SHASHANKPPT

8/7/2019 SHASHANKPPT

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A Presentation

On

Fluorescent Multi-Layer Disc

Guided By Presented By

Dr .L Basavaraj Shashank R

H.O.D Dept. E&C VVCE 4vv07ec045

Vidyavardhaka college of engineering

Mysore, Dept. of E&C


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WHAT IS FMD?

Fluorescent Multilayer disc is a new technologydeveloped by Constellation 3D Inc.

It stores digital data in three dimensions.

It is a readable and re-writable disc.

It is an optical data storage disc, similar in size to

CD-ROMs And DVDs.


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NEED OF FMD? Increased disc Capacity

Quick parallel access and retrieval information.

Media tolerances.

Usage Flexibility.


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OPERATING PRINCIPLE

The FMDs are works on the phenomenon ofPHOTOCHROMISM.

The selection of fluorescent material.

Obtain fluorescent properties.

Simulation and Emission.

Filteration and Finish.


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Model of FMDs


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TECHNOLOGICAL PROCESS OF

MANUFACTURE

HOT STAMPING:-

y Pressing of sheets.

y Formation of layer.

y Filling the pits.

y Pressing of informational layers.


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FMD RECORDING

Technology Used:-WORM(Write Once Read Many)

Two Rules to be followed while

recording.

1. The write laser should able to

turn the fluorescence on or off

2. Threshold power of laser for

recording and less power for

reading


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FMD READ DEVICE

Reading process is carried out with

the help of a photosensitive

element. Device can read low-power

fluorescense of 10 MHz.

Reading speed upto 1GB/sec.

Mechanical speed of the derive is

450 times lower than that of DVD.


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CD-ROM Vs FMD


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COMPRASION OF DISC LAYERS


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PARAMETERPARAMETER

SS CDCD DVDDVD FMDFMD

1.Disc Diameter1.Disc Diameter 1.2mm1.2mm 1.2mm1.2mm 1.2mm1.2mm

2.Capacity2.Capacity 750MB750MB 4GB4GB 50GB+50GB+

3.Wavelength3.Wavelength 780nm780nm 650nm650nm

480480--

530nm530nm

4. Distance b/w4. Distance b/w

TracksTracks 1.6micron1.6micron 0.85micron0.85micron

0.80micr0.80micr

onon

5.No.of layers5.No.of layers 11 22 1212

CD vs DVD vs FMD


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y Data warehouses.

y E-commerce related data mining.

y Storage of very high detailed archive

of maps.

y PVR (Priya Village Roadshow),HDTV.

y Ability to store a large amount of data

in uncompressed format.

APPLICATIONS


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ADVANTAGES

y Prevents problem of interference since it uses anincoherent fluorescent light.

yCompatible with CD and DVD formats with more

storage area and faster access.

y Fluorescent technology do not require special

manufacturing conditions.

yCost of production of FMD is relatively cheap.

y It consists multiple data layers, Capacity of each

data layer is 4.7 GB


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REFERENCES

y www.en.wikipedia.org/wiki.

y www.seminartopic.org.

y www.edu.five.org


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CONCLUSION

y Mans need for additional storage space is increasing .

y The FMD Digital Cinema disc has the potential toprovide a secure, removable, single disc distribution

method.

y The FMD can provide us with a staggering 140 GB of

storage space seems to be an enticing solution for the

storage- hungry masses.


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Thank You

SHASHANKPPT

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