3.4 Holographic Research Methods in Biology and Medicine
283
40,000 signs were produced). The main idea was that a photolithographic image with
the Olympic symbols was put on a plane substrate.
A three-dimensional image of the Olympic symbols was recorded on the holographic plate. Then the hologram was put on the substrate with the photolithographic
image so that the contours of these images matched each other. Then, the emulsion
layer was brought for protection from holographic damages. And the observer was
located from the side of the light source relative to this multilayer structure and
observed the 3D and the plane image or both simultaneously depending on the light
conditions. The observer identified the distance between the light source and the
angle of turn of the multilayer structure himself by turning it till most bright and
accurate images appear.
Another example of practical implementation of this method is a biochromed
gelatin watch. The perception effect is intensified through the usage of a hologram
with the help of which memorable dates, events can be depicted. In this sample, it is
the date of the 25th anniversary from the day of launching the first spaceship with
the man on board. In the same time, the hologram served as protective glass. In the
watch the effect is used, which can be described by changing the perceived color
of the face under different illumination conditions. The face is seen under normal
illumination. Under direct light from a slide projector or the sun, a 3D image of a
spaceship with bás-relief of Y. Gagarin appears on the face. The developed image
forming method is practically feasible and was implemented into serial production by
L.V. Tanin. In 1986, Minsk Watch Plant for the first time introduced several thousands
of mini alarm-clocks, which realize the image forming methods using combined 3D
and plane images. The clocks are very reliable, compact, serve as alarm, have small
weight and can be used in road conditions.
Especially for serial production of these clocks S.B. Shevchenko, M.K. Shevtsov
and other workers of the State Optical Institute named after S.I. Vavilov developed
a technology of obtaining high-performance biochrome gelatin layers, which were
then used to cover glass substrates.
Besides, a polymer-registering medium is used to enhance efficiency of holographic images recording [287]. But it should be mentioned that the author pays
special attention to studying the possibilities of different schemes of hologram
recording and copying while implementing the idea stipulated in patents “The image
forming methods” [278–287]. Among them, the work by Sh.D. Kakichashvili can be
pointed out, which uses conic glass body of revolution with polished faces as a source
of reference beams during circular holographing [288, 289] (see Fig. 3.55). Besides,
the interference copying method should be mentioned, which was suggested by V.A.
Vanin. It is used during copying of any type of a hologram, but for the Lippman–
Denisyuk’s holograms it is the only possible method. Interference copies have all
the characteristics as the original one. In this case, the original hologram is made
according to the scheme with an inclined reference beam. The scheme of recording
is presented in Fig. 3.56. It should be mentioned that recording was conducted with
four-sided illumination [290, 291], and the scheme of hologram copies obtaining is
presented in Fig. 3.57 [290–295].
283
40,000 signs were produced). The main idea was that a photolithographic image with
the Olympic symbols was put on a plane substrate.
A three-dimensional image of the Olympic symbols was recorded on the holographic plate. Then the hologram was put on the substrate with the photolithographic
image so that the contours of these images matched each other. Then, the emulsion
layer was brought for protection from holographic damages. And the observer was
located from the side of the light source relative to this multilayer structure and
observed the 3D and the plane image or both simultaneously depending on the light
conditions. The observer identified the distance between the light source and the
angle of turn of the multilayer structure himself by turning it till most bright and
accurate images appear.
Another example of practical implementation of this method is a biochromed
gelatin watch. The perception effect is intensified through the usage of a hologram
with the help of which memorable dates, events can be depicted. In this sample, it is
the date of the 25th anniversary from the day of launching the first spaceship with
the man on board. In the same time, the hologram served as protective glass. In the
watch the effect is used, which can be described by changing the perceived color
of the face under different illumination conditions. The face is seen under normal
illumination. Under direct light from a slide projector or the sun, a 3D image of a
spaceship with bás-relief of Y. Gagarin appears on the face. The developed image
forming method is practically feasible and was implemented into serial production by
L.V. Tanin. In 1986, Minsk Watch Plant for the first time introduced several thousands
of mini alarm-clocks, which realize the image forming methods using combined 3D
and plane images. The clocks are very reliable, compact, serve as alarm, have small
weight and can be used in road conditions.
Especially for serial production of these clocks S.B. Shevchenko, M.K. Shevtsov
and other workers of the State Optical Institute named after S.I. Vavilov developed
a technology of obtaining high-performance biochrome gelatin layers, which were
then used to cover glass substrates.
Besides, a polymer-registering medium is used to enhance efficiency of holographic images recording [287]. But it should be mentioned that the author pays
special attention to studying the possibilities of different schemes of hologram
recording and copying while implementing the idea stipulated in patents “The image
forming methods” [278–287]. Among them, the work by Sh.D. Kakichashvili can be
pointed out, which uses conic glass body of revolution with polished faces as a source
of reference beams during circular holographing [288, 289] (see Fig. 3.55). Besides,
the interference copying method should be mentioned, which was suggested by V.A.
Vanin. It is used during copying of any type of a hologram, but for the Lippman–
Denisyuk’s holograms it is the only possible method. Interference copies have all
the characteristics as the original one. In this case, the original hologram is made
according to the scheme with an inclined reference beam. The scheme of recording
is presented in Fig. 3.56. It should be mentioned that recording was conducted with
four-sided illumination [290, 291], and the scheme of hologram copies obtaining is
presented in Fig. 3.57 [290–295].