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3 Holographic Interferometry for Studying …
without hologram shifts (see Figs. 3.49, 3.50, 3.51, 3.52 and 3.54). If the polarization
vector is changed simultaneously with the image recorded on the holograms from
the one side of the substrate, there occurs an image reconstructed on the other side
of the hologram, which reaches the maximal intensity under optimal transmissivity
of the polaroid substrate.
Thus, during recording on ordinary media, a possibility occurs to smoothly turn
one image into another with simultaneous visualization of all images. It is possible
to sequentially reconstruct different positions of the holographed objects through
changing polarization vector direction during the record of holograms of the shifted
object in different directions of the polarization vector while using light-sensitive
media with light-induced anisotropy (e.g., on the base of the Weigehrt’s effect).
Thus, the effect of moving 3D image is conducted.
The advantages of the described image forming method in comparison to the
well-known ones consist in the fact that while using a source with regulated radiation
characteristics (intensity, coherence, spectral composition, polarization) there occurs
a possibility of forming and reconstruction of combined holographic, as well as
holographic and non-coherent two-dimensional images, control of the reconstruction
process and selection of the recorded information.
To implement the described effects in practice, in particular the effect of transition
of a plane image into a three-dimensional one and vice versa, L.V. Tanin, the author
used the light source of changing intensity and spatial coherence.
A hologram, which was created using the image forming method, bears qualitatively new information about the object. It realizes the possibility of gradual transition
from the plane image to the three-dimensional one. To do this, it is enough to change
the intensity of an ordinary source with a continuous spectrum of radiation, which
reconstructs the combined image. A combination of 3D and plane image enhances
spatial conception about the object presented on the plane. The image forming method
intensifies the perception effect of images of objects, scenes, compositions, reconstructed from holograms and provides continuity of obtaining and the increase of the
taken information. This is reached through getting a combined plane and 3D images,
which are complimentary to each other. This method gives the possibility to form
and reconstruct combined images in bulk, color, motion.
On the advice of USSR State committee on inventions and discoveries (letter
No. 18–25/2, 872, 202 dated 26.03.80) materials on the application for a patent No.
2872202/25 dated 06.02.80, “The image forming methods” was filed in the USSR and
abroad, in the USA, France, FRG, the ChSSR, the PRP, and for them, patents were
acquired [278–286]. In 1993, “Samsung Electronics Corporation, Ltd.” addressed a
request to L.V. Tanin, the main author of the patent and one of the authors of this
monography, for transfer of rights for the patented in the USA invention “The image
forming methods” (patent No. 4420218 dated 13.12.83).
This invention was realized in the first holographic industrial model in the USSR
(certificate of authorship No. 10534 dated May 20, 1980) “The Olympic holographic
sign.” On the occasion of XXII Olympic Games in Moscow on the basis of the
described methods, a technology of holographic signs was designed, and serial
production was organized at Minsk Mechanical Plant named after S.I. Vavilov (about
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