Core Viewpoint - The article discusses the development of Kinethread, a full-body haptic exoskeleton system designed to enhance immersive experiences in virtual and augmented reality by providing realistic tactile feedback, overcoming the limitations of current consumer-grade and professional devices [1]. System Design: Rope-Driven Mechanism and Modular Structure - Kinethread utilizes a computer-controlled electric reel and rope transmission mechanism, combined with a modular tactical vest for load distribution, enhancing comfort during prolonged wear [2]. - The system integrates 10 electric reels, with 8 positioned around the waist to optimize ergonomic design and effectively hide reverse tension during operation, allowing clearer perception of force feedback [2]. Motor Selection and Weight Considerations - The system employs two types of high-torque brushless DC motors, with the larger motor weighing 265 grams and providing a maximum pull of 42N, while the smaller motor weighs 140 grams with a maximum pull of 17N [4]. - The total weight of the system, including the battery, is kept below 5 kilograms, with a wear time of under 30 seconds, balancing performance and practicality [4]. Pulley Mechanism and Force Output - The design incorporates traditional mechanical structures like pulleys to change force direction and provide mechanical advantage, achieving a maximum output force of 120N through a three-pulley structure on the back [6]. - The system's design allows for dual-direction drive from a single motor, reducing complexity and overall weight [6]. Control and Software Capabilities - Each motor connects to a custom driver, with multiple microcontrollers communicating with the host via USB, utilizing the open-source SimpleFOC library for closed-loop control at approximately 2kHz [11]. - The software, developed on Unity, supports various haptic feedback modes, allowing for simultaneous simulation of vibrations and dynamic forces, enhancing the immersive experience [11]. Performance Metrics - Kinethread demonstrates potential for consumer applications with performance tests showing peak force achieved within 50 milliseconds and a vibration feedback bandwidth of 200Hz, capable of producing over 3N of force at 100Hz [12]. - The system's standby power consumption is 1.5W, with typical scene power consumption averaging 10.9W, allowing for over 6 hours of wireless operation with a 12V 5600mAh lithium battery [12]. Application Scenarios - Kinethread can simulate various tactile effects, including static weight, dynamic forces, impact forces, and social interactions, enhancing user experience in virtual environments [13]. User Experience Evaluation - A user study with 12 participants indicated that the combination of vibration and dynamic feedback significantly outperformed other conditions in terms of realism, immersion, and instinctive reactions, highlighting the importance of dynamic feedback [15]. Future Prospects - Future developments aim to address limitations such as the inability to simulate pushing forces and potential risks associated with cable routing, while exploring additional types of force feedback and optimizing motor configurations for improved realism [16].

Group 1: Luxury Market Overview - In 2025, the global luxury goods industry is expected to face challenges, with a projected weighted organic sales decline of 3% year-over-year in Q2, worsening from a 1% decline in Q1, indicating increasing market pressure [2] - Many luxury brands are shifting focus towards more affordable and practical entry-level luxury products, with eyewear emerging as a central category [2] Group 2: Meta's Investment in Eyewear - Meta Platforms Inc. has acquired just under 3% of EssilorLuxottica, the parent company of Ray-Ban, for approximately €3 billion, marking a significant investment in the AI smart eyewear sector [4] - This investment deepens Meta's collaboration with EssilorLuxottica and reflects its long-term commitment to the smart eyewear market, with potential plans to increase its stake to around 5% [7] Group 3: Partnerships and Agreements - Prada has renewed its licensing agreement with EssilorLuxottica for the production and global distribution of its eyewear brands, extending the contract until December 31, 2030, with an option to renew until December 31, 2035 [5] - Kering Eyewear has acquired Italian lens manufacturer Lenti, enhancing its vertical integration in the luxury eyewear sector, and has shifted to direct control over design, production, and distribution [12] Group 4: Market Trends and Innovations - The global luxury eyewear market is projected to grow from $34.76 billion in 2024 to $40.84 billion by 2030, indicating a robust growth trajectory compared to the overall luxury goods sector [16] - Meta has launched the "Ray-Ban I Meta" smart glasses, which quickly sold over 1 million units, showcasing strong consumer interest in smart eyewear [9] Group 5: Challenges and Strategic Responses - Recent changes in U.S. tariff policies pose new challenges for eyewear manufacturers, with EssilorLuxottica evaluating the possibility of relocating some production to the U.S. [18] - EssilorLuxottica reported a 6% year-over-year revenue increase to €26.51 billion for FY 2024, with Q1 2025 revenue rising 8.1% to €6.85 billion, driven by growth in the European market and strong performance of Ray-Ban Meta smart glasses [18]

Group 1 - The third "Goer Cup" VR/AR Challenge Finals will take place from July 16 to 18 at Goer's global R&D headquarters in Qingdao, with over 300 teams from more than 50 universities participating, marking a growth of over 40% compared to previous editions [1][2] - A total prize pool exceeding 200,000 yuan will be awarded to the finalists, which include elite teams from top universities such as Tsinghua University, Zhejiang University, and the National University of Singapore [1] - The finals will adopt a "technology arena + industry exploration" format, where teams will showcase their innovative VR/AR technologies and industry application solutions to a panel of judges composed of corporate executives, senior R&D engineers, and industry experts [2] Group 2 - The judging criteria will include innovation, technology, maturity of the work, market and business model, and on-site performance, leading to the selection of first, second, third prizes, and a special award [2] - Winners will gain access to a green channel for recruitment at Goer, along with quality job recommendations, while outstanding proposals may be included in Goer's partner database for future collaboration [2] - Participants will have the opportunity to visit Goer's global R&D headquarters and experience leading-edge manufacturing lines, gaining insights into the entire process from concept to mass production [2]