Tuesday, August 4, 2020

Apple files a patent for its future gadgets to use ultraviolet light to stay clean

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Updated:02/08/2020 01:50h

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The United States Patent Office (USPTO) has granted Apple a series of patent applications presented by the Apple company for which certain types of sensors in a Apple Watch or iPhone can use their own system cleaning using ultraviolet light.

Apple describes two methods that could deploy ozone, generated by ultraviolet light, that would aim to erode and decompose “unwanted organic compounds” within the device.

“Many mobile electronic devices have sensors that enable devices to perform many more functions than communications,” says one of the documents titled “Elimination of organic pollution by oxidation with ozone for the integration of the environmental sensor». In another document, the US company that focuses the method on ultraviolet light says the same thing. Both methods ensure that “measuring heart rate, blood pressure, and the level of oxygen in the blood are among the many applications” that the devices can use, according to the specialized media “Appleinsider”.

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The company indicates that the phones can also “be equipped with environmental sensors, such as pressure, humidity and gas sensors.” However, Apple has indicated that the devices are prone to accumulate organic residues, such as skin oils, dirt or body hair and «these accumulations can contaminate the device housing and / or the sensor packaging which can produce interference signals and lead to increased sensor errors over a long period of time. ‘

For this reason, the company proposes a system “to decompose organic contaminants inside the product casing or near the sensor packaging to restore the clean environment necessary to achieve Accurate readings from integrated environmental sensors », by using ultraviolet light to “illuminate contaminants.”

“Ultraviolet light rays can initiate a photo-oxidation process that results in the decomposition of squalene,” a oily organic compound which can adhere to the surface of the housing or sensor packaging. “By reacting with ultraviolet light, squalene, which is shown in its chemical formula, breaks down into three by-products that may not be dangerous for environmental sensors,” adds Apple.

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