15+ Years of Precision Optical Manufacturing Excellence
Beijing Hengdingguang Technology Co., Ltd. is a professional company specializing in R&D, production, and sales of optical components. As the core operator of the PhotonEdge brand, we are committed to providing high-quality precision optical components and solutions to global customers.
With years of experience in the optical industry, we have established long-term partnerships with customers in Europe, North America, Asia Pacific, and other regions. Our products are widely used in medical equipment, laser technology, scientific research, industrial manufacturing, and defense industries.
Quality Management System Certified. Our quality management system meets international standards, ensuring consistent product quality and customer satisfaction.
High-precision optical components with strict quality control at every stage of production.
Every product undergoes rigorous inspection and testing before shipment to ensure quality.
Efficient production and logistics system ensures fast delivery for standard and custom orders.
Guided by customer needs, through continuous R&D and process iteration, we constantly expand the boundaries of optical technology. We are committed to deepening the "Technology Empowerment, Illuminating the Future" strategy, working hand in hand with global partners to build an optoelectronic innovation ecosystem and contribute to the advancement of optical technology.
We stand behind our products with comprehensive quality guarantees
All standard products come with a 12-month warranty against manufacturing defects. Extended warranty options available for custom orders.
Every component undergoes rigorous inspection including surface quality, dimensional accuracy, coating thickness, and spectral performance testing.
Our optical engineers provide expert technical support from material selection through installation, with 48-hour response guarantee.
Customer satisfaction is our top priority
Uncompromising commitment to quality
Continuous improvement and innovation
Comprehensive pre-sales and after-sales support
K9 (equivalent to BK7/SCHOTT) is the most widely used optical glass. Transmission range: 330nm-2100nm. Refractive index Nd=1.51637, Abbe number Vd=64.17. Excellent homogeneity and low bubble content. Standard choice for visible and near-IR applications including lenses, prisms, windows, and mirror substrates. Available with AR, HR, and beamsplitter coatings.
UV Fused Silica (JGS1/JGS2/JGS3) offers exceptional transmission from 185nm to 2500nm with very low coefficient of thermal expansion (0.58×10⁻⁶/°C). Ideal for UV optics, high-power laser applications, and environments with large temperature fluctuations. Superior homogeneity and minimal fluorescence. Used in excimer laser systems, UV spectroscopy, and precision imaging.
Zinc Selenide (ZnSe) transmits from 600nm to 18µm with high IR transmission (T>70% @ 10.6µm). Chemically inert and non-hygroscopic. The preferred material for CO2 laser optics (10.6µm) and FLIR thermal imaging windows. Available with AR/DLC coatings for high-power and environmental protection. Minimum order quantities may apply due to material sourcing.
Germanium (Ge) transmits from 2µm to 14µm with high refractive index (Nd=4.003 @ 10.6µm), enabling compact optical designs. High hardness and good thermal conductivity. Widely used in LWIR thermal imaging, FTIR spectroscopy, and IR sensing systems. Requires anti-reflection coating due to high surface reflectivity (~36% per surface uncoated). Temperature-sensitive above 100°C.
Silicon (Si) transmits from 1.2µm to 7µm and again from 25µm to 300µm (far IR). Low density (2.33 g/cm³) and high thermal conductivity make it ideal for lightweight IR optics and laser scanning mirrors. Cost-effective alternative to Ge in MWIR (3-5µm) systems. Widely used in IR cameras, gas sensors, and free-space optical communication.
Calcium Fluoride (CaF2) transmits from 170nm to 7.8µm — one of the broadest transmission ranges of any optical material. Very low refractive index (1.4289 @ 587nm) enables high-efficiency AR coatings. Low solubility and high laser damage threshold make it ideal for UV excimer laser optics, fluorescence microscopy, and spectroscopy. Available in UV-grade (193nm ArF) and IR-grade variants.
Sapphire (Al₂O₃) transmits from 180nm to 4.5µm with extreme hardness (Mohs 9), making it virtually scratch-proof. Excellent chemical resistance and thermal stability up to 2000°C. Ideal for harsh environment windows, pressure viewport windows, watch crystals, and UV/VIS/IR windows requiring maximum durability. High birefringence must be considered in precision applications.
Magnesium Fluoride (MgF2) transmits from 115nm to 6.5µm — one of the shortest UV cutoff wavelengths of any optical material. Low refractive index (1.376 @ 587nm) makes it the industry standard single-layer AR coating for visible optics. Widely used in VUV optics, excimer laser windows, and as a coating material for broadband AR applications.
State-of-the-art CNC optical grinding and polishing machines for precision component fabrication.
Advanced vacuum coating systems for anti-reflection, high-reflection, and dielectric coatings.
Full inspection capabilities including interferometry, spectrophotometry, and surface quality verification.
Class 1000 clean environment for optical assembly, coating, and final inspection processes.
What our global partners say about working with PhotonEdge
The HR coatings on their dielectric mirrors exceeded our expectations. We've achieved consistent 99.8% reflectance at 1064nm across our entire order. The surface quality of λ/10 flatness has significantly improved our laser system's beam alignment.
We required custom aspheric lenses for our confocal microscopy project. PhotonEdge delivered prototypes within 3 weeks that met our tight tolerance requirements. The technical communication throughout was excellent.
Consistency across 500 units was critical for our endoscope production line. PhotonEdge maintained ±0.01mm tolerance uniformity across the entire batch. Zero defects after 100% inspection - truly impressive quality control.
Despite our compressed timeline, PhotonEdge delivered our entire order in just 10 days. The custom ZnSe lenses for our CO2 cutting system arrived with complete documentation and test reports. Exceptional service under pressure.
Explore our state-of-the-art manufacturing facilities
Meet the experienced professionals behind PhotonEdge's precision optical solutions
15+ years experience in precision optics industry. Founded PhotonEdge in 2010 with a vision to provide world-class optical components from China.
Contact MePhD in Optical Engineering. Leads R&D and technical support with deep expertise in optical design and coating technology.
Contact MeInternational business expert with 10+ years in global optical component trade. Manages customer relationships across 50+ countries.
Contact MeDownload product catalogs, specifications, and technical documentation