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Method and apparatus for producing cover layers in Blu-ray discs
Method and apparatus for producing cover layers in Blu-ray discs
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机译:在蓝光盘中产生覆盖层的方法和设备
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摘要
Techniques for a cover layer with uniform thickness are disclosed. The cover layer is formed with a type of material, such as glue, in hardened form. In one embodiment, a certain amount of the material in liquid form is dispensed onto a dispensing structure. After the dispensing structure is engaged to hold a disc, the dispensing structure and the disc as a whole unit to be rotated at a predefined speed. The dispensed material on the dispensing structure is dispersed evenly onto the surface of the disc as result of the centrifugal force. A curing process (e.g., using UV lighting) is then engaged to harden the material near the edge of the disc to prevent the dispersed material from shrinking.
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