The 10DD20ER.2 is a D-shaped Protected Silver Broadband Mirror, 25.4 mm (1 inch) diameter, with a thickness of 6.0 mm, and flatness of λ/10. This mirror's straight edge allows the separation of multiple tightly packed beams or sources. This mirror has a 40-20 surface quality and has an average reflectivity greater than 96% from 480 – 1,100 nm and >98.5% from 1,100 – 20,000 nm (1.1 – 20 μm).

10 dd20er。2是一个d样式保护银宽带镜子,25.4毫米(1英寸)直径,厚度为6.0毫米,平坦的λ/ 10。这面镜子的直边可以分离多个密集的光束或光源。这个镜子40-20表面质量和平均反射率大于96% 480 - 1100 nm和> 98.5% 1100 - 20000海里(1.1 - 20μm)。