(19)
(11) EP 1 621 315 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 158(3) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
26.04.2006 Bulletin 2006/17

(43) Date of publication:
01.02.2006 Bulletin 2006/05

(21) Application number: 04728948.3

(22) Date of filing: 22.04.2004
(51) International Patent Classification (IPC): 
B29C 45/17(1985.01)
 B29L 11/00(1985.01)
(86) International application number:
PCT/JP2004/005800
(87) International publication number:
WO 2004/096521 (11.11.2004 Gazette 2004/46)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

(30) Priority: 25.04.2003 JP 2003121232

(71) Applicants:
  • HOYA CORPORATION
    Shinjuku-ku, Tokyo 161-8525 (JP)
  • IDEMITSU KOSAN CO., LTD.
    Tokyo 100-8321 (JP)

(72) Inventors:
  • SAITO, Kiyohiro
    Shinjuku-ku, Tokyo 1618525 (JP)
  • INOUE, Kazuo
    Shinjuku-ku, Tokyo 1618525 (JP)
  • SATO, Atsushi
    Ichihara-shi, Chiba 2990107 (JP)
  • MINOOKA, Hiroyoshi
    Ichihara-shi, Chiba 2990107 (JP)

(74) Representative: Gille Hrabal Struck Neidlein Prop Roos 
Patentanwälte Brucknerstrasse 20
40593 Düsseldorf
40593 Düsseldorf (DE)

   


(54) MOLDING METHOD AND MOLDING DEVICE UTILIZING ULTRASONIC VIBRATION AND OPTICAL LENS


(57) A molding method is provided which can further improve transferability and further reduce strain and which is suitable for molding of a product with high accuracy and high quality.
The molding method in which a resin material is filled into a cavity formed in a mold and pressurized to mold a product in a predetermined shape, and the method comprises: preparing the mold having a product cavity to mold the product made of a resin, a dummy cavity to mold a dummy product, and a runner by which the product cavity and the dummy cavity are connected; filling the resin material into the product cavity and supplying the resin material to at least part of the dummy cavity; and applying ultrasonic vibration to the resin material in the dummy cavity at predetermined timing.