Beam shaping optics for YAG laser by using CNC lathe

被引：0
|
作者：
Kuwano, R [1 ]
Tokunaga, T [1 ]
Kataoka, Y [1 ]
机构：
[1] Fukuyama Polytech Coll, Mech Engn Sect, Fukuyama, Hiroshima 7200074, Japan
来源：
OPTOMECHATRONIC SYSTEMS IV | 2003年 / 5264卷
关键词：
laser; beam shaping; aspherical lens; beam profile; CNC lathe;
D O I：
10.1117/12.516270
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
A method for abeam shaping optics is proposed to convert a laser beam profile into required intensity distribution. A beam shaper with aspherical surface is calculated by Snell's law converted from measured irradiate beam profile to required profile. An acrylic resin is cut by a ball type grinding wheel consisted on diamond powder and polished by a cone type felt buff with alumina ceramics powder. A CNC lathe is used to control these tools position. A shaper with 4mm of thickness works to convert multi-mode beam profile with 13mm of diameter into a flat top cylinder with I mm of diameter. Its working distance is 60mm. Its transmittance is over 98%. It suceed to generate uniform melting mark of 0.6mm diameter on the steel target by YAG laser process.
引用
收藏
页码：237 / 240
页数：4
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