In scenarios such as precise spectroscopy research, optical component calibration, photovoltaic performance testing, optical film inspection, environmental spectroscopy analysis, and photochemical mechanism research, the core pain points of experimental data distortion, chaotic spectral lines, and poor repeatability are mostly concentrated on insufficient spectral resolution, severe stray light interference, wavelength scanning drift, susceptibility to optical cavity contamination, and unstable transmission accuracy. Ordinary monochromators lack optimized optical paths and have simple mechanical structures. Long-term continuous operation often leads to baseline elevation, characteristic peak distortion, and precision attenuation, which not only increase the equipment calibration and operation costs but also fail to meet the high precision and consistency requirements of long-term scientific research experiments and industrial batch quality inspections.

The Sefan Optoelectronics 7IMU30 series single grating scanning monochromator is a high-performance universal spectrometric device based on an iterative upgrade of a 300mm standard focal length. It is equipped with an optimized asymmetric Czerny-Turner aberration cancellation optical path, secondary dispersion elimination technology, and independent dual-cavity protection structure. It is combined with a high-precision sine drive system and intelligent electronic control scheme. With ultra-high spectral resolution, extremely low stray light, non-drift accurate scanning, long-term dust-proof and anti-fouling, hand and electric dual control, and high integration capabilities, it combines excellent performance with ultra-high cost-effectiveness, becoming a standardized core spectrometric equipment in the fields of university teaching, basic research, and industrial precision inspection.

Optical path optimization, low noise, high resolution, and restoration of true and detailed spectra

The 7IMU30 series adopts an upgraded asymmetric horizontal Czerny-Turner optical path, combined with aberration cancellation and secondary dispersion elimination dual-optimized architecture. It corrects spectral line shifts, diffraction distortions, and high-order stray light interference from the optical source, significantly reduces stray light noise, and completely solves the common problems of spectral line broadening and chaotic baseline in traditional single-grating devices. The equipment is equipped with a 1200 lines/mm high-precision diffraction grating, with a spectral resolution of up to 0.1 nm, a minimum scanning step as low as 0.00625 nm, and industry-leading wavelength accuracy and repeatability. It can precisely capture fine spectral features, clearly distinguish overlapping spectral lines, and perfectly adapt to high-precision experimental scenarios such as fine spectral analysis and weak signal collection. The entire spectrometer covers the 0?1100 nm wavelength range, spanning the ultraviolet, visible, and near-infrared mainstream experimental intervals. It can flexibly meet the single-color light output and full-spectrum scanning requirements of multiple scenarios.

Dual-cavity physical isolation design, dust-proof and anti-fouling, long-term precision without attenuation

In response to the industry shortcomings of traditional integrated cavities being prone to dust accumulation and being easily contaminated by mechanical oil, the 7IMU30 series adopts a completely physical isolation structure of optical cavity and mechanical transmission cavity, completely isolating the volatile lubricating oil of transmission components and dust from invading the optical cavity. Long-term use ensures constant cleanliness of optical lenses, eliminating the problems of increased light attenuation, rising stray light, and decreased spectral accuracy. This significantly extends the equipment's service life and reduces the cost of downtime calibration and maintenance consumables. The slit of the equipment adopts a continuous symmetric adjustable design from 10 μm to 3 mm, and is equipped with a dedicated edge protection mechanism to balance the light transmission efficiency and spectral accuracy. Whether it is for weak fluorescence signal collection or stable testing in strong light bands, it can output pure, straight, and free-of-peak standard spectra. At the same time, a nitrogen gas replacement interface is reserved to avoid atmospheric absorption interference and adapt to special wavelength band high-precision detection conditions.

Precise sine drive system, ultra-low drift, suitable for all-weather continuous operation

The core drive unit is equipped with a precise grinding sine screw + high-maintenance linear guide rail golden combination. The drive is smooth and quiet, without mechanical clearance, and without return error. The mechanical structure has extremely strong stability. High-frequency reciprocating scanning, long-term continuous operation without precision attenuation or wavelength deviation. The equipment has undergone strict aging tests, with a wavelength drift of minimal magnitude after 72 hours of continuous operation. It perfectly adapts to high-intensity operation scenarios such as long-term dynamic monitoring in scientific research, industrial batch continuous detection, and long-term spectral tracking, eliminating the need for frequent downtime calibration, and significantly improving experimental efficiency and data consistency. The entire machine supports both manual handwheel fine-tuning and computer automatic scanning dual control modes. The manual mode is simple and intuitive, suitable for university teaching and practical demonstrations; the electric mode supports one-click band scanning, fixed-point wavelength locking, and parameter automatic recording, meeting the needs of precise research and automated detection. The standard configuration includes a high-speed USB2.0 communication interface, with stable transmission and fast response, and convenient and efficient upper computer control.

Modular expansion design enables rapid construction of an integrated spectral testing system.

The 7IMU30 series has been comprehensively upgraded in its expansion adaptability, seamlessly connecting with Sefan's entire series of xenon lamps, halogen lamps, deuterium lamps, and mercury lamps as research benchmark light sources. It is compatible with fiber optic interfaces, integrating spheres, photodetectors, photomultiplier tubes, and other various supporting accessories. Without complex optical path adjustment, it can quickly build a standardized spectral testing platform integrating light source, precise spectroscopy, and high-precision detection. The equipment supports flexible replacement of multiple specifications of gratings, allowing for the switching of test bands as needed, and adapting to different experimental schemes for iterative upgrades. At the same time, it offers multiple models of parallel outgoing light and vertical outgoing light, enabling flexible adaptation to various optical platform layouts, with scene adaptability far exceeding that of general monochromators.

Full scene and global compatibility, multi-dimensional implementation in teaching, research, and industry.

With balanced precision performance, long-term stable operation, and ultra-high cost-effectiveness, the 7IMU30 series is applicable in multiple fields, widely used in university optical spectroscopy teaching and training, spectral response calibration of photodetectors, spectral performance testing of photovoltaic cells, optical film transmission/reflectance detection, LED light source spectral calibration, environmental water quality and atmospheric spectral monitoring, basic photocatalysis research, and optical characterization of nanomaterials. It is a must-have main spectrometer equipment for basic optical laboratories, photovoltaic enterprise quality inspection lines, and is a must-have for research, teaching, and industrial quality inspection scenarios. It is a necessity for basic optical laboratories, photovoltaic enterprises' quality inspection lines, and is a must-have for spectrometers in the field of basic optics.

300mm standard focal length optical path | Low coma and low stray light, high resolution | Dual cavity isolation, dust-proof and anti-stain | 0.00625nm ultra-small scanning step | Manual and electric dual control intelligent operation | High system integration and easy expansion

Precise spectroscopy lays the foundation for experiments, stable performance empowers long-term innovation. The 7IMU30 series monochromatic scanning monochromator of Sefan Optoelectronics, with mature optical technology, high-quality mechanical craftsmanship, and low operation and maintenance costs and high adaptability, balances precision and practicality, fully empowering the popularization of spectral teaching, iterative advancement of basic research, and improvement of quality and efficiency in industrial precise detection!