3D Holographic Projection Technology Seminar

8/10/2019 3D Holographic Projection Technology Seminar

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3D Holographic

Projection TechnologyNITES

S

ROL


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Contents What is Holograph

Why Holography Types of Hologram

How Holograms w

Recording of holo

Reconstruction of

Advances in tech

Applications & Fu

Conclusion


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What is holography

Holography is a technique that allows scattered from an object to be recorded reconstructed.

The technique to optically store, retrieve, andinformation.

Preserve the 3-D information of a holosubject


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Why

holographic

displayA high resolutio

dimensional record

object

Glasses free 3D displ

No need for projecti

Life like images

Interactive display


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Timeline of holography


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Types of

HologramsA. Reflex hologram

Illuminated by

white incande

source, from fron

The image con

reflected by the

Produces holograms, ma

optically indist

from the origina


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B.Transmission hologram

Viewed with laser lof the same typmake the recording

Need light source b

Virtual image can

sharp and deepC.Computer-generated ho No need for a real o Interference pa

calculated digitaalgorithms


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Howholograms

workThe time-varying ligof a scene with all its properties is to be reand then regenerateHence the wor

holography is dividtwo phases:

Recording

Reconstruction


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Recordingof hologram Basic tools requ

make a hincludes a red

lenses, beam mirrors and holofilm

Holograms are rin darker environm


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Laser : Red lasers, usually helium-neon (He-Ne

common in holography. These are coherent ligh

Beam splitter: This is a device that uses mirrors a

split laser beam of light into two beams.

Object beam (directed onto the object) and

Reference beam (travels directly onto the

medium)


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Mirrors: These direct the beams of light to the

locations

Holographic film: Holographic film can record

a very high resolution, which is necessary for c

a hologram. It's a layer of light-sensitive com

on a transparent surface, like photograph

Eg : Silver Halide Emulsion


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Recording a hologram


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Process

When the two laser beams reach the rec

medium, their light waves intersect and interfe

each other. It is this interference pattern

imprinted on the recording medium.

HologramRecording

HologramReconstruction


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Reconstructionof hologram

The photographis illuminatedoriginal light sou

for recording ho


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Reconstructing a hologram


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Projection ofholographic

video Video hologram into light modulato

These light modulilluminated by

light beam souproject video


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Advances in

technology Touchable hologrTactile holog

display with feedback

Horizontal 360 vie

image on table toUser inte

integrated display


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Applications& Future scope

Educational applica

Marketing with 3D

display

3D simulation dscientific visualizatio

Improved virtual

augmented reality Telepresence a

conferencing

Entertainment displa

Military and Space


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Holographic c

for military, bsimulations

Intense real

rooms

In future all dis

televisions, mobdisplays,

displays will be

by holographic d


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Projected cost of Holographicsystem


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Conclusion Holographic T

and Spectral Imaendless applicat

as the human

imagine

In future, h

displays will be all present dispsizes, from sm

screen to large p

R f


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Holographic Projection Technology: The World is Ahmed Elmorshidy,

JOURNAL OF TELECOMMUNICATIONS, VOLUME 2, ISSUE 2, Capture, processing, and display of real-world 3D ob

digital holography; Thomas J. Naughton; 2010 IEEE Inv

Touchable Holography; Takayuki The University of Tokyo; 2009

Holographic 3-D Displays - Electro-holography within thCommercialization; Stephan Reichelt, Ralf Haussler, NoGerald Futterer, Hagen Stolle and Armin Schwerdtner (20

How Holograms Work.; Wilson, Tracy V. 2010.HowStuDownloaded November 05,

References


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Thank you


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Questions?

Documents

3D Holographic Projection Technology Seminar