FLIR Military manufacturer chose the Visual Communications Company (VCC) CMS 442 sealed lens for use in their heavy duty controller. The NEMA 4-rated CMS 442, available from Switches Plus Components , is a low profile, button-type lens that has a smooth, clean look with a convex surface protruding just above the panel. This design minimises the potential problems of snagging, interference, or physical damage that might result from outside sources such as clothing, jewellery and tools.
The threaded design makes for a quick and simple assembly to the front panel. With less than a full turn, the lens is tightly mounted to the panel using the included lock washer and retaining ring. The circuit board is completely independent of the display panel, simplifying its installation or removal for assembly or repair.
The CMS 442 lenses are also paired with VCC Litepipes and cable assemblies to meet all the needs. The lens is constructed of optical quality, U.L. Listed polycarbonate thermoplastic. It is offered in six colours including red, amber, green yellow, blue and water clear.
The CMS 442 and 462 lens assemblies have been designed to meet the needs of all indoor applications and have been successfully used in harsh environments. The units, with uniquely-designed spiral mating threads, provide a superior mounting system which has been tested by an independent laboratory and has exceeded all test criteria for NEMA 4 and beyond (water seal for depths down to 100m; shock up to 6Gs; vibration, shaken up to 6 Gs from 0 to 2000Hz; temperature cycling from -40°C to +105°C; UV resistance; dust sealing; as well as ice encasement).
The CMS 442 lens enhances the aesthetics of the display panel. The low-profile design increases the light output of the LED by significantly reducing the ambient light effect upon the lens. The lens can expand the viewing angle to 180° by the use of patented VCC diffusion ring technology. While the CMS 442 lens is used for 5mm LED applications, the CMS 462 lens provides a 10mm LED solution. These lenses are also paired with VCC Litepipes and cable assemblies to meet all types of needs.