Recently, Stever (Shanghai) Electronic Technology Co., LTD., launched two high frame rate industrial array CMOS image sensor products, 2MP and 1.3MP — SC235HGS and SC135HGS. The two chips are powered by innovative SmartGS®-2 Plus technology, which offers three performance advantages: high image performance (high sensitivity, high quantum efficiency, low noise), high speed (high frame rate, high shutter efficiency), and high dynamic range. As the latest products of Stevi industrial machine vision application series, SC235HGS and SC135HGS can be widely applied to industrial inspection scenes to ensure distortion-free imaging and high-speed image acquisition performance, bringing more accurate and efficient visual inspection, quality control and production optimization capabilities for industrial cameras, helping to improve the efficiency and quality of industrial production.

With the increasing demand for intelligence and automation in the industrial field, machine vision technology has become an important means to improve production efficiency and quality. As the core component of machine vision, CMOS image sensor is widely used in industrial detection, recognition, measurement and other scenes. According to Yole, the industrial CIS market will maintain high growth in the next four years, and the market size will reach $1.177 billion by 2027.

Advanced SmartGS®-2 Plus technology, with stronger performance to create high reliability visual inspection applications

With high measurement accuracy and visual data acquisition capability of real-time imaging, global shutter sensor is widely used in various industrial machine vision application scenarios such as detection, identification and sorting, which has obvious advantages in eliminating motion blur and improving image quality.

The SC235HGS and SC135HGS adopt the innovative SmartGS®-2 Plus technology, which is based on global shutter technology and backlight pixel structure design, resulting in higher sensitivity and quantum efficiency (QE), and the application of High Density MIM(HD MIM) technology. The random noise is greatly reduced and the image quality is improved. With the help of SmartGS®-2 Plus technology, the SC235HGS and SC135HGS deliver superior imaging performance over their 4.0μm predecessors based on a smaller 3.45μm pixel size.

SC235HGS and SC135HGS image sensors with high sensitivity, high QE and low noise can greatly improve the ability of professional machine vision applications to detect fast-moving parts, achieve high-quality image capture in low illumination environment, and improve production efficiency.

High sensitivity

Combined with Steveway’s unique SFCPixel® patented technology, the SC235HGS and SC135HGS chips have a sensitivity of up to 13490mV/lux*s, enabling bright and clear images to be captured even at night or in low-light environments, enabling industrial machine vision applications to capture objects more accurately. Improve the accuracy and reliability of scanning.

High QE

With SmartGS®-2 Plus advanced technology, the SC235HGS and SC135HGS can achieve a peak quantum efficiency (peak QE) of 90%, an increase of about 7% compared to the previous generation of technology products. Even in the low-light industrial environment, the high QE performance of the new product can still help the machine vision camera accurately detect and measure the target, and efficiently solve the problem of automatic pipeline visual information collection.

Low noise

The SC235HGS and SC135HGS achieve better noise suppression and further optimize imaging performance at high temperatures with the help of Steway’s innovative ultra-low noise peripheral reading circuit technology. At 16x gain, the fixed noise (FPN) of the SC235HGS and SC135HGS is as low as 2.03e-, a substantial reduction of about 77% compared to the previous generation of technology products. In addition, both chips achieve PRNU as low as 0.62% and dark current (DC) as low as 350e-/s at 80°C, which is 26% and 39% lower than the previous generation of technology products, respectively. This not only brings clean and low noise imaging effect, but also improves the imaging performance of the new products at high temperatures.