کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
734212 | 893401 | 2008 | 7 صفحه PDF | دانلود رایگان |
Broad flat field laser scanning is critical to the success of laser material processing, used in techniques such as rapid prototyping & manufacturing (RP&M) and micro-machining. For these techniques it is necessary to produce high-performance optical systems that can fulfill the need for a smaller focused spot size over broad, flat field scanning areas. This paper concentrates on the issues of defocus error compensation. A dynamic focusing system is designed, intended primarily for broad flat field galvanometric laser scanning applications. Key technologies are described in detail; corresponding solutions have been used to design and produce a CO2 infrared optical focusing system, which is capable of scanning a focused spot size of 120 μm or less over areas up to 500 mm2.
Journal: Optics & Laser Technology - Volume 40, Issue 2, March 2008, Pages 330–336