holography

1. HOLOGRAPHY
BY
J.B.ANU SELVAMATHI
ECE
feb4,2015

2. What is holography
 It allows the light scattered from an object to be
recorded and later reconstructed.
 It is advanced form of photography
 The image is recorded in three dimension..

3. Why holography
 Glasses free 3d display
 No need for projection screen.
 Life like images.
 Interactive display.
 High resolution 3
dimensional recording

4. History
 Dennis Gabor-father of holography.
 Dennis wrote a paper in 1947 .
 The most interesting thing about all this is that
laser light had not even been invented
yet,when he wrote his paper.
 He received noble prize in physics in 1971.

6. Time line of holography
 1947:dennis gabor _theory of holography.
 1960:pulsed ruby laser
 1962:white light reflection hologram.
 1983:master card.
 2009:interactive holographic.
 2010:moving 3d hologram.

7. Types of hologram
 Reflex hologram
 Transmission hologram
 Computer generated holograms.

8. How hologram works
 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

11. Gaming

12. Space

13. Military

14. Virtual realitity

15. Marketing

16. Entertainment display

17. `
Future scope

20. WORDS OF THE DAY
 Fay - strange
 Arcane - secret
 Whodunnit - a story/play about detection
of crime.
 Hap - luck/chance.