METHOD AND DEVICE FOR MOLDING OPTICAL PART

PURPOSE:To transfer easily and with high accuracy an optical mirror face of a cavity even when resin is shrinked by generating pressure in resin injected in a process of either injecting curable resin into the cavity, or curing the resin. CONSTITUTION:Prior to injecting energy hardening resin 3, a m...

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Bibliographische Detailangaben
Hauptverfasser:	FUKUSHIMA AKIRA, OTANI WATARU
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 PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE 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:	PURPOSE:To transfer easily and with high accuracy an optical mirror face of a cavity even when resin is shrinked by generating pressure in resin injected in a process of either injecting curable resin into the cavity, or curing the resin. CONSTITUTION:Prior to injecting energy hardening resin 3, a mold 1 is faced a mold 2 and clamped by a mold clamping device 6 to form a cavity 7. The mold clamping force is set in a manner of not opening the molds 1 and 2 against the pressure of resin 3 to be generated. Then the resin 3 is injected into the cavity 7 through a resin feed passage 8 communicated with the cavity 7 by an energy curable resin injection device 4. The resin 3 is injected by the amount, in which cure shrinkage is already taken into consideration to generate the pressure in the injected resin 3. An optical mirror face can be transferred efficiently by the arrangement.