High-Sensitivity Endoscope Module Enables Wearable Eye-Tracking System:
Eye tracking technology is increasingly becoming a core insight tool in fields such as marketing, product research, user experience design, and sports analysis. Wearable eye tracker glasses synchronously record eye movements and the front scene through a built-in dual-camera system, thereby accurately restoring the user's visual attention distribution. In this precision system, the micro-camera module used to record eye movements is the cornerstone of technical implementation, and its performance directly determines the accuracy of pupil positioning, system real-time performance, and wearing comfort. The USB2.0 endoscope camera module launched by SincereFirst, with its miniaturization, high sensitivity, stability and reliability, is deeply compatible with the technical needs of wearable eye tracking glasses, and has become a key hardware support for building high-performance and cost-effective eye movement analysis solutions.
I. Miniaturized Design & High-Sensitivity Imaging: Ensuring Wearing Comfort & Accurate Eye Movement Signal Capture)
As wearable devices, eye tracking glasses have nearly stringent requirements on the size, weight and power consumption of built-in components to ensure long-term wearing comfort and invisibility. At the same time, the camera used for tracking eye movements needs to stably output high-contrast eye images under conditions of eye macro photography and variable light (such as user blinking, eyelash occlusion, and ambient light changes) to enable AI algorithms to accurately locate the pupil center.The combination of this module's ultra-compact 38mm × 38mm size and 1/3-inch AR0331 sensor perfectly addresses this dual challenge. Its miniaturized physical size (side length of about 3.8cm, in a small space) and lightweight design can be easily integrated into the temple or frame of glasses without adding almost any extra burden. The AR0331 sensor adopts a 2.2μm pixel design, achieving excellent light-sensing performance in a small photosensitive area. Combined with its wide focusing range from 1cm to infinity, it is particularly good at clearly capturing the texture and contour details of the iris and pupil at extremely close distances (the typical working distance between the eye and the lens). Even in indoor or uneven light environments, it can ensure that the eye image has sufficient signal-to-noise ratio, providing pure and stable original signals for the subsequent AI pupil center positioning algorithm, which is the first step to achieve high-precision gaze analysis.
II. High-Speed Stable Transmission & Wide Platform Compatibility: Adapting to Real-Time Processing & Multi-Platform Deployment
Modern eye movement analysis pursues real-time feedback and multi-scenario applications. Real-time performance requires that the eye movement video stream must be transmitted to the processing unit (such as an embedded motherboard or directly connected computer) with low latency and no stuttering; multi-scenario applications require hardware to quickly adapt to different operating systems and development platforms, reducing integration and deployment costs.
This module adopts a USB 2.0 high-speed interface and strictly follows the UVC (USB Video Class) protocol, achieving driver-free plug-and-play. This feature means it can seamlessly compatible with mainstream operating systems such as Windows XP/7/8/10, and can be easily connected to popular embedded development boards such as Raspberry Pi and Jetson Nano or lightweight industrial computers, which greatly simplifies the integration process of the eye tracking glasses hardware system. It supports multiple video output formats including MJPG/YUY2/H264, and can achieve a smooth frame rate of up to 30fps at VGA (640x480) resolution, ensuring that the continuous dynamics of eye movements can be completely captured. It meets the demand for real-time drawing of the gaze cursor, allowing researchers or coaches to instantly observe the visual focus of the subject.
III.Industrial-Grade Reliability & Wide Temperature Range Operation Capability: Matching Long-Term & Multi-Environment Usage Needs
Eye tracking glasses have a variety of application scenarios, which may involve environmental changes from indoor laboratories to outdoor stadiums. The equipment needs to have good environmental adaptability and long-term operation reliability. At the same time, slight vibrations or body temperature conduction that may occur during wearing also put forward requirements for the stability of components.
This module adopts SMT environmental protection technology to ensure high reliability of internal circuit connections. It clearly specifies an operating temperature range of -20℃ to 70℃ and a stable operating temperature range of 0℃ to 50℃, which can adapt to most indoor and outdoor application environments. The detailed reliability test items in the specification - including high and low temperature storage and operation, high temperature and high humidity test, thermal shock, vibration and free fall test - prove its robust and durable quality. This means that the eye tracking glasses integrated with this module can competent for tasks from short-term user experience testing to long-term sports training monitoring, ensuring the continuity and consistency of the data collection process, and providing a reliable data basis for research conclusions.
IV.Flexible Adjustable Parameters & Standardized Interface: Empowering Algorithm Optimization & System Customization
Different application scenarios (such as dim shopping environment research vs. bright stadium analysis) or different races (differences in pupil color and size) may require slight parameter adjustments of the camera to optimize image quality. The scalability of the system is also equally important.
This module provides a wealth of software-adjustable parameters through the UVC protocol, including brightness, contrast, saturation, gamma value, white balance, gain and exposure value, etc., and supports automatic exposure (AEC) and automatic white balance (AWB). Developers or researchers can flexibly adjust imaging parameters according to specific experimental conditions or subject characteristics to obtain eye images that are most conducive to pupil recognition algorithm processing. Its standard M12 lens interface also provides the possibility of replacing lenses according to different field of view (FOV) requirements in the future, increasing the flexibility of system design.
Summary
In summary, SincereFirst's USB2.0 endoscope camera module accurately meets the core needs of wearable eye tracking glasses for "eye cameras" through its miniaturized structure, high-sensitivity close-range imaging, plug-and-play high compatibility, industrial-grade reliability, and flexible software controllability. Its integration enables eye trackers to capture the mysteries of human vision more accurately, stably and comfortably, converting invisible gaze into valuable data insights. It has strongly promoted the intelligent process of behavioral science research, business decision optimization and sports performance analysis, and truly realized the technical vision of "insight into behavior and cognition by understanding gaze".
