Hyundai Mobis has been granted a patent for a vehicle camera with a water-repellent coating layer, a reflective member, a lens group with high heat resistance, and an optical filter group. The camera is designed to allow water droplets to form at a predetermined angle and change the direction of the optical axis. The components are arranged in order along the optical axis. GlobalData’s report on Hyundai Mobis gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Hyundai Mobis, Driving behavior monitoring was a key innovation area identified from patents. Hyundai Mobis's grant share as of September 2023 was 36%. Grant share is based on the ratio of number of grants to total number of patents.

Patent granted for a vehicle camera with water-repellent coating

Source: United States Patent and Trademark Office (USPTO). Credit: Hyundai Mobis Co Ltd

A recently granted patent (Publication Number: US11774640B2) describes a vehicle camera with improved functionality and durability. The camera includes a water-repellent coating layer that allows water droplets to form at a predetermined angle, ensuring clear visibility even in wet conditions. The camera also features a reflective member with a reflective surface that can change the direction of the camera's optical axis.

The lens group of the camera consists of lenses with high heat resistance and a glass transition temperature of 140°C or higher. This ensures that the lenses can withstand high temperatures without compromising image quality. Additionally, the camera includes an optical filter group with one or more optical filters.

The camera is designed with the water-repellent coating layer, reflective member, lens group, and optical filter group arranged in order along the optical axis. This configuration allows the camera's optical axis to extend through all these components, ensuring optimal performance.

The patent also mentions that the water-repellent coating layer can allow a contact angle of at least 100° for water droplets. This further enhances the camera's ability to repel water and maintain clear visibility.

The patent also describes the use of plastic lenses in the lens group, with some lenses having a glass transition temperature of 152°C or higher. This ensures the lenses can withstand high temperatures without deformation or damage.

The patent further mentions that the vehicle camera can be mounted on various parts of a vehicle, including the front side, rear side, A-pillar, B-pillar, side mirror, and electronic mirror (e-mirror).

In another embodiment, the camera includes a lens cover that protects the reflective member. The water-repellent coating layer is formed on the front surface of the lens cover, and an infrared coating layer is formed on the rear surface of the lens cover.

Overall, this granted patent showcases advancements in vehicle camera technology, with features such as water-repellent coating, high-temperature resistant lenses, and flexible mounting options. These innovations aim to improve the performance and durability of vehicle cameras, ensuring clear visibility and reliable operation in various conditions.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.