Abstract: A submersible LED illumination system may include an array of LEDs, with a first portion of the LEDs capable of emitting white light and a second portion of the LEDs capable of emitting light of a single color. The system may further include a plurality of reflectors surrounding a corresponding one of the LEDs, where a first portion of the reflectors may be configured to provide a far field relatively narrow beam of illumination and a second portion of the reflectors may be configured to provide a near field relatively wide beam of illumination. A housing may enclose the array of LEDs and the reflectors. A transparent window may be disposed in the housing, an an optically clear material may be disposed between the LEDs, reflectors, and transparent window.

Abstract: An LED lighting fixture includes a metal core printed circuit board (MCPCB) having a rear side and a front side. At least one LED is mounted to the front side of the MCPCB. A transparent window is mounted and sealed to the front side of the MCPCB to enclose the LED. A portion of the MCPCB extends from the transparent window so that it can be in heat exchange contact with water when the window of the lighting fixture is submerged in water.

Abstract: A deep submersible light includes a body defining a hollow interior and a solid state light source such as a plurality of high brightness LEDs mounted in the interior of the body. A transparent window is mounted over the LEDs. The space between the transparent window and the LEDs is filled with an optically transparent fluid, gel, or grease, which allows light to pass through and ambient water pressure to pass in, thus pressure compensating the LEDs by allowing them to see ambient water pressure. The transparent window is mounted in the body for reciprocation in both a forward direction and a rearward direction to accommodate volumetric changes in the compensating fluid, gel, or grease caused by changes in temperature and water pressure as the manned or remotely piloted submarine travels from the sea surface to deep ocean depths.

Abstract: A generally funnel-shaped main light body has a socket assembly mounted therein for supporting a lamp inside a rear neck portion thereof. A dome-shaped lens extends across a front flared portion of the main light body. A water-tight seal is provided between a periphery of the lens and the flared portion of the main light body. A reflector is mounted inside the flared portion of the main light body.