Friday, January 30, 2009

How Blu-ray Originated

By Marcus Stevenson

Presently, the available high definition medium is Blu-ray. Although the majority of the population is aware of this, they are not knowledgeable on the actual history.

Before high definition discs could be thought of, there had to be high definition. It was in 1998 that HDTVs became commercially available, but the market did not have any compatible products to go with the new TVs.

The problem was that available media could not hold enough data to accommodate the HD format. The solution was simple; use a different type of laser that would enable higher densities of data to be stored. The best way to do this would be with a blue laser, which had a shorter wavelength than current lasers on the market.

A man named Shuji Nakamura is credited with developing a blue laser for commercial use. Prior to his invention, the existing blue lasers were too big and expensive to be used practically. His invention of blue laser diodes facilitated the creation of HD DVD and Blu-ray.

After this invention, Sony and Philips started working together to create a medium which utilized the blue laser diodes. The original projects were known as Ultra Density Optical and DVR Blue. These were the prototypes to modern Blu-ray.

The prototypes were further developed and perfected until the beginning of 2002. It was then that the Blu-ray Disc Association was launched by less than ten initial members.

The introduction of Blu-ray may have been a bit premature, as it was two years later that the format actually was finished. Even then, it took one more year for everything to be complete.

All the work put in to Blu-ray paid off. The disc type is now the premier HD format, and Blu-ray sales are climbing continually. There is no telling what further innovations are impending, but they will surely be exciting. - 15634

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