BLU - RAY TECHNOLOGY

1. BLU-RAY TECHNOLOGY
By
XXXXX
(12XXXXXX)
ECE
Guide:
XXXXXX, XXXX
Associate Professor

2. 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

3. 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

4. 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".

5. CD vs DVD vs BD Capacity

6. CD vs DVD vs BD Recording

7. 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

8. FORMATS
Blu-ray is initially designed in several different
formats:
• BD-ROM
• BD-R
• BD-RW
• BD-RE

9. Comparison of BD and DVD

10. APPLICATINOS
• High definition television recording
• High definition video distribution
• Mass data storage

11. 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.

12. 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.

13. 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,

14. REFERENCES
• www.Blu-ray.com
• en.wikipedia.org
• www.Blu-raydisc.com

15. Thank you..!

16. QUAIRES..?