METHOD AND DEVICE FOR PRODUCTION OF GLASS MATERIAL

PURPOSE:To provide a method and device for production of a glass material by which a glass material having a similar shape to the shape of an optical element for a molded lens at low cost with a short tact. CONSTITUTION:Molten glass 17 is made to flow through the flow port 12 to prepare a glass mate...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YONEMOTO TADATAKA, HARUHARA MASAAKI, NAKAMURA SHOJI, SHIMIZU YOSHIYUKI, SHIOYAMA TADAO, KAWADA NORIYUKI
Format: Patent
Sprache:eng
Schlagworte:
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