KENLEY, England, June 30, 2016 — Optical Surfaces Ltd. has announced On-Axis Parabolic Mirrors up to 600 mm in diameter. The mirrors offer a surface accuracy of >λ/10 P-V and smoothness of 20/10 scratch/dig. Surface quality and high reflectivity coatings enable researchers to achieve high optical performance and efficiency required by demanding experiments. The mirrors are free of spherical aberrations, focusing the parallel beam to a point or point source to infinity. The higher achievable f-number allows more energy to be concentrated.