问多星 发表于 2005-10-17 08:24

前天做的3W 1AA体积的 LED手电筒

<P>前天做的3W 1AA体积的 LED手电筒 <img src="attachments/dvbbs/2005-10/200510170193419983.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/2005-10/200510170193419983.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><BR><img src="attachments/dvbbs/2005-10/200510170202052945.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/2005-10/200510170202052945.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></P>
<P>距离墙壁0.5m的效果图:<BR></P>
<P><img src="attachments/dvbbs/2005-10/200510170214093009.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/2005-10/200510170214093009.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></P>
<P>距离墙壁1m的效果图:<BR></P>
<P><img src="attachments/dvbbs/2005-10/200510170231528026.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/2005-10/200510170231528026.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><BR>距离墙壁4m的效果图: </P>
<P><img src="attachments/dvbbs/2005-10/20051017024781214.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/2005-10/20051017024781214.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></P>
<P>有兴趣的朋友QQ116790367加我聊 加时说:LED手电筒哦 本人每天晚上6:00到次日凌晨2:00都在线<BR></P>

killerwc 发表于 2005-10-17 20:18

用的是锂电直驱吧，不然没那么亮

czzmark 发表于 2005-10-17 20:22

问多星 发表于 2005-10-18 00:51

<P>是用锂电加0.5欧姆电阻的</P>

7522980 发表于 2005-10-18 04:14

这个散热行吗？

Guikor 发表于 2005-10-18 15:14

问多星 发表于 2005-10-19 05:03

<P>说实在的这个点了时间长了筒身确实有点热，体积小就是会有点热的。</P>
<P>筒身是铝合金的 是1AA普通灯泡的手电筒改的 外貌不气派 但效果还凑合</P>
[此贴子已经被作者于2005-10-18 21:04:59编辑过]

asdf303 发表于 2005-10-20 05:32

<P>是用1AA驱动吗，强！</P>

问多星 发表于 2005-10-20 06:24

当然不是1AA全世界目前也造不出1AA能通过电路驱动3W的LED 满负荷工作的,就算有的话 效率超级低下 续航时间极短,最多就能点个几分钟就熄火了 没什么实用价值 除非是电池能得到改进呵呵 是1AA的手电筒改的 电池是14500锂离子电池 电路是0.5欧姆贴片电阻 呵呵
[此贴子已经被作者于2005-10-19 22:27:47编辑过]

问多星 发表于 2005-10-21 03:30

<P>贴片的易断吗?哦......这个我到不是很清楚 学到了,那我就用704封灌总可以了吧</P>
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