Method of and apparatus for curing an optical disc
AssigneeKitano Engineering Co., Ltd.
InventorsRyoko Kitano, Masami Inouchi, Masayuki Yoshida
Life of this patent
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Abstract
A method of and apparatus for curing an optical disc capable of efficiently curing ultraviolet curing resin serving as an adhesive between a pair of disc substrates. The apparatus includes a peripherally located ultraviolet irradiation unit disposed around a rotary holding table for irradiating ultraviolet from the peripheral surface of the optical disc toward the inner portion thereof so as to cure the ultraviolet curing resin, and/or a central irradiation unit disposed to irradiate ultraviolet from the central hole of the optical disc toward the outer portion thereof.
Claims19
An apparatus for curing an optical disc formed by bonding a first disc substrate and a second disc substrate with one another with an ultraviolet curing resin, said apparatus comprising:
- a base table;
- a holding table rotatably mounted on said base table for supporting the optical disc;
- a fastening member positioned above said base table;
- a plurality of separate peripheral ultraviolet irradiation units disposed about a periphery of said holding table for irradiating ultraviolet from a peripheral surface of the optical disc toward an inner portion thereof to cure the ultraviolet curing resin disposed between the first and second disc substrates, said peripheral irradiation units being clamped between said base table and said fastening member.
An apparatus for curing an optical disc formed by bonding a first disc substrate and a second disc substrate to one another with an ultraviolet curing resin, said apparatus comprising:
- a base table defining an opening therein;
- a holding table rotatably disposed within said opening of said base table for supporting the optical disc;
- a fastening member positioned above said base table;
- a plurality of peripheral ultraviolet irradiation units disposed around a periphery of said holding table for irradiating ultraviolet from a peripheral edge surface of the optical disc toward a portion thereof disposed inwardly of the peripheral edge to cure the ultraviolet curing resin, said fastening member being disposed to press said peripheral irradiation units from above against said base table;
- and
- a central ultraviolet irradiation unit disposed at a center of said holding table for irradiating ultraviolet from a central hole of the optical disc toward a portion thereof disposed outwardly of the central hole to cure the ultraviolet curing resin.
A method of curing an optical disc having first and second disc substrates which are bonded to one another by an ultraviolet curing resin, said method comprising the steps of:
- providing a rotatable holding table;
- providing a plurality of separate and independent peripheral ultraviolet irradiation units about a periphery of the holding table;
- positioning the optical disc on the holding table;
- rotating the holding table to rotate the optical disc;
- and
- irradiating ultraviolet from an outer peripheral surface of the optical disc toward an inner portion thereof disposed inwardly of the peripheral surface with the peripheral irradiation units during rotation of the optical disc to cure the ultraviolet curing resin disposed between the first and second disc substrates.
A method of curing an optical disc having first and second disc substrates which are bonded to one another by an ultraviolet curing resin disposed therebetween, said method comprising the steps of:
- providing a rotatable holding table;
- providing a plurality of distinct and independent peripheral ultraviolet irradiation units about a periphery of the holding table;
- providing a central ultraviolet irradiation unit adjacent a center of the holding table;
- positioning the optical disc on the holding table rotating the holding table to rotate the optical disc;
- and
- curing the ultraviolet curing resin during rotation of the optical disc by:
- irradiating ultraviolet from an outer peripheral surface of the optical disc toward an inner portion thereof with the peripheral irradiation units;
- and
- irradiating ultraviolet from a center of the optical disc toward an outer portion thereof with the central irradiation unit.
Dependencies are inferred from the claim text.