JVC Develops Mastering System for HD Blu Ray Discs
August 17, 2004
Las Vegas, NV - Victor Company of Japan, Ltd. (JVC) has developed a proprietary “Extended Deep Ultraviolet Mastering System” (provisional name) that manufactures read-only Blu-ray master discs known as BD-ROM for the same cost as DVD master discs. BD-ROM and Blu-ray discs store over 2 hours of High-Definition video.
JVC’s new system records this master optical disc. It shines a laser beam corresponding to the formatted content signal on a spinning glass disc coated with photoresist made of photosensitive polymer resin. This optically activates the photoresist to create a small pit or depression that stores
the signal.
In the DVD mass replication process, the glass master is what stampers are in turn made from. The final stamped disc is what is standard in any retail DVD software or music product.
Until now, manufacturing high-capacity BD-ROM glass masters required an expensive electron beam system with a beam finer than a laser beam, as well as special optics and photoresist material created in a vacuum, the company reports.
The manufacturing cost of BD-ROM master discs was therefore significantly higher than DVD master discs.
JVC’s newly developed Extended Deep Ultraviolet Mastering System uses a deep ultraviolet laser beam to manufacture BD-ROM masters with just a small modification to a conventional DVD master recording system which uses blue violet to ultraviolet rays. For this reason it produces BD-ROM master discs for the same cost as DVD master discs.
JVC anticipates the spread of BD-ROM mass production systems using this system.
For more information, visit
www.jvc.com
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