278
3 Holographic Interferometry for Studying …
Fig. 3.50 Object
conventionally divided by
plane. Reprinted from [94]
with permission
Fig. 3.51 Recording scheme
of a holographic image of a
part of an object in front of a
separating plane. Reprinted
from [94] with permission
Fig. 3.52 Recording scheme
of a holographic image of a
part of an object behind a
separating plane. Reprinted
from [94] with permission
in its base of the upper part 4 of the cone with the image 5 1 of the upper surface of
the lower part 5 of the cone (Fig. 3.53).
The photoplate 6 bears a two-dimensional image of the same object. The
obtained holographic and two-dimensional images are combined. Besides, it is worth
mentioning that the hologram is illuminated with a variable intensity light beam at
the stage of reconstruction. Apart from the holographic image, a plane image of the
same object or other objects (one or several) is formed on its own substrate.
The plane image can be formed in any way, for example, in a photographic one. It
comes out directly from the objects or from its reconstructed holographic image with
further copying using the methods of projection or contact printing. Or it is formed
with other methods on different data carriers (substrates). If photoemulsions and
Précédent

- 304/543

Suivant