Dielectric mirrors provide 98% average reflection

Aug. 13, 2022
Highly reflective dielectric mirrors enable optical telescopes to detect less luminous celestial bodies.

Highly reflective dielectric mirrors enable optical telescopes to detect less luminous celestial bodies, over a wavelength range from 390 to 950 nm. The optics provide an average reflection of 98% for more light directed to the telescope’s eyepiece for brighter images. They can be manufactured with diameters up to 300 mm.

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