Method of making halogen doped optical element
AssigneeCorning Incorporated
InventorsSteven Bruce Dawes, Douglas Hull Jennings, Pushkar Tandon
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Abstract
A method of forming an optical element is provided. The method includes producing silica-based soot particles using chemical vapor deposition, the silica-based soot particles having an average particle size of between about 0.05 μm and about 0.25 μm. The method also includes forming a soot compact from the silica-based soot particles and doping the soot compact with a halogen in a closed system by contacting the silica-based soot compact with a halogencontaining gas in the closed system at a temperature of less than about 1200° C.
Claims32
A method of forming an optical element, the method comprising:
- producing silica-based soot particles using chemical vapor deposition, the silica-based soot particles having an average particle size of between about 0.05 μm and about 0.25 μm;
- forming a soot compact from the silica-based soot particles;
- and
- doping the soot compact with a halogen in a closed system by contacting the silica-based soot compact with a halogen-containing gas in the closed system at a temperature of less than about 1200° C.
A method of forming an optical element, the method comprising:
- producing silica-based soot particles using chemical vapor deposition, the silica-based soot particles having an average particle size of between about 0.05 μm and about 0.25 μm;
- forming a soot compact from the silica-based soot particles;
- doping the soot compact with a halogen in a closed system by contacting the soot compact with a halogen-containing gas in the closed system at a temperature of less than about 1200° C.;
- and
- consolidating the soot compact in the closed system to form a glass article by simultaneously increasing the temperature in the closed system and decreasing the concentration of the halogen-containing gas in the closed system.
Dependencies are inferred from the claim text.