A new method for registering stereograms where orientated interference fringes provide the desired directivity for horizontal parallax is presented. With the help of a strip shaped mask behind the ground glass, the stereograms obtained by this newly developed method produce a rainbow effect. In addition to having a wide angle of view, these stereo images can also be observed under an extended white light source. In addition, the plane hologram characteristics of the stereo images obtained by this method indicates that the image size will not scale with the variations of the reconstructing light source. A quantitative analysis on the distortion problems related to this method is discussed. The distortion-free conditions for making a holographic stereogram was developed using this theoretical analysis. A sensitivity analysis related to the viewing position errors for images recorded using this method is also presented. [References: 15]
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