1. 3D HOLOGRAPHICPROJECTION
TECHNOLOGY

2. Contents
• What is Holography
• Why Holography
• Types of Holograms
• How Holograms work
• Recording of hologram
• Reconstruction of hologram
• Advances in technology
• Applications & Future scope
• Conclusion
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3. What is holography
 Holography is a technique that allows the light scattered
from an object to be recorded and later reconstructed.
 The technique to optically store, retrieve, and process
information.
 Preserve the 3-D information of a holographed subject
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4. Why
holographic
display
 A high resolution three
dimensional recording of an
object
 Glasses free 3D display
 No need for projection screen
 Life like images
 Interactive display
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5. Types of
Holograms
A. Reflex hologram
B. Transmission hologram
C. Computer-generated
holograms
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6. How
holograms
work
The time-varying light field of
a scene with all its physical
properties is to be recorded and
then regenerated.
 Hence the working of
holography is divided into two
phases:
•Recording
•Reconstruction
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7. Recording of hologram 7
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8. Recording a hologram 8
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9. Process
 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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10. Reconstruction of hologram
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11. Reconstructing a hologram 11
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12. Capturing of holographic video
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13. Projection of holographic video
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14. Advances in
technology Touchable holograms
Tactile holographic display
with haptic feedback
Horizontal 360º view of a
image on table top
User interfacing integrated
displays
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15. Applications
& Future scope
 Educational applications
 Marketing with 3D holographic
display
 3D simulation displays for
scientific visualization
 Improved virtual Reality and
augmented reality
 Telepresence and video
conferencing
 Entertainment displays
 Military and Space Applications
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16.  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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17. Conclusion  Holographic Technology and
Spectral Imagining has
endless applications, as far
as the human mind can
imagine
 In future, holographic displays
will be replacing all present
displays in all sizes, from
small phone screen to large
projectors
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18. THANK YOU
PPT
BY
Madugula saikumar
ECE
AITAM
ANYQUERIES???
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