OPTICAL GLASS ELEMENT FORMING DIE

PROBLEM TO BE SOLVED: To provide an optical glass forming die excellent in a degree of asphericity and capable of mass-producing optical glass elements of the order of several tens of thousands by using the same molding die in order to inexpensively provide small-sized high-accuracy optical glass el...

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Bibliographische Detailangaben
1. Verfasser:	ICHIJIMA MASAHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	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 OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an optical glass forming die excellent in a degree of asphericity and capable of mass-producing optical glass elements of the order of several tens of thousands by using the same molding die in order to inexpensively provide small-sized high-accuracy optical glass elements used in e.g. high-pixel cameras. SOLUTION: The forming die for an optical glass element such as an aspherical glass lens is constituted from an Si-SiC composite material obtained by impregnating an SiC base material of a bulk density of 3.12 g/cm3or lower with molten Si. COPYRIGHT: (C)2007,JPO&INPIT