METHOD FOR MANUFACTURING LENS WITH MULTI-REFRACTION

The present invention relates to a method for manufacturing lens with a multi-refractive index. The method comprises the steps of: heating raw materials which are formed of glass as a main material and changing a phase in a state in which liquid and solid coexist from the outer surface of the raw ma...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KIM, JEONG HO, HONG, HEE SONG, LIM, JU YOUNG, LIM, JUNG WOON, JEONG, JAE CHEOL, HANN, S WOOK, CHA, DU HWAN, KIM, JENG GHO
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS
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Beschreibung
Zusammenfassung:	The present invention relates to a method for manufacturing lens with a multi-refractive index. The method comprises the steps of: heating raw materials which are formed of glass as a main material and changing a phase in a state in which liquid and solid coexist from the outer surface of the raw material in a predetermined depth; adding impurities to the outer surface of the phase-changed raw material and forming a heterorefractive index which has a refractive index different from the refractive index of the raw material; and cooling the raw material to which the impurities are added. [Reference numerals] (AA) Heating;(S0) Step of preparing raw materials;(S1) Step of changing a phase;(S2) Step of forming a heterorefractive layer by adding impurities;(S3) Step of pressing and annealing;(S4) Step of cooling