Advancements in Moisture Resistant LED Lighting

A light-emitting device that has improved resistance to discoloration and sulfurization, and thus increased lumen maintenance and lifetime. The device contains a light-emitting element, a conductive member containing silver, and a sealing member that covers the element. The sealing member is made of a silicone composite containing zinc silanolate. The zinc silanolate improves the sealing member's resistance to discoloration and gas permeation compared to conventional silicones.

Source

A water-tight LED module design that eliminates the need for a separate gasket to seal the module against water ingress. The module uses a secondary lens array to cover the LEDs, and a lens holder that compresses the lens array against the module base plate to create a seal. The lens array has a peripheral lip that the holder's skirt compresses against the base plate surface. This provides a water tight seal around the LEDs and circuit board.

Source

A hermetically sealed LED light for use in medical instruments. The LED light has a housing that is at least liquid-tight. The housing includes a base with LEDs and a metal cap with windows. The cap is attached to the base to seal the LEDs inside. A coating is applied to the cap to enhance sealing. The cap is made of stainless steel with similar thermal expansion to the base material to prevent leaks.

Source

A lamp that can effectively discharge water or liquid that gets into the lamp housing and prevent sensitive electronic components from getting exposed to the outside when servicing the lamp. The lamp has a separate sealed lamp module that contains the electronics, which can be mounted and sealed into an outer case. The outer case has drainage channels to allow any moisture that gets inside to flow out. The separate module can be accessed by opening the rear cover of the outer case without exposing the electronics to the elements.

Source

LED light source module for plant growth applications that provides directional light, improved spectrum matching for photosynthesis, and waterproofing. The module has an LED board with multiple LEDs facing up or down, an optical reflector to redirect the light, a waterproof cover, and a pole with a power supply.

Source

Drainable lamp that allows water to exit the lamp, and protects internal components from exposure during maintenance. The lamp has an outer case with an inner space, a lamp module at one end of the case, a rear cover at the other end, and drainage channels connecting the ends. The lamp module is sealed and contains the electronics. The rear cover can be opened for maintenance without exposing the electronics. This separates the sealed lamp module from the outer case, allowing water to drain out the channels rather than contact the electronics.

Source

Water-tight LED module that uses a lens assembly to seal against water ingress without additional gaskets. The LED module has a base plate with an LED circuit board mounted on it. A secondary lens array is positioned over the LEDs. A lens holder mounts over the secondary lens array. The holder has apertures for the secondary lenses and compresses parts of the secondary lens array against the base plate to form seals. The secondary lens array has bosses that engage with the holder to create the seals. This provides water-tightness without needing separate gaskets.

Source

An underwater lamp with a specially designed housing that enables use in deep depths. The lamp has an electrical lighting device and connections enclosed in a translucent housing. The housing has a double curvature at each point which gives it strength to withstand high water pressure at great depths. The curved shell shape prevents the collapse of the housing when submerged deep underwater. The lamp can be used as a light bait for fishing.

Source

Lighting module with improved heat dissipation and water ingress prevention for LED lighting apparatus like streetlights. The module has a heat sink plate, LED board, and lens cover with a waterproof frame between them. The frame has projections that seal against the plate and lens. It also has gaps and projections on the plate sides for cooling airflow. This allows efficient heat dissipation while preventing water entry.

Source

An LED work lamp that heats up and melts ice and snow off the lamp cover to maintain visibility in cold weather conditions. The lamp has an electric heating glass cover that surrounds the LED board and lens. Electrodes on the glass connect to a temperature controller and the lamp circuit board. The controller activates the heater when it detects freezing temperatures.

Source

A light source with a reflector that also seals the light source. The reflector has reflective internal surfaces that direct light towards a light modifier. It also has channels to hold and seal the light modifier. The reflector seals the light source to keep out moisture while maximizing light output.

Source

LED module for channel letters that protects the electronic components from the elements. A molded plastic cover encloses the circuit board and leaves only the LED exposed. The cover has an opening on the bottom to connect to the channel. The cover seals the board from humidity while still allowing modular replacement. The channel has protrusions that contact the bottom opening to provide a heat path.

Source

A modular LED lighting system that can be retrofitted into existing fixtures and provides an easy, watertight twist-lock installation. The system includes a modular LED lamp that can be installed on an existing socket without tools. This lamp has a sealed housing with a drain to prevent water accumulation. The system also includes a twist-lock junction box and sub-assembly for wet locations. The modular components can be mixed and matched to upgrade lighting fixtures to use low-wattage LEDs in wet locations.

Source

Modular multi-panel LED display without cabinets to provide a lower cost, lighter weight and more robust replacement for large outdoor LED displays. The modular panels are interconnected directly without cabinets or enclosures, exposing the electronics to the environment. Heat sinks and passive cooling dissipate the heat. The panels have recessed components, sealed with potting, to protect against moisture. The panels interlock for a seamless display. The main panel has extra components like power supplies while slave panels are simpler.

Source

Modular LED lighting system for retrofitting existing fixtures in wet locations like barns. The system includes an LED lamp that can attach to standard sockets, a junction box that replaces the socket, and a twist-lock fixture body. The lamp has a sealed housing with a fan to prevent water buildup, drains to remove any water, and a socket adapter to connect to existing sockets.

Source