Our precision 45 Elliptical Flat Mirrors are ideal for both technical and astronomical applications. Because of their elongated major axis, they are perfect for bending/folding light at precise angles with minimum wave distortion. All are ground, polished, and tested to our exacting standards. Each size is available with protected aluminum. -- Material: Pyrex Fine annealed Brand No. 7740 -- Axis Dimension Tolerance: 1% -- Surface Quality: 60/40 Scratch/Dig -- Surface Accuracy: 1/8 Wave (l) [l = 632.8nm] |