通过实验研究表明，对低空间频率（＜１００ｌｐ／ｍｍ）的振幅型（吸收型）银盐全息图形表面已形成浮雕（实验中测得最大深度在１．５μｍ以上），经漂白，浮雕深度成倍加深；浮雕深度随空间频率而变化，并且可用不同曝光量进行调制。选择适当条件，可降低（甚至消除）零级光强，提高全息图的一级衍射效率。作为应用实例，本文给出了具有较高衍射效率和信噪比的计算全息图的实验结果。 Experimental studies have shown that the amplitude (absorption) silver salt holographic surface has been formed in relief (the maximum depth measured in the experiment is more than 1.5μm) for low spatial frequencies (<100lp / mm). After bleaching, Times deepened; relief depth changes with the spatial frequency, and can be modulated with different exposure. Select the appropriate conditions, can reduce (or even eliminate) zero-order light intensity, improve the holographic first-order diffraction efficiency. As an application example, the experimental results of a computed hologram with higher diffraction efficiency and signal-to-noise ratio are given.