专利内容由知识产权出版社提供
专利名称：Method and device for prevention of
adhesion of dirt and contamination onoptical parts in laser beam machine
发明人：Naoaki Fukuda,Akikazu Kitagawa,Takashi
Kawahara
申请号：US10507718申请日：20030314
公开号：US2005020A1公开日：20050922
专利附图：
摘要：In a laser machining system, gas is injected while air is inducted from the rear of
a plurality of injection nozzles () disposed in the space between the machining head () andthe workpiece (M) and disposed at stipulated intervals in the direction in which the laserlight passes, so as not to disturb the machining gas, thus preventing the adhesion of dustarising during laser machining to optical components () within the head (). A light receptor() that receives light reflected or dispersed due to adhered contamination is disposedupstream of the optical components () within the head (), and a determination part ()compares the light reception value against a preset threshold value.
申请人：Naoaki Fukuda,Akikazu Kitagawa,Takashi Kawahara
地址：SUMINOE-KU, OSAKA 559-8559 JP,Osaka JP,Osaka JP
国籍：JP,JP,JP
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