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        Beijing Delfa purchased a digital wave front laser interferometer


        In 2007, Beijing Delfa purchased a digital wave front laser interferometer. This instrument uses Fizeau interference principle, which can be used to measure the surface figure of optical glass, metal (copper, aluminum, etc.) and optical crystal materials (germanium, silicon, ZnSe, etc.).

        The digital wave front laser interferometer be used to ensure the surface accuracy of products, and effectively improved quality inspection capability for Delfa.