终于成功地diy了一个2AA的头灯
<P>原来的头灯是2AA灯泡的，这两天心血来潮，改装成了1W的led头灯，可惜散热片找不到合适的，弄得很是难看</P><P>电池端电流是200-300Ma,led用的是阿武那里的仿3瓦，3瓦工作实在是太热了，再加上驱动电路本来就是一瓦的，就索性降功率使用了，第一件产品，实在是舍不得装上ls阿！</P>
<P>集成块用的是在网上买的8505</P>
<P>看图：</P>
<P>电路测试</P>
<P><img src="attachments/dvbbs/2005-10/200510110515119355.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(\'attachments/dvbbs/2005-10/200510110515119355.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><BR>一节电池也能亮，就是暗了一点，不过没有照片差距这么明显</P>
<P><img src="attachments/dvbbs/2005-10/20051011054961855.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(\'attachments/dvbbs/2005-10/20051011054961855.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><BR>考虑是头灯，对聚光要求不是那么强，所以用了透镜</P>
<P><img src="attachments/dvbbs/2005-10/200510110545555242.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(\'attachments/dvbbs/2005-10/200510110545555242.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><BR>点亮</P>
<P><img src="attachments/dvbbs/2005-10/200510110551686446.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(\'attachments/dvbbs/2005-10/200510110551686446.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><BR>光斑，大约1米多点</P>
<img src="attachments/dvbbs/2005-10/200510110553353800.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(\'attachments/dvbbs/2005-10/200510110553353800.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><BR>欢迎大家排砖 DIY！~就是支持~ 支持~ 顶起。。 咿呀~~~~~漂亮！！！我看看考虑也弄一个 一个建议 就是把透镜直接固定在镜片上，因为LED的热量会烤化热融胶的 固定在led上会掉下来的 <P>3w的当做1W来用了，不会有那么高的热量了吧。不过我倒真的一直担心散热不够，不敢长时间的使用。其实只有0.72w</P>
<P>我还不知道怎么才能让他更大功率的运转</P> <DIV class=quote><B>以下是引用<I>KK</I>在2005-10-1 14:12:40的发言：</B><BR>支持~</DIV>
<br> <P>用8505并联。。。。</P> 来个灯头特写，主要是PP. <P>8505并联的话不知道电路该怎么变化，只是简单的并联应该不行吧。电容电感是不是都要改呢？</P>
<P>头灯的PP是那个部分呢？</P>
<P>图上用的是网线吧，电路效率多高？</P>
<P>楼主把两个电路并联使用，</P>
<P>看输出功率是不是提高了。</P> 支持，好像不是 IC升压？ <P><FONT color=#f70909>头灯的PP是那个部分呢？</FONT></P>
<P><FONT color=#000000>PP=屁屁.哈哈</FONT></P> 头灯还是用灯杯好点，泛光有利于观察，相反，透镜的聚光是比光杯要好。 <P>diy！支持！！ 就是担心你那个热融胶，会化的</P>
<P>再说也太难看了．做个支架会好一点．</P> 为什么没有人做18650的3W头灯啊？既然电池盒是分离式的，用18650比AA爽多了，再说用三节AA比用两节AA好吧？
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