Abstract: A tie-down tension enhancer for in-situ tightening of an installed tie down having a locking mechanism. The tension enhancer generally includes a body having openings for transverse insertion and removal of a line or strap as well as longitudinal movement of the line or strap within the body. A cinch is provided and disposed on the body for engaging the line or strap upon longitudinal movement of the line or strap in one direction and a line or strap mechanism is provided and spaced apart from the cinch for enabling pulling of the line or strap past the cinch for providing further tension to the existing tie down.

Abstract: A tie-down tension enhancer for in-situ tightening of an installed tie down having a locking mechanism. The tension enhancer generally includes a body having openings for transverse insertion and removal of a line or strap as well as longitudinal movement of the line or strap within the body. A cinch is provided and disposed on the body for engaging the line or strap upon longitudinal movement of the line or strap in one direction and a line or strap mechanism is provided and spaced apart from the cinch for enabling pulling of the line or strap past the cinch for providing further tension to the existing tie down.

Abstract: Optical interference coatings useful on lamps for transmitting visible light radiation at about 90% average from 400-770 nm and for reflecting infrared radiation comprise three spectrally adjacent multiperiod stacks of alternating high and low index of refraction layers. Compared to conventional filters, these filters have a greater tolerance to layer thickness variations incurred during manufacture with little or no color shift when viewed at non-normal angles.

Abstract: Fused quartz containing europium oxide, titanium dioxide and cerium oxide has been found to be effective for absorbing UV radiation while transmitting visible light radiation. Uses for this material include lamp envelopes and shrouds for halogen-incandescent lamps and metal halide arc discharge lamps which emit both UV and visible light radiation.

Abstract: The subject invention, therefore, relates to a multi-layer coating for use on a thick-walled metal halide lamp which emits visible light radiation and absorbs and reflects UV radiation, and which further manages the thermal non-uniformity problems across the thickness of the arc tube to substantially eliminate devitrification problems.

Abstract: Fused quartz containing both titanium dioxide and cerium oxide as UV absorbing dopants has been found to be particularly effective for lamp envelopes for high temperature lamps such as halogen-incandescent lamps and metal halide arc discharge lamps which emit both UV and visible light radiation. The codoped quartz transmits visible radiation and absorbs a substantial portion of the emitted UV radiation. The UV absorption is far superior at temperatures above 500.degree. C. and the codoped quartz does not react with the fill within.

Abstract: An all glass reflector having a front reflecting surface and terminating in the rear in a cavity into which a lamp is cemented transmits substantially less light out of the rear when at least the inside or the outside of the cavity and the reflecting surface are coated with an optical interference coating. The coating is applied by a low pressure chemical vapor deposition process.

Abstract: Optical interference coatings useful on lamps for transmitting visible light radiation at about 90% average from 400-770 nm and for reflecting infrared radiation comprise three spectrally adjacent multiperiod stacks of alternating high and low index of refraction layers. Compared to conventional filters, these filters have a greater tolerance to layer thickness variations incurred during manufacture with little or no color shift when viewed at non-normal angles.

Abstract: In a high intensity metal halide discharge lamp, means are provided associated with the interior surface of the envelope to promote the formation and spreading of a liquid film of condensate thereon. Such a film can lower the color temperature as a result of pressure broadening and self-reversal of the sodium line, and also by acting as a color correcting filter. The film-promoting means may be a coating which imparts an irregularity to the surface such that the reduction in exposed surface area by coverage with a uniform liquid film is energetically favored. Alternatively, a chemically different surface better wetted by the metal halide dose may be used.