METHOD AND APPARATUS FOR MOLDING WHICH UTILIZE ULTRASONIC VIBRATION, AND OPTICAL LENS

PROBLEM TO BE SOLVED: To provide a molding method which enables further improvement of transferability and further reduction of distortion and is optimum for molding a product of high precision/high quality. SOLUTION: In the molding method of filling a resin material in a cavity formed in a mold, ap...

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Bibliographische Detailangaben
Hauptverfasser:	MINOOKA TAKAYOSHI, INOUE KAZUO, SATO JUN, SAITO KIYOHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a molding method which enables further improvement of transferability and further reduction of distortion and is optimum for molding a product of high precision/high quality. SOLUTION: In the molding method of filling a resin material in a cavity formed in a mold, applying pressure thereto and thereby molding a product in a prescribed shape, the mold having a product cavity for molding the product of resin, a dummy cavity for molding a dummy product and a runner for connecting the product cavity and the dummy cavity in communication is prepared. The resin material is filled in the product cavity, while the material is supplied to at least a part of the dummy cavity, and ultrasonic vibrations are given at a prescribed timing to the resin material in the dummy cavity. COPYRIGHT: (C)2005,JPO&NCIPI