In the field of high-end spectral analysis, a single grating monochromator has been unable to meet the stringent requirements of full spectral coverage, high resolution, and low stray light. The 7ISU30 series of three-grating scanning monochromators from Sefan Optoelectronics, with the synergy of three gratings, precise optical path and intelligent control, has created a "wide spectral coverage, ultra-high resolution, and ultimate purity" spectral solution. It has become the preferred tool for scientific research frontiers, industrial quality control and optical metrology, redefining the performance benchmark of high-end monochromators.

The core breakthrough of the 7ISU30 series lies in the perfect integration of the three-grating synergy and the asymmetric horizontal Czerny-Turner optical path. It is standardly equipped with three gratings of 1200 lines/mm, 600 lines/mm and 300 lines/mm, covering wavelengths from 185 to 1250 nm, spanning the entire deep ultraviolet to near-infrared range. It can switch bands with one-click operation without the need to replace hardware. The design of eliminating aberration and second-order dispersion ensures that the spectral lines are more symmetrical, with stray light as low as 5×10⁻⁴, and the data purity far exceeds industry standards. The 300mm focal length combined with an F/4.8 optical system allows a resolution of 0.01 nm, with a minimum step precision of 0.0023 nm, and full wavelength repeatability and accuracy, easily distinguishing nanometer-level wavelength differences.

In terms of mechanical and control aspects, the 7ISU30 series showcases meticulous craftsmanship. The precise worm gear transmission ensures smooth operation, low noise and long lifespan, completely eliminating errors caused by mechanical jitter. The optical chamber and mechanical chamber are strictly separated to prevent lubricating oil from contaminating optical components, ensuring long-term operational stability. The slit is continuously adjustable from 10 μm to 3 mm, with automatic protection for the blade edge, balancing precision and durability. USB2.0 high-speed communication supports computer-controlled monochromator switching, wavelength scanning and filter replacement, plug-and-play, and one-click completion of wide-spectrum testing. An exclusive nitrogen gas filling port eliminates atmospheric absorption interference, making ultraviolet and near-infrared measurements more accurate.

From basic research to high-end manufacturing, the 7ISU30 series has no boundaries in application. In scientific research laboratories, it is the core of Raman, fluorescence and absorption spectroscopy, helping with the optical characterization and performance testing of semiconductor, quantum dot and perovskite materials, becoming the "data cornerstone" of frontier research. In the industrial field, it is embedded in production lines for photovoltaic spectral response, film thickness and composition detection, and LED wavelength calibration, providing precise results in seconds, improving yield and production efficiency. In optical metrology and environmental monitoring, it accurately captures weak signals, supporting light source calibration, gas component analysis and trace substance detection, providing reliable support for scientific research decisions and environmental monitoring.

Compatible with SMA905 optical fiber interface, various light sources and single-point/line array detectors, the 7ISU30 series can quickly build customized testing systems, adapting to multiple scenarios and diverse needs. Whether it is basic experiments in university laboratories or harsh conditions in industrial production lines, it provides stable output and efficient operation, becoming the "efficient assistant" for researchers and engineers.

Choosing the 7ISU30 series is choosing "all-encompassing, precise and stable" high-end spectral solutions. With core technologies breaking import dependence and high cost performance empowering domestic research and industrial upgrading, each spectroscopic measurement is ultra-pure, and each set of data is accurate and reliable. On the path of exploring light and matter, the 7ISU30 series always crafts precision with meticulous craftsmanship, uses professionalism to empower innovation, and becomes your best partner to unlock the truth of spectroscopy and break through the boundaries of scientific research.