Abstract: A lamp burner having a quartz body comprising a light emitting chamber intermediate a pair of end portions. A filament may be positioned within the light emitting chamber and a multilayer optical coating provided on at least a portion of the body. The coating may comprise a plurality of layers of a first material comprising silica, a plurality of layers of a second material comprising rutile titanium dioxide, and a plurality of layers of a third material having an index of refraction intermediate the indices of refraction of the layers of first material and the layers of second material.

Abstract: A halogen incandescent burner comprising a quartz body comprising a light emitting chamber, a filament positioned within the light emitting chamber, and a multilayer optical coating on at least a portion of the chamber. The coating may include a plurality of layers of a low refractive index material and a high refractive index material having a total thickness of at least nine microns, wherein the gain of the burner is at least 1.7. The high refractive index material may comprise tantala and the low refractive index material may comprise silica.

Abstract: A method for producing pigment flakes in the shape of thin plates. A chamber is provided which is placed under vacuum and a gas, which is capable of forming a plasma upon its exposure to a plasma generating device, was fed to the interior of the chamber device. The plasma is created within the chamber which forms a film upon a surface within the chamber. The film is converted to flakes which are then removed from the interior of the chamber.