件時才能得到行射的主極大值。也就是說，體積全息圖的衍射效率對照明光的關鍵是照明原始全息圖H1的光波應在曲率、

方向和波長各方面都與製作時的參考光波相同。復制時，相對的兩個乳膠面之間滴入折射液，以使折射率匹配，將反射乾涉減至最小。

這樣，復製片的衍射率幾乎與原始全息的相同。復製片並不再現雙像，但L的距離必須保證於涉的兩束光波在H的整個乳膠面上酸由於體積全息圖不同時，

再現原始像光波和共像光波，固此當，有一距離特印別技術透射型體積全息的復制可採取光路，而反射型的必須將原始全息圖從和復制底片的位置交換

，仍然保持它們的乳膠面對貼，圖3-35是復制全息圖的再現原始反射體全息圖是吸收型的，由於它的衍射效率很低，因而復制全息圖上乾涉條紋的對比度很低，

使得復制全息圖的帶射效率也很低。如果原始反射全息圖是記錄在DCG上的光路。位相全息圖，那麽由於它的高衍射效率，

使復制全息圖的成像質量和行射效率都很高反射體積全息圖的復制和再現。

包裝廠家體積全息圖的復制
包裝廠家體積全息圖的復制

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