OptiCentric^® Cementing Station

OptiCentric^® Cementing Station

Lens manufacturing not only includes glue bonding of a lens to a barrel, but also the centering and cementing of two lenses to a doublet. For this purpose TRIOPTICS has developed the OptiCentric^® Cementing Station as a supplement to the TRIOPTICS OptiCentric^® System.

It includes a 2-axis x-y piezoelectric fine positioning stage and a lens specific grabber. The grabber does the precise positioning of the upper lens to the optimally centered position with respect to the lower lens. The centering procedure relies on the proprietary TRIOPTICS MultiLens^® algorithm. It determines first the optical axis of the lower lens and calculates the target position for the top lens. The top lens is then pushed by the piezo driven grabber to the target position under control of the high resolution CCD autocollimator. With this technology, doublets with centering accuracies below 1 micron can be achieved. Similar to the Bonding Station, the complete process is computer controlled. Driven by customer demands in the high volume market of plastic molded lenses the process has been optimized for throughput. The complete cementing cycle including UV curing and manual sample handling is performed within less than 10 seconds.