Apparatus for manufacturing optical information recording medium

An apparatus for manufacturing an optical information recording medium, comprising:

• a table on which is placed a stamper having formed thereon undulations corresponding to recording data;
• stamper fixing means for fixing said stamper at a central position of said table;
• a center pin set to be vertically movable in correspondence with a central portion of said stamper, a support base for placement and support of a light-transmitting disk substrate formed at a position close to an upper distal end thereof;
• driving means for vertically driving said center pin;
• resin setting means for setting on the surface of said stamper placed on said table a resin having a property of curing upon radiation of ultraviolet rays;
• an air path formed to open in the surface of said table, to allow air to be blown to the outer periphery of said center pin;
• and
• control means for controlling said driving means to move said center pin upward or downward.

An apparatus for manufacturing an optical information recording medium, comprising:

• a table on which is placed a stamper having formed thereon undulations corresponding to recording data;
• a support member, constituted by a vertically set cylinder, and having integral therewith, at an upper side thereof, a receiving base for supporting said table;
• a guide ring, set on said table, to surround a central axis portion of said table, and projecting to fit in an inner peripheral portion of said stamper placed on said table;
• a center pin, set to be vertically movable at a central axis portion of said support member, an upper distal end of said center pin projecting from the surface of said table, and a flange-like support base for placement and support of a disk substrate formed at a position close to the distal end portion;
• a valve member set between said center pin and said support member so as to be vertically movable;
• a valve body, formed at a distal end portion of said valve member corresponding to the surface of said table, and brought into contact with a valve seat formed at an inner periphery of said guide ring, thereby opening/closing a path communicating with a vacuum source;
• an air path, open in an upper end portion of said valve member, for allowing selective supplying of air from said air path;
• and
• control means for controlling movement of said center pin and an air amount to be supplied to said valve member, through said air path.