Abstract: Casings and housings for use in high speed airflow (for example for mounting on a high speed vehicle) are described. In one embodiment, a housing for imaging equipment is described. The housing has a tapering form with symmetrical angular truncations such that it tapers in the form of a wedge with two substantially planar regions. At least one substantially planar region includes an aperture formed of optically transparent material.

Abstract: Casings and housings for use in high speed airflow (for example for mounting on a high speed vehicle) are described. In one embodiment, a housing for imaging equipment is described. The housing has a tapering form with symmetrical angular truncations such that it tapers in the form of a wedge with two substantially planar regions. At least one substantially planar region includes an aperture formed of optically transparent material.

Abstract: A lighting system including modules containing LEDs or other electroluminescent devices and loosely constrained magnetic structures at least partially contained within cavities in the module substrate that are connected to fixtures under magnetic force. The loosely constrained magnetic structures accommodate mechanical variations in the system and provide a method to connect modules mechanically, electrically and thermally to different fixtures or positions in fixtures without tools. The relatively short distance separating magnetic structures provides high connection forces with the use of relatively small magnets. Magnets and electrical contacts are not located directly between the LED subassembly and the fixture, which provides higher thermal conductivity pathways to remove heat from the LEDs. Biasing members may be used to increase thermal contact. Magnetic structures may, but are not required, to conduct electricity.