Optical Surfaces Ltd. is a leading manufacturer of top-quality toroidal mirrors for spectroscopic and imaging applications.
Large, high precision toroidal mirror. Image Credit: Optical Surfaces Ltd.
Toroidal mirrors are aspheric mirrors where the curvature of orthogonal horizontal and vertical axes is different. For optical products where a small, focused spot is needed, toroidal mirrors combine focusing and beam folding capabilities in a single element. This improves energy throughput, saving money, and allows for more compact designs. Toroidal mirrors also correct for the astigmatism that results when a spherical mirror is used off axis.
Leveraging a highly stable production facility – Optical Surfaces has decades of experience of manufacturing toroidal mirrors from BK7, Zerodur and fused silica with surface accuracy up to λ/10 and surface quality of 10:5 scratch dig. The company’s skilled optical technicians are experienced in producing toroidal mirrors in a range of shapes with dimensions up to 500 mm. An extensive range of high reflectance coatings are available.