Large Output Beam Expander Optics for Interferometric Testing
Product News Thursday, March 23, 2023: Optical Surfaces Ltd.
Optical Surfaces Ltd is a manufacturer of large output beam expander optics enabling interferometers to be used for testing of large optical flats up to 600mm in diameter.
Large output beam expander modules from Optical Surfaces comprise an air-spaced lens doublet input coupled to a large spherical lens to increase the diameter of a collimated input beam (50 – 100mm) to a larger output beam (300 – 600mm).Designed to deliver low wavelength distortion and high transmission over specific wavelengths, these large output beam expander optics provide diffraction limited performance over their entire aperture.
