Rivian patents heated headlight lenses

Modern LED headlights have a problem: They’re bright, compact, and energy-efficient, but they don’t generate as much heat as HID or halogen lights. That means they’re more likely to accumulate a coating of snow, ice, or moisture that can disrupt illumination. Rivian appears to be working on a solution.

In a patent application filed with the United States Patent and Trademark Office (USPTO), Rivian lays out a design for heated LED headlight lenses. That document was filed by Rivian on Jun. 21, 2023, but only published by the USPTO on Dec. 26, 2024.

Rivian’s design relies on a layer of carbon nanotube material—so named because it’s compromised of tube-shaped lattices of carbon atoms less than a nanometer in diameter—added to the outer lens of a headlight. Carbon nanotubes are known to have good thermal conductivity, which might be the reason behind Rivian’s choice of this material.

This layer would be surrounded by a silver bus-bar heating element. Current is run through the heating element which in turn heats up the carbon nanotube layer and melts any snow, ice, or other moisture sticking to the headlight.

Many patented ideas fail to reach production, but Rivian might not have to deal with the regulatory hurdles that previously blocked the latest headlight tech in the U.S. The NHTSA in 2022 finally approved the use of modern matrix headlights after nearly a decade of petitioning from automaker. It’s unclear how the safety regulator will react to Rivian’s integral heating elements, but this does at least show a willingness to revisit archaic lighting regulations.

Rivian itself received a $5.8 billion investment from Volkswagen, as well as conditional approval of a $6.6 billion loan from the federal government for its Georgia factory, which is scheduled to open in 2028.