Laser Gold plating can be applied with remarkable uniformity across surfaces as large a 1-meter in diameter. Because it is electrolytically deposited, Laser Gold can exhibit high current density “runout” but special tooling and years of experience permit Epner Technology to eliminate the effect of this phenomenon. Because Laser Gold plating is not line-of-sight dependent, it can thus coat the inside of lightpipes or other deep cavities with parallel walls.