Patent ID: 9687875
Date: 2017-06-27
CPC Classifications: B05D,C03C

Claim:
1. An apparatus for curing a coated glass fiber, comprising: a substantially closed, substantially cylindrical cavity having a substantially elliptical cross-section and a reflective inner surface, said cavity defining a first line focus, a second line focus, and a major axis intersecting the first line focus and the second line focus, the second line focus defining a curing axis; a protective tube that is substantially transparent to ultraviolet (UV) radiation, said protective tube surrounding the curing axis; and an ultraviolet light emitting diode (UVLED) source positioned within said cavity at the first line focus, wherein said UVLED source is configured to have (i) a substantially Lambertian emission pattern that defines a line of average emission Lavg and (ii) an emission angle a between the major axis and Lavg defined by the following equation: where r 2f is the distance between the first line focus and the second line focus, and θ