DGaO Proceeding
نویسندگان
چکیده
Hybrid optical elements that combine refractive and diffractive functionality are versatile components for all kinds of applications in imaging or metrology. In the past those elements were composed of a flat diffractive and a curved refractive surface. Fusing both functions in a single surface will enhance the capabilities of these optical components further. The fabrication of such precision elements is a challenge since most micro structuring tools are limited to flat surfaces. The growing interest in structuring non-flat surfaces arises in the increasing number of systems designed for this purpose. Radtke et. al. demonstrated a laser writing system designed for structuring surfaces with surface normal deviations of up to 10° [1]. Xie et. al. have demonstrated the fabrication of rotationally symmetric grating structures on curved substrates [2]. In this contribution we present a laser direct writing system that is able to write high resolution arbitrary binary and grey scale structures on rotationally symmetric surfaces with a slope angle of up to 15°.
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تاریخ انتشار 2012