"Apparatus For Optical Disc Spin Coating"

Abstract: Provided is an apparatus for optical disc spin coating including: a cap that has an inner surface separated from an upper surface of an optical disc, an outer surface having a horizontal central portion and extending to the optical disc, an edge that are slanted in a radial direction, and a circumference portion having a radial width of 0.2 to 3 mm; and a turntable that has an optical disc support, which supports the optical disc, a central axis capable of being inserted into a central hole of the optical disc, and a vacuum hole to fix the cap and is formed in the central axis. An optical disc having a central portion which is not contaminated by a photocurable resin and at which bubbles are not generated can be manufactured using the apparatus of the present invention. When a cap and a central axis of a turntable of the apparatus have a protruding portion and a recess, respectively, and the protruding portion and the recess can be coupled to each other in a convexo-concave structure, the cap can be easily installed. In addition, when the apparatus further include a vacuum hole formed in the turntable, which can be opened and closed independently from the opening and closing of a vacuum hole formed in the central axis of the turntable, the lifting of the optical disc when the cap is removed can be prevented. As a result, operability and the manufacturing efficiency of the apparatus can be increased significantly.

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