High-volume production of digital cameras for mobile phones has led to a need for high-quality, high-speed in-line testing. A new ultrafast wavefront analyser can test complete trays or wafers — including spherical and aspherical optics — in large quantities over the full aperture in seconds per lens.Dr. I. Erichsen, Dr. S. Krey and A.K. Ruprecht, Trioptics GmbH, Wedel, Germany, and M. Cherrier, Trioptics France, VilleurbanneThe introduction of digital cameras into mobile phones has led industry to produce increasingly larger quantities of lenses for camera objectives. Facilitated by a recently introduced technology for mass fabrication of micro-optical elements in large quantities on single wafers, this has had an effect on the demand for test instruments. With the constraints of speed and high measurement accuracy, these instruments also must offer automated wafer alignment procedures and positioning algorithms. Figure 1. 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