New Method For Rainbow Holograms

In this paper, holographic imaging made the overall introduction, the principle of holographic imaging, two-step rainbow holography, one-step rainbow holography, synthetic slit theory, the use of synthetic slit to make rainbow holography. Then proposed a new method of production of rainbow holography,rainbow holography using a dual lens with no slit, no slit rainbow holographyHolographic interference such as light diffraction through the records of the intensity and phase object information. Through the conjugate reference beam as a three-dimensional recovery. Rainbow hologram is divided into the basic two-step rainbow hologram and one-step rainbow hologram. In the process of adding records slit, When irradiated with white light, the white light with various wavelengths of light in different positions of the other side to be as complete. The location of different wavelengths as different, Imaging slit at the same time in different locations when the eyes will see different wavelengths, slot due to the existence of other wavelengths can be blocked.A new one-step method of rainbow holography is described which makes use of the full aperture of the object wave.Motion imparted to the object or a superposed diffuse background during recording generates an aperture of transmittance proportional to the Sinc function in the reconstruction.A small translational motion imparted to the imaging lens produces the desired modulation, a Sinc function, that can be used on reconstruction to obtain a rainbow hologram.