Lens for lighting system

Stock material or miscellaneous articles – Composite – Of quartz or glass

Reexamination Certificate

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Details

C428S432000, C428S697000, C428S698000

Reexamination Certificate

active

07829191

ABSTRACT:
A lighting system that produces a high intensity beam of light in the visible and infrared spectral regions that can be used for non-covert and ultra-covert operations. The lighting system is comprised of a HID lamp, a reflector, a lens, and a filter. The lamp utilizes a short arc gap and a unique combination of xenon gas, mercury and metal halides that produce a highly collimated beam of light in the visible and near-infrared regions. The lens is coated on both sides with an antireflective coating that reflects ultraviolet light and enhances the transmission of visible and infrared light. The lens is also coated on its outer surface with a hydroscopic material that protects the glass lens and the second antireflective coating from abrasion while facilitating the dispersion of water on the outer surface.

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patent: 6761467 (2004-07-01), Matthews et al.
patent: 6984061 (2006-01-01), Soderberg et al.

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