Abstract: A blackbody radiometric reference comprising a source plate or a target plate, metallic nanoparticles or other high emissivity coating disposed on the plate, and an intermediate coating such as paint. The plate may comprise copper, aluminum or composites thereof. Apparatus capable of functioning as a radiometric or thermometric reference. A pre-heater or weakly-coupled area may be disposed around or adjacent a highly thermally uniform area. A groove or perforations extending into a front surface of the source plate defining a weakly-coupled edge portion surrounding a thermally-controlled, optically-active area, and connected by bridges or structures thereto. An external probe may be located near the source plate for measuring ambient temperature, for compensating for ambient temperature or for radiative load on the blackbody.

Abstract: A blackbody radiometric reference comprising a source plate or a target plate, metallic nanoparticles or other high emissivity coating disposed on the plate, and an intermediate coating such as paint. The plate may comprise copper, aluminum or composites thereof. Apparatus capable of functioning as a radiometric or thermometric reference. A pre-heater or weakly-coupled area may be disposed around or adjacent a highly thermally uniform area. A groove or perforations extending into a front surface of the source plate defining a weakly-coupled edge portion surrounding a thermally-controlled, optically-active area, and connected by bridges or structures thereto. An external probe may be located near the source plate for measuring ambient temperature, for compensating for ambient temperature or for radiative load on the blackbody.

Abstract: A sighting assembly comprising a housing having a first portion and a second portion has mounted within the first portion thereof a laser rangefinder comprising a laser transceiver for transmitting a laser beam toward a target and for receiving a reflected laser beam from the target. The laser rangefinder is coupled to a display for indicating the distance to the target. Mounted within the second portion of the housing is a sight for viewing the target. The sighting assembly further includes at least one attachment on the housing for securing the assembly to a weapon.