METHOD FOR MANUFACTURING OPTICAL ELEMENT

PROBLEM TO BE SOLVED: To obtain an optical element having no projection or burr by preventing a softened glass raw material from intruding into a gap between a convex part and a flat part continuing therefrom of a lower die. SOLUTION: The method for manufacturing an optical element includes the step...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	NAKATANI NORIO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY GLASS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS
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