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Data Recovery InformationBlu-Ray set to take the earth by storm!
by:
Paul Colbert
The Blu-ray Disc belongs to a new generation of optical discs capable of staging high density data. Blu-Ray technology is based on a blue-violet coloured laser. The blue optical maser operates at a wave length of 405 nm, piece older technology such as DVDs and CDs are based on red and infrared lasers that works at 650 and 780 nm. Since the wave length is shorter with a blue laser, the new Blu-ray technology does is possible to store more much information
The advantage with the Blu-ray technology is that the optical maser beam can be focused more much tightly at the surface of the disc. Tight focus means that a smaller spot wish be make on the surface on the disc, and once
the spots become smaller there wish naturally be room for more information on each disc. The minimum spot size of any optical maser depends on a naturally accruing development
called diffraction. The narrow beam of light sent out from a optical maser wish always diverge into a wider beam eventually, due to the natural optical development
of waves. Optical development
wish besides occur the waves meet an obstruction. By reducing the wavelength of a laser, we can affect the diffraction.
In Blu-ray technology, the diffractions is besides affected by the fact that the lens used to focus the light has a higher numerical aperture than the lenses found in ordinary DVDs - 0.85 instead of 0.6. Blu-ray technology based appliances are besides equipped with a dual-lens system of supreme quality, and the cover layer has been ready-made dilutant in order to prevent unwanted optical effects. All this does it possible for a Blu-ray optical maser to focus on more smaller spots. The optical improvements are attended
with a new know-how
for encryption data which does it possible to store even as more data on the Blu-ray disc.
The standard for Blu-ray technology has been developed as a joint venture between some major manufacturers of PCs and user
electronics, including Sony and Philips. The group is called the Blu-ray Disc Association (BDA). The 1st Blu-ray recorder was launched in Japan in 2003, by Sony. Today, Samsung, JVC, Matsushita (Panasonic) and LG Physics are all examples of companies exploitation Blu-ray technology in their products. Hewlett Packard has proclaimed that they wish release desktop PCs equipped with Blu-ray technology in late 2005.
The main rival for the Blu-ray technology is the HD DVD format which is besides capable of storing more information than a normal DVD. The Blu-ray technology does however allow for more information per layer than the HD DVD format – 25 GB compared to 15 GB. The Blu-ray technology wish on the another hand most likely be more big-ticket to support, at least initially, which can do the HD DVD a tempting alternative. In a Blu-ray disc, the data is keep extremely close to the surface. This ready-made the 1st Blu-ray discs extremely vulnerable to scratching and galore users preferred the tougher HD DVD discs. Since 2004, all Blu-ray discs are coated with a clean compound called “Durabis” which does them more much durable. According to the developers of Durabis, the TDK Corporation, a coated Blu-ray disc wish activity even as after being attacked with a screwdriver.
Just about the author:
Paul Colbert butter of http://www.blu-ray-world.comis an author of various articles relating to new technology and innovations. All content may be used freely but may not be altered in anyway without prior written consent by webcashflow LLC and a link back to Blu-Ray-World.com must be given.
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