LED Lights for Underwater Use

摘要

A lighting unit (2) for marine or other underwater use has an array of LEDs (60, 62) mounted in groups (46) on a printed circuit board (6). A plastic injection moulded collimator is associated with a group of LEDs and a group of such collimators are provided in a single contiguous moulding which can also provide a cover (20) and means for mounting the lighting unit to a vessel and facilitates sealing of the unit.

主权项

1. A lighting unit for underwater use comprising; a base member supporting at least one LED, and a single moulded cover having an external face for direct contact with water and an internal face shaped to sealingly engage with the base member with the PCB therebetween, the internal face defining a recess which sits over the LED to provide a coaxial collimator for the LED using total internal reflection.