18122013071108 3d holographic projection technology

8/13/2019 18122013071108 3d Holographic Projection Technology

1/24

3D Holographic

Projection Technology

SANYA

RRR ROLL NO. -


2/24

Contents What is Holograph

Why Holography Types of Hologram

How Holograms w

Recording of holo

Reconstruction of

Advances in tech

Applications & Fu

Conclusion


3/24

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


4/24

Why

holographic

displayA high resolutio

dimensional record

object

Glasses free 3D displ

No need for projecti

Life like images

Interactive display


5/24

Timeline of holography


6/24

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


7/24

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 digita

algorithms


8/24

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


9/24

Recordingof hologram Basic tools requ

make a hincludes a red

lenses, beam mirrors and holofilm

Holograms are rin darker environm


10/24

Recording a hologram


11/24

Laser : Red lasers, usually helium-neon (HeNe

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)


12/24

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


13/24

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

HologramRecondtruction


14/24


15/24

Reconstructionof hologram

The photographis illuminatedoriginal light sou

for recording ho


16/24

Reconstructing a hologram


17/24

Capturing ofholographic

video By replacingconventionalholographic p

a digital came

optoelectronic

screen, wecapture an

holographic vid


18/24

Projection ofholographic

video Video hologram into light modulato

These light modulilluminated by

light beam souproject video


19/24

Projection of multicolour holographicvideo


20/24

Advances in

technology Touchable hologrTactile holog

display with feedback

Horizontal 360 vie

image on table toUser inte

integrated display


21/24

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


22/24

Holographic c

for military, bsimulations

Intense real

rooms

In future all dis

televisions, mobdisplays,

displays will be

by holographic d


23/24

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


24/24

Thank you

18122013071108 3d holographic projection technology

Documents