US PATENT SUBCLASS 65 / 415
.~.~.~.~ Forming glass layers with graded or radially varying refractive index

Current as of: June, 1999
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65 /   HD   GLASS MANUFACTURING

376  DF  PROCESSES OF MANUFACTURING FIBERS, FILAMENTS, OR PREFORMS {18}
385  DF  .~ Process of manufacturing optical fibers, waveguides, or preforms thereof {29}
413  DF  .~.~ With step of vapor deposition {4}
414  DF  .~.~.~ Forming optical fiber or fiber preform by soot buildup (i.e., vapor axial deposition, VAD) {2}
415.~.~.~.~ Forming glass layers with graded or radially varying refractive index

DEFINITION

Classification: 65/415

Forming glass layers with graded or radially varying refractive index:

(under subclass 414) Processes wherein therefractive index of (a) each layer of glass formed varies or (b) the preform varies radially outward.

SEE OR SEARCH CLASS

385, Optical Waveguides,

124, for graded index core or cladding, per se.