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United States of America Patent
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Issued Date -
Jun 3, 2010
app pub date -
Jan 28, 2008
filing date -
Mar 2, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to an integrated mastering system and a method for manufacturing master discs for optical media. The system according to the invention comprises means for recording information on a master disc including means for applying a material layer to a master disc, a laser beam recorder for illuminating the material layer in a desired pattern based on the information to be recorded, means for developing the material layer, means for determining the quality of the developed layer based on measurement of a light beam diffracted by the pattern recorded on the master disc, and means for controlling the means for recording on the basis of the quality of the master disc. According to the method of the present invention, the quality of the developed layer of a master disc is determined and the mastering process settings of a subsequent master disc are controlled.
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