Abstract

We demonstrate a simple holographic technique that permits enlargement of the holographic image at the reconstruction stage. The technique employs a spherical mirror to generate an image that straddles the hologram to produce the maximum depth. The holographic image is projected with a white-light reconstruction beam, a lens, and a transmission diffractive screen to an enlargement of up to 5× linear magnification. Wavelength encoding of views is a new process that projects the holographic image by using all the visible spectrum and low-f -number lenses and allows for 18 simultaneous observers.

© 1994 Optical Society of America

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