At the forefront of photoelectric testing, material analysis, photocatalysis and device calibration, precise, stable, pure and adjustable monochromatic light is the key to determining the credibility of data and the success or failure of experiments. Beijing Saifan Optoelectronics' 7-L series wavelength-adjustable monochromatic light source, with wide spectral coverage + ultra-high precision + extreme stability + full scene compatibility, has transformed "any wavelength, precise output" into a daily routine, becoming the "spectral precise engine" for scientific research laboratories and industrial production lines.
1. Optical Summit: From Broad Spectrum to Monochromatic, Precise to Nanometers
✅ Full Spectrum Coverage, Switch Any Wavelength with One Click
The 7-L series is based on a composite light source of deuterium lamp + tungsten halogen lamp / xenon lamp, combined with Saifan's self-developed 7IMU10/7IMS series monochromatic spectrometer, achieving continuous adjustment from 200 to 2500 nm, covering the entire ultraviolet, visible light, and near-infrared spectrum. From deep ultraviolet photocatalysis to near-infrared material analysis, from fluorescence excitation to detector calibration, whatever wavelength you want to measure, output whatever wavelength, completely eliminating the complexity and errors of switching multiple light sources.
✅ Nanometer-level Precision, Zero Data Deviation
Using an asymmetric C-T optical path + smart diffraction + anti-second-order dispersion triple technology, combined with a 1200 lines/mm high-precision grating, it achieves:
Wavelength accuracy ±0.2nm, repeatability 0.025nm, each adjustment is precise as one time;
Bandwidth adjustable continuously (0.1–30nm), balancing resolution and light flux, suitable for ultra-fine analysis and high-throughput testing;
Scattered light as low as 5×10⁻⁴, spectral purity is full, weak signals can be clearly captured. Beijing Saifan Optoelectronics Instrument Co., Ltd.
✅ Ultra-Stable, Long-Term Experiment无忧
Equipped with military-grade active temperature control + highly stable linear power supply， the light power fluctuation is **<0.5% (xenon lamp)， continuous operation 48 hours wavelength drift <±0.02nm**. No need for repeated calibration， consistent data throughout the day， completely solving the industry pain point of "light source drift causing re-experiment".
2. Hardcore Design： Stable， Fast， Easy， Reliable for All Scenarios
✅ Integrated One-Stop， Ready to Use
The entire machine is fixed on the optical plate， with the light source + monochromatic spectrometer + filter wheel + optical path integrated. Factory completed wavelength calibration， ready for use upon unpacking. USB/RS232 dual control， combined with dedicated software， one-click setting of start/stop wavelength， step size， delay， fully automatic scanning or point output， even beginners can easily operate.
✅ Modular Expansion， Suitable for Thousands of Scenarios
Multiple output methods： spatial light， fiber coupling， integral sphere output， compatible with microscopes， probe tables， detector arrays；
Flexible accessories： 7IFW6 filter wheel， modulator bracket， adjustable diaphragm， collimation / convergence lens group， customized as needed；
Long-life Design： Optical / mechanical chamber strictly separated， nitrogen interface anti-pollution， mechanical life over 50，000 cycle times， lower maintenance cost. Beijing Saifan Optoelectronics Instrument Co.， Ltd.
✅ Compact and Efficient， Desktop / Integrated Dual Compatibility
Compact and lightweight， can be deployed on the desktop， or easily integrated into automated testing lines， portable detection equipment， versatile in laboratories， production lines， and outside. Beijing Saifan Optoelectronics Instrument Co.， Ltd.
3. All-round Empowerment： From Laboratory to Production Line， Everywhere Standout
?? Research Laboratory： The "Golden Partner" for Precise Experiments
Photoelectric Device Testing： CMOS/CCD quantum efficiency， detector spectral response， solar cell IPCE/QE calibration， data reproducibility is full；
Material Analysis： Absorption / Reflection / Fluorescence spectroscopy， film thickness， optical constant measurement， precise analysis of material characteristics； Photocatalysis / Photochemistry: Precise excitation at specific wavelengths, studying reaction mechanisms, photolysis of water, and degradation of pollutants, with more controllable experiments;
Biomedicine: Fluorescence imaging, photodynamic therapy, ophthalmic spectral detection, high-purity monochromatic light without interference from other light sources.
?? Industrial inspection: A "quality control tool" for production lines
Semiconductor / Optical Coating: Device response calibration, coating transmittance/reflectance detection, ensuring product consistency;
LED / Laser: Wavelength calibration, spectral screening, improving yield and performance;
Environmental monitoring: Detection of characteristic wavelengths of water and atmospheric pollutants, providing precise data for environmental assessment.
?? Teaching experiments: "Intuitive teaching aids" for optical principles
Direct demonstration of light dispersion, interference, and diffraction, making abstract optical principles more concrete, and facilitating physics, materials, and optoelectronics teaching experiments in universities.
Four. Quality Assurance: Sifan products, reliable and worry-free
The 7-L series has passed the ISO9001 quality system certification, with core components having a 3-year warranty, and after-sales response time ≤ 4 hours. From universities like Tsinghua and Peking University laboratories to photovoltaic and semiconductor leading production lines, the 7-L has received countless positive reviews: "Precise, stable, all-inclusive, our preferred choice for spectral testing" due to its nanometer-level precision, extreme stability, full spectral coverage, and full scene adaptability.
Conclusion: Choose the right monochromatic light source, and every detection has value
In the world of spectroscopy, a difference of a hair's breadth can lead to a world of difference. The 7-L series of adjustable monochromatic light sources from Sifan, with nanometer-level precision, extreme stability, full spectral coverage, and full scene adaptability, redefines the benchmark for domestic adjustable monochromatic light sources.
Whether you are a researcher pursuing the ultimate or an industrial engineer controlling quality, the 7-L can provide you with precise, stable, and efficient monochromatic light solutions - making complex spectral testing simpler and precise experimental data more routine.
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