
◆ Features
High-precision industrial-grade optical window, specifically designed for demanding optical systems.
Utilizes H-K9L optical glass, featuring excellent optical performance and mechanical stability.
High transmittance and low absorption rate, suitable for the visible to near-infrared wavelength range.
Surface coated with an anti-reflection layer, significantly reducing reflectivity and enhancing optical system efficiency.
Compliant with ISO 10110 standards and RoHS directives, ensuring environmental friendliness and reliability.
◆ Common Specifications
Material | H-K9L |
Coating | AR coating |
Surface Quality | 10-5 |
Reflectance | R<0.2% @633nm |
Surface Flatness | λ/4@633nm |
◆ Applications
High-precision imaging systems
Laser optical systems
Polarization-sensitive optical instruments
Scientific research and industrial inspection equipment
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 | H-K9L | Diameter | Φ20 mm |
Diameter Tolerance | 0.0/-0.2mm | Thickness | 3mm |
Thickness Tolerance | ±0.1 mm | Clear aperture | Φ10 mm |
Coating | AR coating | Reflectance | R<0.2% @633nm |
Surface Quality | 10-5 | Parallelism | 0.1' |
Surface Flatness | λ/4@633nm | Angle of incidence | 30° |


Material | H-K9L | Diameter | Φ25.4 mm |
Diameter Tolerance | 0.0/-0.1mm | Thickness | 5mm |
Thickness Tolerance | ±0.2mm | Clear aperture | >90%CA |
Coating | Uncoated | Surface Flatness | λ/10@633nm |
Surface Quality | 20-10 | Parallelism | ≤3' |

