UV Fused Silica Optical Biconcave BCX Fiber Coupling Half-sphere/Collimating Lenses. Customizable Options: Supports full customization, minor adjustments, and flexible design-based modifications. High Transmittance: Features 90%-95% transmittance with AR coating reducing reflection to <0.5%. Premium Material: Made from high-purity Fused Silica for superior optical performance. Wide Application: Suitable for lighting, medical, optical, photography, and laser devices. Strict Quality Control: 100% inspection with 30 QA inspectors ensuring high precision. Certified Standards: Complies with RoHS, ISO9001, CE, TUV, and MIL-PRF-13830B standards. OEM/ODM Service: Professional OEM and ODM services available for custom needs. 1-Year Warranty: Includes 1-year warranty with free repair services for peace of mind.