21bao 发表于 2004-9-18 18:59:00

激光应用问题请教

请问：市面上销售的激光指示笔，里面配的各种图案的激光头，工作原理是什么？一般是由什么单位设计制作的啊？复杂吗？

21bao 发表于 2004-9-19 18:15:00

就是这些东西

<P><img src="data/attachment/forum/dvbbs/2004-9/20049191013159.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'data/attachment/forum/dvbbs/2004-9/20049191013159.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></P>
<P>激光笔
<img src="data/attachment/forum/dvbbs/2004-9/2004919101320468.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'data/attachment/forum/dvbbs/2004-9/2004919101320468.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></P>
<P>图案一</P>
<P><img src="data/attachment/forum/dvbbs/2004-9/200491910141512.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'data/attachment/forum/dvbbs/2004-9/200491910141512.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
图案二</P>
<P> <img src="data/attachment/forum/dvbbs/2004-9/2004919101455417.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'data/attachment/forum/dvbbs/2004-9/2004919101455417.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></P>
<P>图案三</P>
<P> </P>
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