An electronics housing for a high voltage system of a vehicle defines an interior region, and includes a connection header wall having a window. In certain embodiments, the medical devices are at least partially manufactured using an admixture of a base polymer and surface modifying fluoropolymer additives. The centering elements are connected to each other by axially parallel links forming a centering cage that overlaps the clamping mechanism with axial play. A proximity sensing device measures deflection of the beam and generates an electrical signal which varies in response to deflection of the beam. This approach eliminates the vibration, audible noise, and safety problems associated with high speed rotating color filter wheels 203 commonly used in SLM projectors and controls the light applied to individual areas of the projection SLM. This invention discloses methods to test PC buildup using multiple wafers that are subjected to rotation, twist, tilt, and combinations thereof.