Method of manufacturing a die for press-molding optical elements
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsYoshinari Kashiwagi, Makoto Umetani, Hidenao Kataoka, Kenji Inoue, Shoji Nakamura, Satoru Morimoto
Life of this patent
Estimating the term…
Abstract
A die for press-molding glass optical elements which can press-mold glass optical elements having high melting points and various shapes repeatedly, which includes a base material having high strength on which a cutting layer having heat resistance and free cutting machinability is formed. After cutting the cutting layer into the desired shape with high accuracy, the die is coated with a surface protective film.
Claims10
A method of manufacturing a die for press-molding glass optical elements, comprising the steps of:
- (a) forming a base material having heat resistance and sufficient strength to press-mold glass optical elements into a shape similar to a desired shape;
- (b) forming a film comprising a P-alloy film containing P and one metal selected from the group consisting of Ni, Co, and Fe, and one metal selected from the group consisting of Si, Ti, Cu, Zr, Nb, Mo, Ru, Rh, Pd, Hf, Ta, W, Re, Os, and Ir, by means of at least one method selected from the group consisting of a electroless plating method, an evaporation method, a sputtering method, and an ion plating method only on top of said base material to form a cutting layer containing P;
- (c) cutting said cutting layer precisely to the desired shape;
- and
- (d) forming an alloy film containing at least one metal selected from the group consisting of Pt, Pd, Ir, Rh, Os, Ru, Re, W, and Ta only on top of said cutting layer.
A method of manufacturing a die for press-molding glass optical elements, comprising the steps of:
- (a) forming a base material having heat resistance and sufficient strength to press-mold glass optical elements into a shape similar to a desired shape;
- (b) forming a film comprising a B-alloy film containing B and one metal selected from the group consisting of Ni, Co, and Fe, and one metal selected from the group consisting of Si, Ti, Cu, Zr, Nb, Mo, Ru, Rh, Pd, Hf, Ta, W, Re, Os, and Ir by means of at least one method selected from the group consisting of a electroless plating method, an evaporation method, a sputtering method, and an ion plating method only on top of said base material to form a cutting layer containing B;
- cutting said cutting layer precisely to the desired shape;
- and
- (d) forming an alloy film containing at least one metal selected from the group consisting of Pt, Pd, Ir, Rh, Os, Ru, Re, W, and Ta only on top of said cutting layer.
A method of manufacturing a die for press-molding glass optical elements, comprising the steps of:
- (a) forming a base material having heat resistance and sufficient strength to press-mold glass optical elements into a shape similar to a desired shape:
- (b) forming a film comprising a Cu-alloy film containing 20 to 80 atom % of a metal selected from the group consisting of Ni, Co, Fe, Si, Ti, Zr, Nb, Mo, Ru, Rh, Pd, Hf, Ta, W, Re, Os, and Ir, by means of at least one method selected from the group consisting of an electroless plating method, an evaporation method, a sputtering method, and an ion plating method only on top of said base material to form a cutting layer containing Cu;
- (c) cutting said cutting layer precisely to the desired shape;
- and
- (d) forming an alloy film containing at least one metal selected from the group consisting of Pt, Pd, Ir, Rh, Os, Ru, Re, W, and Ta only on top of said cutting layer.
A method of manufacturing a die for press-molding glass optical elements, comprising the steps of:
- (a) forming a base material having heat resistance and sufficient strength to press-mold glass optical elements into a shape similar to a desired shape;
- (b) forming a film comprising a Si-alloy film containing 20 to 80 atom % of a metal selected from the group consisting of Ni, Co, Fe, Cu, Ti, Zr, Nb, Mo, Ru, Rh, Pd, Hf, Ta, W, Re, Os, and Ir, by means of at least one method selected from the group consisting of an electroless plating method, an evaporation method, a sputtering method, and an ion plating method only on top of said base material to form a cutting layer containing Si;
- (c) cutting said cutting layer precisely to the desired shape;
- and
- (d) forming an alloy film containing at least one metal selected from the group consisting of Pt, Pd, Ir, Rh, Os, Ru, Re, W, and Ta only on top of said cutting layer.
A method of manufacturing a die for press-molding glass optical elements, comprising the steps of:
- (a) forming a base material having heat resistance and sufficient strength to press-mold glass optical elements into a shape similar to a desired shape;
- (b) forming a film comprising an amorphous metallic alloy film comprising at least one metal selected from the group consisting of Ni, Co, Ta, Mo, Ti, W, Nb, V, Cu, and Al by means of at least one method selected from the group consisting of an electroless plating method, an evaporation method, a sputtering method, and an ion plating method only on top of said base material to form a cutting layer;
- (c) cutting said cutting layer precisely to the desired shape;
- and
- (d) forming an alloy film containing at least one metal selected from the group consisting of Pt, Pd, Ir, Rh, Os, Re, W, and Ta only on top of said cutting layer,
- wherein said cutting layer resists a forming temperature of 650.degree. C. or more.
Dependencies are inferred from the claim text.