Shine On, You Crazy LED Bulb
Not only does this bulb design dissipate heat while achieving more omni-directional light, but the PCB is also a clever design element.
A board of unusual shape, made for a heat-dissipating LED bulb
LED bulbs need a heat-sink to dissipate thermal energy, which means that LEDs are usually positioned to shine in one direction. But what if you want a light bulb that shines out instead of just up for a more convincing bulb replacement?
This bulb was designed with PCBs in a blade- or fin-style to allow the mounted LEDs to shine out for a well-rounded effect. The PCB-LED mechanism was encased in a bulb that was filled with oil to keep the heat moving to the surface of the bulb, where it could dissipate.
The fins, bulbs, and liquid together managed heat distribution and electrical efficiency while keeping the light shining in all directions. The design made for an illuminating LED bulb that could step in for its older incandescent cousins and keep the lights on for many years to come.