Application // Chip Removal Process during Lenslet Creation

Lenslet arrays are used for the directional reflection of light or laser beams to create a defined constant or transient light pattern. Hence, the requirements for form and surface finish are very high. By using ultra-precision machine tools and spindles, natural diamond tools, and complex machining methods, lenslets can be machined with a form accuracy of below 50 nm and a surface finish of under 5 nm Ra.

Precitech, Vision Research, and Levicron together set up a lenslet creation process along with a high-speed camera system to observe details of how chips are removed. In the second video, the spindle spins at 60,000 rpm, which means 1,000 Hz, while the camera operates at 1,000 fps. For the viewer, the tool appears stationary since the rotation and the fps rate were perfectly synchronized.

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Your contact person: Ralf Dupont