
◆ Features
Utilizes JGS1 ultraviolet-grade fused silica glass, featuring excellent ultraviolet transmittance, with outstanding performance particularly in the ultraviolet wavelength range.
High purity and low impurity content, suitable for optical systems with extremely high requirements for material purity.
Possesses good thermal stability and chemical stability.
◆ Common Specifications
Material | JGS1 |
Coating | AR coating |
Reflectance | R<0.5%@435-685mm |
Surface Quality | 60-40 |
Surface Flatness | 1.5λ@633nm |
◆ Applications
Ultraviolet laser systems
Fluorescence spectrometers
High-precision interferometric measurement systems
Semiconductor lithography
Dimensional requirements: The outer diameter and thickness shall be determined based on the spatial layout of the optical system and the beam size.
Mounting configuration: All circular lenses from Mloptic can be mounted on standard lens sleeves, fixed lens mounts, and various coaxial mounting plates.
Coating requirements: The coating quality must comply with general specifications for optical coatings. Scratches or contamination on the coating should be avoided as they may affect the anti-reflection performance.
Cleaning taboos: Avoid cleaning with corrosive solvents such as strong acids and alkalis, as they may damage the anti-reflection coating and glass substrate. It is recommended to use optical-specific cleaning agents (e.g., isopropanol, diethyl ether) and gently wipe with soft lint-free cloths or lens paper to prevent surface scratches.
Transportation and storage: Optical surfaces must be strictly protected during transportation. When packaging, direct contact between protective films and optical surfaces is prohibited to prevent contamination by foreign substances or scratches.


Material | JGS1 | Diameter | Φ8 mm |
Diameter Tolerance | 0/-0.2mm | Thickness | 1mm |
Thickness Tolerance | ±0.1mm | Clear aperture | >90%CA |
Coating | AR coating | Reflectance | R<0.5%@435-685mm |
Parallelism | 0.05mm | Surface Quality | 60/40 |
Surface Flatness | 1.5λ@633nm | Transmitted Wavefront Error | λ/8@633nm |

