BLU-RAY TECHNOLOGY

By

XXXXX(12XXXXXX)

ECE

Guide:

XXXXXX, XXXXAssociate Professor

INTRODUCTION

• The standards for 12-cm optical discs, CDs, DVDs,

and Blu-ray rewritable discs

• The recording capacity required by applications was

the important issue when these standards were

decided

• To record in the same fashion for an HDTV broadcast

WHAT IS A BLU-RAY DISC..?

• Blu-ray disc is a next-generation optical disc format

jointly developed by a group of leading consumer

electronics and PC companies called the Blu-ray Disc

Association

• Because it uses blue lasers, which have shorter

wavelengths than traditional red lasers

WHY THE NAME BLU-RAY..?

• The name Blu-ray is derived from the underlying

technology, which utilizes a blue violet laser to read

and write data.

• The name is a combination of "Blue" and optical ray

"Ray".

CD vs DVD vs BD Capacity

CD vs DVD vs BD Recording

Blu-ray Disc Cross Section

• TDK is to introduce hard-coating technologies that would enable bare disk handling, along with higher-speed recording heads and multi-layer recording technology

FORMATS

Blu-ray is initially designed in several differentformats:

• BD-ROM • BD-R• BD-RW • BD-RE

Comparison of BD and DVD

APPLICATINOS

• High definition television recording

• High definition video distribution

• Mass data storage

ADVANTAGES

• The Blu-ray disc overcomes DVD-reading issues by

placing the data on top of a 1.1-mm-thick

polycarbonate layer.

• Because the data is closer to the surface, a hard

coating is placed on the outside of the disc to protect

it from scratches and fingerprints.

DISADVANTAGES

• In a DVD, the data is sandwiched between two

polycarbonate layers, each 0.6-mm thick.

• All of these issues lead to a very involved

manufacturing process.

CONCLUSION

• Today consumers are searching for faster

transfer speeds and large storage capacity.

• The advantages of BD are the capacity of

reaching the far-field recording limit, large

tolerance in processing,

REFERENCES

• www.Blu-ray.com

• en.wikipedia.org

• www.Blu-raydisc.com

Thank you..!

QUAIRES..?