Abstract: A firing apparatus includes a light generating device for emitting a modulated light beam that includes information regarding the firing apparatus upon triggering in a direction toward a target. Lens optics is positioned in a path of the modulated light beam including a one dimensional lens for beam shaping the modulated light beam to provide a shaped modulated beam including a low divergence horizontal beam portion and a vertically elongated beam portion. A combat training system includes a head mounted apparatus including at least one photodetector affixed. The vertically elongated beam portion allows the light beam generated by the firing apparatus to be aimed at the torso of the target and be detected by photodetectors that are exclusively on the helmet.

Abstract: A firing apparatus includes a light generating device for emitting a modulated light beam that includes information regarding the firing apparatus upon triggering in a direction toward a target. Lens optics is positioned in a path of the modulated light beam including a one dimensional lens for beam shaping the modulated light beam to provide a shaped modulated beam including a low divergence horizontal beam portion and a vertically elongated beam portion. A combat training system includes a head mounted apparatus including at least one photodetector affixed. The vertically elongated beam portion allows the light beam generated by the firing apparatus to be aimed at the torso of the target and be detected by photodetectors that are exclusively on the helmet.

Abstract: A pathogen detector has a sample area for containing environmental air, a light source on one side of the sample area for directing a collimated beam of light through the sample air so that part of the light beam will be scattered by any particles present in the air while the remainder remains unscattered, and a beam blocking device on the opposite side of the sample area for blocking at least the unscattered portion of the beam of light and directing at least part of the scattered light onto a detector. The detector produces output pulses in which each pulse has a height proportional to particle size and a pulse height discriminator obtains the size distribution of airborne particles detected in the air sample at a given time from the detector output. An alarm signal is activated if the number of particles within a predetermined pathogen size range of around 1 to 7 ?m exceeds a predetermined normal level.

Abstract: An apparatus and method of fabricating an tubular reflector for use in a laser. The tubular reflector is formed by first grinding smooth the inside surface of a round metal tube. The polished tube is inserted into an elliptical mold. The mold is then pressed to shape the round tube into an elliptical tube. Next the inner wall of the tube is coated with a highly reflective material. Finally, a light source and a laser rod are positioned in the tube such that after the light source is turned on, light is reflected off the reflective walls of the tube to the laser rod resulting in laser light emitting from the ends of the rod. It may also be preferable that the elliptical tube be formed by combining and bending two flat metal sheets.

Abstract: A miscomparison between a channel's configuration data base and a voted system configuration data base in a redundant channel system having identically operating, frame synchronous channels triggers autoequalization of the channel's historical signal data bases in a hierarchical, chronological manner with that of a correctly operating channel. After equalization, symmetrization of the channel's configuration data base with that of the system permits upgrading of the previously degraded channel to full redundancy. An externally provided equalization command, e.g., manually actuated, can also trigger equalization.