3D Holographic Projection (ana)PPT-1.pptx

Holographic

1. 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 3D information of a Holographic subject.

2. Why Holographic Display. A high resolution three dimensional recording of an object. Glass free 3D display. No need for projection screen. Life like images. Interactive display.

3. Types of Holograms : 1.Reflex hologram : illuminated by a spot of white incandescent light source ,from front above. The image consist of light reflected by the hologram. Produces multicolor holograms , makes images optically indistinguishable from the original objects.

4. 2.Transmission hologram: Viewed with laser light , usually of the same type use to make recording. Need light source behind them Virtual image can be very sharp and deep.

5. 3.Computer generated holograms : No need for a real object. Interference pattern is calculated digitally, using algorithms.

6. Advance in technology: Touchable holograms. Tactile holographic display with hap tic feedback. Horizontal 360 degree view of a image on table top. User interfacing integrated display.

7. Application : Education application. Marketing with 3D holographic display. 3D simulations displays for scientific visualization Improved virtual reality and augmented reality. Telepresencing and video conferencing. Entertainment display. Military and space applications.

8. Holographic checkpoint for military battlefield simulations. Intense real gaming rooms. In future all display like televisions mobile phones displays projector display will be replaced by holographic display.

9. 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 phones screens to large projectors.

10. Reference: Gabor, Dennis (1948). "A new microscopic principle". Nature 161 : 777–8. Bibcode : 1948Natur.161..777G . doi : 10.1038/161777a0 . PMID   18860291 . Gabor, Dennis (1949). "Microscopy by reconstructed wavefronts". Proceedings of the Royal Society (London) 197 (1051): 454–487. Bibcode : 1949RSPSA.197..454G . doi : 10.1098/rspa.1949.0075 . "The Nobel Prize in Physics 1971" . Nobelprize.org. Retrieved 2012-04-21. Hariharan, (1996), Section 1.2, p4-5 Denisyuk, Yuri N. (1962). "On the reflection of optical properties of an object in a wave field of light scattered by it". Doklady Akademii Nauk SSSR 144 (6): 1275–1278. Leith, E.N.; Upatnieks, J. (1962). "Reconstructed wavefronts and communication theory". J. Opt. Soc. Am. 52 (10): 1123–1130. doi : 10.1364/JOSA.52.001123 . Upatniek J & Leaonard C., (1969), "Diffraction efficiency of bleached photographically recorded intereference patterns", Applied Optics, 8, p85-89.