Optical Surfaces Ltd. routinely produces the long radius concave spherical mirrors for Schlieren imaging systems in a range of materials including fused silica, Zerodur and ClearCeram. The company has produced concave spherical mirrors for Schlieren imaging applications looking at airflow turbulence, explosive shockwaves, gas leaks and visualization of transparent thermal phenomena.
Surface accuracy of better than lambda/10
The optical craftsmen at Optical Surfaces are experienced in producing concave spherical mirrors (up to 800mm in diameter) with surface accuracy of better than lambda/10 with particular emphasis on smoothness of the profile. Ultra-high precision surface finish and durable optical coatings combine to provide superior Schlieren image quality.