Resin molding apparatus and resin molding method
AssigneeSharp Kabushiki Kaisha
InventorsTakahiro Nakahashi, Hiroyuki Hanato
Life of this patent
Estimating the term…
Abstract
A lens molding apparatus (100) of the present invention includes: a mold (1) having a transfer surface (1a) for transferring a predetermined lens shape to a resin material; a mold (2) having a transfer surface (2a) for transferring a predetermined lens shape to the resin material; a support device (3) for moving the mold (1); a heating device (4) curing the resin material so as to form a lens, the resin material having been supplied between the transfer surface (1a) and the transfer surface (2a); and an ultrasonic vibrator (5) applying vibration from a side surface of the mold (1 or 2) so as to form a gap at least at a part between the transfer surface (1a or 2a) and the lens.
Claims20
A resin molding apparatus comprising:
- a first mold having a first transfer surface for transferring a predetermined shape to a resin material;
- a second mold having a second transfer surface for transferring a predetermined shape to the resin material, the second transfer surface being opposed to the first transfer surface;
- moving means that shifts a relative position of the first mold and the second mold;
- curing means that cures the resin material so as to form a resin molded product, the resin material having been supplied between the first transfer surface and the second transfer surface;
- first vibration applying means that applies vibration from a side surface of the first mold so as to form a gap at least at a part between the first transfer surface and the resin molded product;
- wherein the resin molded product is one or more lenses;
- wherein the one or more lenses has an optical surface and a non-optical surface formed on an outer periphery of the optical surface;
- and
- wherein the gap is formed at least at a part between the non-optical surface and a surface in contact with the non-optical surface but no gap is formed between the optical surface and a surface in contact with the optical surface.
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A resin molding method comprising the steps of:
- (a) curing a resin material so as to form a resin molded product, the resin material having been supplied between a first transfer surface of a first mold and a second transfer surface of a second mold;
- (b) separating the first transfer surface from the resin molded product;
- (c) removing the resin molded product from the second mold;
- and
- (d) applying vibration from a side surface of the first mold between the steps (a) and (b) so as to form a gap at least at a part between the first transfer surface and the resin molded product;
- applying vibration from a side surface of the second mold between the steps (b) and (c) so as to form a gap at least at a part between the second transfer surface and the resin molded product.
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A resin molding method comprising the steps of:
- (a) curing a resin material so as to form a resin molded product, the resin material having been supplied between a first transfer surface of a first mold and a second transfer surface of a second mold;
- (b) separating the first transfer surface from the resin molded product;
- (c) removing the resin molded product from the second mold;
- and
- (d) applying vibration from a side surface of the first mold between the steps (a) and (b) so as to form a gap at least at a part between the first transfer surface and the resin molded product;
- wherein the resin molded product comprises one or more lenses;
- wherein the one or more lenses has an optical surface and a non-optical surface formed on an outer periphery of the optical surface;
- and
- wherein the gap is formed at least at a part between the non-optical surface and a surface in contact with the non-optical surface but no gap is formed between the optical surface and a surface in contact with the optical surface.
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Dependencies are inferred from the claim text.