<P>做了一个手提灯,12v/7AH电瓶(旧的,摩托车上拆下来的)驱动,使用50w佛山照明的卤素灯杯(4元一个),总造价不超过30元(不计电瓶,包括充电用变压器),总质量约3公斤,好了,废话少说,上图</P>
<P><img src="attachments/dvbbs/2005-7/200572015251190749.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/2005-7/200572015251190749.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></P>
<P>图中各个部件就不用我解释了吧,大家都能看懂[em135]</P>
<P>光斑图(白天照的,大家将就一下)</P>
<P><img src="attachments/dvbbs/2005-7/200572015302327941.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/2005-7/200572015302327941.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></P>
<P>说明:光圈F3.5,快门1/45s,照射距离1米,光斑直径80厘米,中心有暗斑</P>
<P>最后上个灯头特写 </P>
<P><img src="attachments/dvbbs/2005-7/20057201534474017.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/2005-7/20057201534474017.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></P>
<P>刚充满电时,灯泡很亮(电压13.5v),半分钟后亮度下降至正常水平(电压11.5v),连续点了约半小时后,接着的10分钟内亮度下降很快,怕过放停止测试</P>
<P>最近有很多桶友都想用卤素插脚灯做大功率手电,因为反光碗不好找,又想到用卤素灯杯做,因此我先做一个,让大家参考参考</P>
<P>还想提醒大家的是,如果想用卤素灯杯做手电的话,灯杯的光束角度一定要小,不然光线一出来就是一大片,只能当工作灯用了</P>
<P>佛山照明有一款型号MR11 FTA的12v/12w/35mm光杯直径/2000小时寿命的低电压反光杯灯,光束角度7度,很适合拿来做手电,就是买不到[em130]</P>
[此贴子已经被作者于2005-7-20 16:02:37编辑过]
|