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时间:2019-05-29
《激光内雕(新)》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、穿透的魅力—激光内雕«激光原理及应用»课题探讨穿透的魅力——激光内雕课题:激光内雕班级:姓名:14穿透的魅力—激光内雕摘要玻璃激光内雕技术的发展经历了传统的白色激光内雕和现代的着色激光内雕两个阶段。传统的白色激光内雕是通过在激光聚焦点的光强超过玻璃的损伤阈值而产生炸裂形成微裂纹,利用微裂纹对光的散射实现三维白色内雕。本文主要介绍了有关激光内雕的发展、原理、技术、激光谐振腔、激光内雕机、发展前景等方面。关键词:激光内雕激光内雕机激光谐振腔14穿透的魅力—激光内雕目录:1.引言·····················
2、·········································42.激光内雕的发展····················································43.激光内雕的原理····················································43.1激光内雕的基本思想·············································43.2白色激光内雕的原理························
3、·····················53.3激光单色着色机理···············································63.4激光多色着色机理···············································74.激光内雕中特殊构型—电光调QNd:YAG激光腔的研究··················85.水晶雕刻之魂——激光内雕机········································95.1激光内雕机工作机理与技术··
4、····································95.2雕刻过程中出现的问题及解决方案································106.论激光内雕技术···················································126.1激光内雕技术的可行性·········································126.2激光内雕的发展展望·········································
5、··127.参考文献14穿透的魅力—激光内雕·························································1314穿透的魅力—激光内雕1.引言在水晶礼品的柜台前,经常看到一些内部雕刻有一些图案的玻璃、水晶工艺品,欣赏着这些璀璨夺目、晶莹别透的水晶制品,很多人纳闷,这些图案是怎么雕刻进去的呢?其实,通常见到的工艺品大多不是真正的水晶,而是人造水晶。“激光”则是对人造水晶(也称“水晶玻璃”)进行“内雕”最有用的工具。那么接下来就给大家介绍一些有关激光内雕产品及技术,一
6、起揭开这些水晶工艺品神秘的面纱……2.激光内雕的发展激光内雕指的是对水晶等玻璃制品表面及体内文字、图形、图像的雕刻。其制作的各类水晶玻璃工艺品具有晶莹剔透、冰清玉洁超凡脱俗的视觉形象,浸透出高贵典雅的艺术魅力。作为一代新型的工艺技术,其经历了如下发展阶段:第一阶段:内雕机是灯泵式白光机,内雕行业所谓的白光就是肉眼见不到的1064nm的红外光,这个波长的光能够用于内雕,但点子过于粗大使内雕的效果比较粗糙,因此图案的分辨率不高。第二阶段:后经研究发现,1064nm的倍频光532nm在雕刻效果方而优于白光机,而且532n
7、m的绿光在可见光范围内易于调节,只是多一个倍频晶体而已。因此,在很短的时间内绿光机取代了白光机,进入了内雕加工工业。第三阶段:随着半导体激光器的发展和应用,灯泵机与半导体泵浦激光内雕机相比,半导体泵浦激光器的优势越来越明显,具体体现如下:(1)灯泵机耗材多,调节麻烦。(2)灯泵机速度慢。普通的灯泵机能量低,频率只能达到200Hz左右,理论最高速度12000/min要达到较高频率,只能增加灯功率,但会导致散热不足。而半导体激光器的光光转换效率高,能量高,频率能够达到几千赫兹。现阶段:应用在激光内雕行业的半导体激光器主
8、要分2类:电光调Q激光器和声光调Q激光器。a.电光调Q方式:由于脉宽窄,峰值功率高,每个脉冲都会达到水品的爆炸点,因此一般的玻璃(钢化玻璃除外)都能打进去,主要应用于水晶内雕行业。但在高频条件下电光调Q不够稳定,其频率一般不超过1000Hz。b.声光调Q方式:峰值功率不高,水晶有杂质部分就可能因为峰值功率达不到爆炸点而漏点,而且,就算对于纯度非常高的水晶,激
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