B270 Glass Polished Optics Surface Laser Protective Window with Ar Coating

B270 Glass Polished Optics Surface Laser Protective Window with Ar Coating. High Transmittance: Transmittance exceeds 95% for superior light penetration. Customizable Options: Supports custom sizes, materials, and special optical coatings. Wide Material Range: Available in BK7, Fused Silica, Sapphire, B270, and more. Multi-Application: Suitable for medical, laser, photography, and industrial optics. Certified Quality: RoHS and ISO9001 certified for reliability and safety. Protective Coating: AR, HR, HT coatings enhance durability and light transmission. High Precision: Surface accuracy up to 1/4lambda with tight diameter tolerance. Fast Delivery: 3-day delivery for stock items; 15-25 days for customized orders.