28-10-2014, 04:42 PM
Blu-ray, also known as Blu-ray disc (BD) is a next-generation optical disc format name. The name Blu-ray use blue-violet laser to read and write data, which was developed by the Blu-ray Disc Association. The name "blue" (blue-violet laser) and "Ray" (Ray) combination. Formats were developed to allow recording, rewriting and playback of high-definition video (HD).
It can accommodate up to 50GB and 25GB single layer discs double layer discs. It also has a 100GB double-sided storage capacity. It has a shorter wavelength 405nm and 0.85 numerical aperture. The format also supports HD audio formats and lossless audio. Storage capacity of Blu-ray disc than CD and HD DVD,PDD,DVD, write and read speed, laser optics and video timing better. The format offers six times more than double the storage capacity of traditional DVD and CD 35 times. Two recording layers is based on the fast-growing heap of material design. Blu-ray disc is in the cost per GB is the most cost-effective storage solution.
In our seminars, we give a definition, architecture, lasers and optical devices, and HD DVD and DVD, sustainable development, publication titles, advantage, disadvantage and Blu-ray disc information.