Blu-ray Disc Player

The Blu-ray disc player is an optical disc player capable of playing Blu-ray discs, specifically designed to replicate high quality video images than standard DVD images – which is why it has proven to be the ultimate successor to the DVD player as opposed to the HD DVD.  On February 19, 2008, the Blu-Ray players became the eventual high-definition descendant to the standard DVD format when Toshiba, creator of the HD DVD technology proclaimed it would stop manufacturing all HD DVD players and products.

The main functions of Blu-ray disc Players are to read those BR-Discs, which store data such as first-class video quality images and PlayStation 3 video games with a maximum of 25 GB per single layered and 50 GB in each dual layered disc. These numbers are the standard protocol for storage methods in Blu-Ray drives, however there are no adamant boundaries to specification as upper theoretical storage limit can be subjected to choose with 200 GB discs already available and 100 GB discs readable without the help of extra gear or customized firmware. These discs are known to be constructed in the same physical dimensions as typical DVDs and CDs.

The name, Blu-ray originates from the Blue Ray Disc player’s ability to read and write data onto the disc using a blue-violet laser. This Blue-ray laser of the Blue-ray disc player heightens the capacity of storage ten times more then standard data storage aptitude in a DVD as it is known to use the laser at a shorter wavelength, a 405 nm blue-violet laser then an ordinary DVD and CDs where both use 650 nanometer and 780 nanometer red lasers respectively. The blue, technically violet laser is made up of diodes known as InGaN (Indium Gallium Nitride) that produce the 405 nm photons directly without causing any incidences concerning further frequency outcomes or implementing other nonlinear optical systems. This blue-violet laser expands the capacity of storage on 12cm disc which is a CD or DVD size due to its shorter wavelength. The minimum length to which a laser induce its wavelengths highly depend upon diffraction limitations, wavelength of the light and the statistical aperture hole size of the lens which generates the focusing. More information can be stored if the wavelength is made shorter which can be created by decreasing its length of laser onset by enlarging the aperture lens size from 0.60 to 0.85 in order to make the cover layer thinner to steer clear of unnecessary optical consequences so that laser beam can be focused to a smaller spot. The ultimate spot size is 580 nm in a Blu-ray disc.

In addition to the capacity enlargement feature, Blu-ray discs are also constructed with hard-coating technology in order to prevent scratches on the discs which would foil it from playing. Since the data layer is closer to the surface of the disc then the normal DVD layer, it is more vulnerable to scratches which are the reason why TDK was the first company to introduce the idea of scratch-protection coating on the pickup surface for Blu-ray discs known as Durabis.

After the format war of highly defined optical discs finally ended between Blu-ray player and Toshiba’s HD DVD player, 2009 presented the statement of Toshiba’s own preparations to manufacture and construct its own line of Blu-ray Disc devices by the end of the year.

This top-notch equipment was expanded by a group of manufacturers known as the Blu-ray Disc Association who are originally known to produce consumer electronics, computer hardware, and motion pictures. The end of 2009 showed the increase and expansion of Blu-Ray discs availability with more than 1,500 Blu-ray discs available in Australia, 2,500 in Japan, 1,500 in the United Kingdom and 2,500 in the United States and Canada.

Blu-ray technology has efficiently arrived and this medium of playing back video images is becoming highly popular due to the many advantages it provides over early models such as the DVD player.

This Blu-ray Disc Player Review is Written/Updated on Apr 9th, 2011 and filed under Consumer Electronics. Both comments and pings are currently closed.

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