Okoshi T, Hotate K
Appl Opt. 1975 Dec 1;14(12):3078-81. doi: 10.1364/AO.14.003078.
Projection-type unidirectional holography is a promising three-dimensional imaging technique. However, the high cost of lasers in the reconstruction degrades its usefulness. This paper proposes a white-light-reconstruction version of the projection-type holography. The principle, design theory, and experiments are described. When a hologram is illuminated by a white light, the diffracted light exhibits color dispersion. The proposed method features the use of a holographically prepared diffraction grating for the compensation of the dispersion and of a simple device (called an optical channel) to cut off the nondiffracted components. Photographs of the reconstructed images show good agreement with the theory.
投影型单向全息术是一种很有前景的三维成像技术。然而，重建过程中激光器的高成本降低了其实用性。本文提出了一种投影型全息术的白光重建版本。文中描述了其原理、设计理论和实验。当用白光照射全息图时，衍射光会出现色散现象。所提出的方法的特点是使用全息制备的衍射光栅来补偿色散，并使用一个简单的装置（称为光通道）来切断未衍射的成分。重建图像的照片与理论结果吻合良好。
