Tesla receives patent to replace windshield wipers with laser beams
- ByManjeet Singh | September 24, 2021
Tesla filed for a patent with the US Patent and Trademark Office (USPTO) in mid-2019, and now after almost two years, it has finally secured the patent rights. Tesla had also described lasers as a product that would remove debris from cars by replacing windshield wipers. According to Tesla’s official description, the cleaning system includes a laser beam optics assembly that emits a laser beam to illuminate a region on the vehicle’s glass, debris detection circuitry that detects debris on the glass, and a control circuit.
According to the patent, the laser beams would act as “A cleaning apparatus for a vehicle, comprising: a beam optics assembly configured to produce photons to irradiate a region on a glass article that is installed in the vehicle.” It is titled “Pulsed laser cleaning of debris accumulated on glass articles in vehicles and photovoltaic assemblies.”
What Tesla actually intends to do and how it will be done can be understood from the application it filed for the patent which is-
“A cleaning system for a vehicle includes a beam optics assembly that emits a laser beam to irradiate a region on a glass article of the vehicle, debris detection circuitry that detects debris accumulated over the region, and control circuitry. The control circuitry calibrates a set of parameters associated with the laser beam emitted from the beam optics assembly based on detection of the debris accumulated over the region on the glass article, controls an exposure level of the laser beam on the debris accumulated based on calibration of the set of parameters associated with the laser beam, wherein the exposure level is controlled based on pulsing the laser beam at a calibrated rate that limits penetration of the laser beam to a depth that is less than a thickness of the glass article and removes the debris accumulated over the region on the glass article using the laser beam.”
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