US Patent 9574760 Light fixture with internally-loaded multilayer stack for pressure transfer

A submersible luminaire includes forward and aft housings that couple together. A transparent pressure-bearing window, a window support structure, a circuit element populated with LEDs, and a pressure support structure are mounted inside the forward housing. The support structures are configured to bear at least some of the pressure applied to the transparent window from external pressure sources. The support structures are further configured to transfer thermal energy to an exterior environment.