Study of relationship between recording wavelength and hologram compression

The present paper, based on the information theory of Shannon, studies the relationship between recording wavelength and hologram information content, and acquires the conclusion that hologram information content is inversely proportional to the square of the recording wavelength. And at the same time, we analyze two factors limiting human eye's resolving power, including pupil size and discrete photoreceptors in the human retina, and work out the number of 3D object points that can be resolved. Furthermore, we find out the recording wavelength of a hologram whose information content matches that of a reconstructed image. On the other hand, reconstruction of a hologram with visible light and recorded with long wavelength is elaborated theoretically. Therefore, it offers a brand-new thought and practical way to reduce the hologram information content, and eliminate its redundancy further.