The LBTEK Beam Block uses a Ø1-inch Soda Lime Glass substrate, with a low Reflectance chrome film precisely deposited in the central region. The chrome-coated region has an optical density OD≥2.5 in the 400 – 1050 nm band, achieving high attenuation blocking for the target band. An Antireflection Coating (AR Coating) is also applied to the chrome film region, significantly reducing back reflection from the chrome-coated region and thereby improving image contrast and signal-to-noise ratio. The product is suitable for stray light research, dark-field Microscope, phase imaging, and other applications, and supports mounting in Ø1-inch Optical Components mounts or multi-axis adjustment mounts for precise alignment in the XY / XYZ directions. In addition, LBTEK provides custom solution for beam blocks. If you have other requirements, please contact LBTEK technical support.