Holography (from the Greek, whole + write) is the science of producing holograms. It is an advanced form of photography that allows an image to be recorded in three dimensions.It involves the use of a laser, interference, and diffraction, light intensity recording and suitable illumination of the recording.

1. 3D Holographic Projection
Technology
PAWAR ROHIT C.
EC ECE
1OX12EC418
GUIDED BY: BHARGAVA R.

2. What is Holography
 Holography (from the Greek, whole + write) is the science of
producing holograms.
 It is an advanced form of photography that allows an image to be
recorded in three dimensions.
 It involves the use of a laser, interference, diffraction, light intensity
recording and suitable illumination of the recording.
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3. History
DENNIS GABOR - FATHER OF HOLOGRAPHY AND
HOLOGRAPHIC TECHNOLOGIES
DENNIS WROTE A PAPER IN 1948
THAT HAS BECOME THE FOUNDATION
OF MODERN HOLOGRAPHY.
THE MOST INTERESTING THING ABOUT ALL THIS IS
THAT LASER LIGHT HAD NOT EVEN BEEN INVENTED
YET, WHEN HE WROTE HIS PAPER.

4. Property of Hologram
If you look at these holograms from different
angles, you see objects from different
perspectives, just like you would if you were
looking at a real object.
 If you cut in half each half contains whole
views of the entire holographic image.
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5. Problem statement
3 D Technology
 Rainbow Artifacts
 The term "3D" is currently a limited
viewing experience.
 3D glasses required.
 Need projection display.
 Seems to be 2D.
 Separate audio system.
Holography Technology
 Images seem to float in front of
you.
 Glasses free 3D display
 No need for projection screen
 Life like images
 Interactive display
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6. Types of
Holograms
A. Reflex hologram
Illuminated by a spot of white
light source, from front-
above.
The image consists of light
reflected by the hologram.
Produces multicolor
holograms, makes images
optically indistinguishable
from the original objects.
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7. B.Transmission hologram
 Viewed with laser light, usually of
the same type used to make the
recording
 Need light source behind them
 Virtual image can be very sharp
and deep
C.Computer-generated holograms
 No need for a real object
 Interference pattern is calculated
digitally, using algorithms
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8. How holograms works
 When the two laser beams reach the recording medium, their light waves
intersect and interfere with each other. It is this interference pattern that is
imprinted on the recording medium.
Hologram
Recording
Hologram
Recondtruction
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9. Recording
of data
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10. Reconstruction of hologram
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11. Capturing &
Projecting of
video PROJECTION
OF
HOLOGRAPH
VEDIO
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 By replacing the conventional
holographic plate with a digital
camera and an optoelectronic 2D
screen, we can capture and display
holographic video.
 Video hologram is coded into light
modulators
 These light modulators are
illuminated by coherent light beam
source, to project video.

12. Projection of multicolor holographic
video
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13. Advances in
technology Touchable holograms
Adjustable holographic
display
Horizontal 360º view of a
image on table top
User interfacing integrated
displays
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14. Applications
& Future scope  Educational applications
 Marketing with 3D holographic
display
 Improved virtual Reality and
augmented reality
 Telepresence and video conferencing
 Entertainment displays
 Military and Space Applications
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15.  Holographic checkpoint for military, battlefield
simulations.
 Intense real gaming rooms.
 In future all displays like televisions, mobile phone
displays, projector displays will be replaced by holographic
displays.
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16. Projected cost of Holographic
system
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17. Conclusion
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 Holographic Technology has endless applications as far as
the human mind can imagine.
 Replacing all present displays in all sizes, from small
phone screen to large projectors.
 Holographic Technologies are used for business
communication, safety , security , education .
 Holographic Technology will became a very integral part
of human societies and civilizations in the future.

18. • “Holographic Projection Technology: The World is Changing.”; Ahmed
JOURNAL OF TELECOMMUNICATIONS, VOLUME 2, ISSUE 2, MAY 2010
• “Capture, processing, and display of real-world 3D objects using
digital holography”; Thomas J. Naughton; 2010 IEEE Invited Paper
• “Touchable Holography”;
The University of Tokyo; 2009
• “Holographic 3-D Displays - Electro-holography within the Grasp of
Commercialization”; Stephan Reichelt, Ralf Haussler, Norbert Leister,
Gerald Futterer, Hagen Stolle and Armin Schwerdtner (2010)
• “How Holograms Work.”; Wilson, Tracy V. 2010.“ HowStuffWorks, Inc.
Downloaded November 05, 2010.
<http://science.howstuffworks.com/hologram.html>
References 18
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19. Thank you
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