Core Viewpoint - The article discusses the potential damage caused by automotive lidar systems to smartphone cameras, highlighting incidents where laser emissions have resulted in physical damage to camera lenses and sensors [1][4][17]. Group 1: Lidar Technology and Functionality - Automotive lidar systems emit laser pulses to measure distances and shapes of objects by analyzing the time and intensity of reflected signals [8]. - The precision of lidar is determined by the number of laser lines it can emit, with higher line counts resulting in greater accuracy [10]. - Typical lidar systems scan a horizontal field of 120° and a vertical field of 25° over distances of several hundred meters [10]. Group 2: Damage Mechanism - When lidar lasers hit a smartphone camera lens, they can penetrate through the lens's micro-lenses and damage components like the CMOS sensor, leading to various degrees of damage [12]. - The energy density required to damage a CMOS sensor varies with the wavelength of the laser, with 532nm and 1064nm lasers needing 28.95 mJ/cm² and 40.79 mJ/cm² respectively [13]. - Current automotive lidar systems typically operate at wavelengths of 905nm and 1550nm, with the latter requiring higher energy densities to cause damage [15]. Group 3: Safety and Standards - Lidar systems are designed to meet Class 1 safety standards for human eye safety, ensuring that single pulse energy is below 8mJ/cm² [15]. - The 1550nm wavelength lasers are less harmful to human eyes due to their absorption by water, which is present in the human body, thus reducing the risk of retinal damage [19][21]. - The 1550nm lidar systems can achieve detection ranges over 300 meters, surpassing the 200 meters typical for 905nm systems, albeit at the cost of potential damage to camera sensors [21]. Group 4: Industry Implications - The incidents of camera damage from lidar systems have raised concerns about the trade-offs between enhanced lidar performance and the safety of consumer electronics [23]. - Companies like NIO, which utilize advanced lidar technology, may need to address these issues to maintain consumer trust and product integrity [23].

Core Viewpoint - The article highlights the significant upgrade of the Li Auto L6789 model, particularly the standard inclusion of Hesai's ATL LiDAR across all variants, emphasizing its advanced features compared to the previous ATX model [1]. Group 1: Technical Specifications - The ATL LiDAR features a fourth-generation chip architecture with a dual-core MCU [2]. - Compared to the Hesai AT128, the ATL's size and weight have been reduced by 60% [2]. - The minimum exposed window height is 25 mm, consistent with the public version of ATX [2]. Group 2: Performance Enhancements - The ATL achieves a best angular resolution of 0.08° (H) × 0.1° (V), an improvement over the ATX's 0.1° × 0.1° [3]. - The higher horizontal resolution and increased point cloud density at the same operating frequency enhance performance [4]. - The ATL can activate optical zoom while driving at high speeds, allowing for a 30° field of view with a maximum range of 200 meters, effectively doubling the resolution [4]. Group 3: Safety Features - Li Auto has customized the ATL with intelligent zoom functionality, focusing on enhancing the active safety capabilities of the AD Pro and AD Max systems [4]. - The latest capabilities include AEB (Automatic Emergency Braking) that can stop at 120 km/h in rainy night conditions and AES (Active Emergency Steering) that can navigate around two accident vehicles at 130 km/h in the dark [4]. - This upgrade aligns the active safety capabilities across the entire Li Auto lineup, from L6 Pro to MEGA Home [5].