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...
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| creator | YONEMOTO TADATAKA HARUHARA MASAAKI NAKAMURA SHOJI SHIMIZU YOSHIYUKI SHIOYAMA TADAO KAWADA NORIYUKI |
| description | 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 material having desired weight. At temp. over the softening point, the glass material is shaped by cooling and pressing with a die 18. Further the contact surface of the heated bed 22 is left as a free surface. Thus, the obtd. glass material can be used for molding. |
| format | Patent |
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| subjects | CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GLASS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE |
| title | METHOD AND DEVICE FOR PRODUCTION OF GLASS MATERIAL |
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