Nevada Patent of the Month – April 2023
The energy-efficient and long-lasting LED lights have revolutionized the lighting industry, and Quarkstar LLC has taken it a step further with their latest invention – the Solid State Lamp. This innovative lamp is designed to replace standard incandescent bulbs and overcome the drawbacks of prior art solid-state lamps.
Quarkstar’s Solid State Lamp has a bulb-shaped design and is equipped with an array of flexible LED strips that encapsulate low-power bare LED dies. These strips are thin, allowing heat to be transferred through their surface to the ambient air, preventing overheating. The strips are spaced apart from each other, exposing the bulb to ambient air, which enables efficient cooling. The bulb is made of clear plastic or metal mesh with openings for air circulation within the bulb. The strips can be bent to accommodate any form factor, such as an A-shape bulb.
Using unpackaged LED dies in the strips and connecting the dies in series through traces in the strips reduces the cost per LED by 90%, making it a highly cost-effective solution. By driving the LEDs at lower localized current density, it is also possible to significantly enhance the overall efficacy of the LED by as much as 30%, delivering significant energy savings compared to the large LED chip type lamps that are in the market.
The Solid State Lamp offers several advantages over traditional LED lamps. It produces a more uniform and spherical light emission pattern, similar to incandescent bulbs. This characteristic is highly desirable since existing luminaires are often adapted to spherical light emission patterns. Moreover, it uses standard electrical connectors and supply voltages, making it a versatile lighting solution.
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