准备装镁光2C上的52mm投影机反光碗做的投射系统
找到一个52mm的投影机反光碗，在上面倒扣一颗LED，组成一个可以装入镁光头部的投射系统，投影机反光碗的多层镀膜能最大限度的反射可见光，出来的光斑是一个方块，光斑的大小比10度透镜出来的光斑还小三分之一左右，也有泛光。<img src="attachments/dvbbs/2005-11/2005111012434113064.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/2005-11/2005111012434113064.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br><img src="attachments/dvbbs/2005-11/2005111012463112510.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/2005-11/2005111012463112510.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br>一块2mm的铝板，用我的打磨工具给切割成这个样子，花了好几个小时。<img src="attachments/dvbbs/2005-11/2005111012522335851.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/2005-11/2005111012522335851.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br><img src="attachments/dvbbs/2005-11/2005111012544781066.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/2005-11/2005111012544781066.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br><img src="attachments/dvbbs/2005-11/2005111012563398821.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/2005-11/2005111012563398821.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br><img src="attachments/dvbbs/2005-11/2005111012582133948.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/2005-11/2005111012582133948.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br>[此贴子已经被作者于2005-11-10 12:58:49编辑过]
<P>光线利用率蛮高的</P> 满漂亮！！ 不错，有创意的。 <P>拷!高手啊,我前几天开始求的,你已做出来啦?</P>
<P>建议超频,并加热管.</P>
<P>试试不?</P> 有兴趣，热管什么样子，先发上来看看。 <STRONG><FONT face=Verdana>jhbhb：你是把很多想法付于实践了。嗨！我的工作岗位... ...</FONT></STRONG> 52MM的反光碗出来光斑的大小比10度透镜出来的光斑还小三分之一.真是难以想象.光柱感一定很强 <P>老大这个效果比较了怎么样,希望比传统反光杯或者透镜亮度和距离上有质的飞跃!</P> 光柱感是很强，哪天有空做仔细点再试试。 <P>这么好的帖子别沉了.顶一个先.</P>
<P>另外前面能装玻璃镜片吗?长时间续航老大试试,装镜片后我担心散热的问题.</P> 这个碗是透明的？ 能装玻璃,而且这个尺寸应该可以刚好装入2C,不过我没试过.长时间点亮散热不行,这点铝太单薄了,下次做个厚点的铜底座试试. <P>碗是玻璃的,投影机的反光碗好像是可以反射可见光,而让红外线什么的透过,所以点亮的时候看上去有点透明</P> <P>碗是拆机的还是买的？那个光斑是精确调焦后的最小光斑？</P>
<P>对度数俺们没有概念，一般是多少米外多大直径，下回这么描述好吗</P> 在淘宝上买新的,40-50元一个,下次做好铜座后再测试一下. <P>我就没想到这个帖子里是说这个的一直没进来，这正是我梦寐以求的倒置反光，关于散热也许可以参考一下下边的</P>
<P><a href="http://www.shoudian.org/dispbbs.asp?boardid=30&replyid=87572&id=16593&page=1&skin=0&Star=2" target="_blank" >http://www.shoudian.org/dispbbs.asp?boardid=30&replyid=87572&id=16593&page=1&skin=0&Star=2</A></P>
<P>能不能PM一下反光碗的购买地址？</P> <P>在淘宝上搜索"投影机 反光碗",就能找到,我忘了那家买了.</P> <P>不用那么复杂的吧。。。。</P>
<P>光碗不但能放射光 还能反射热啊 把它做成更适合反射辐射热的结构不就好了 又简单又方便的</P>
[此贴子已经被作者于2006-3-10 22:43:11编辑过]
是不是用镀铝的反光碗更好一些？
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