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小弟这段时间DIY了一台投影机,具体参数如下:
1、3.5寸液晶屏(640X480 、100万像素);
2、光源:欧斯朗150W金卤灯;
3、投影幕:84寸国产波珠幕;
4、镜头:150MM三片式镀膜镜头。
5、流明系数。。。。。。。。。。(不明)。
制作过程:
小弟偶然在网上看到有关投影机DIY的网站,一时冲动就买了制作投影机的材料来。
但一直没时间搞,到了这两个月才有空拿出来搞。
最先是用旧的电脑机箱改装的。因为没经验,刚出来的图象非常模糊。后来经过反复的调试,发现屏幕跟镜头的距离很重要(现在两者的距离为12CM)同时把灯室跟非镜的距离拉近(这样可以增加亮度)。一直到投射出满意的图象后,就把有关的数据记下,准备更换机箱。
在寻找合用的机箱时亦令我大伤脑筋,后来在某天经过陶街见到有处理敷铜板大甩卖,就灵机一动(用敷铜板做)。跟着就去大德路买了几米铝角条用来做骨架。在制作过程中发现真的很好用。当机箱做好后就马上把所有的DD装进去。
开机。。。。。。。。。。。发现液晶屏被严重干扰,查了很长一段时间也找不到原因。后来在处理旧电脑机箱猛然想起当初金卤灯的镇流器、电容及触发器是装在电脑电源盒里的,后来因为省事而没用电源盒来装。发现这问题后马上改进,但还是有一点波纹干扰,这次差点就放弃了。好在皇天不负有心人,最后发现问题原来出在接地上,当把接地搞好好,一切正常。
原先打算直接投在墙上的,但新居的墙刷的是米黄色的涂料,出来的效果比较差,咬咬牙!花几旧水买了张国产的波珠幕,哗!正啊!
虽然制作的过程中遇到很多问题,但都能一一解决,并从中学到了不少DD!
现将有关图片上载,请各位大哥指教,谢谢!
一、投影机正面:
DIY投影机(参赛)
二、投影机背面:
DIY投影机(参赛)
三、投影机侧面(灯室散热风扇):
DIY投影机(参赛)
四、液晶及散热风扇共用的开关电源及液晶散热风扇:
DIY投影机(参赛)
五、液晶屏:
<img src="attachments/dvbbs/2005-11/20051119455952.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/2005-11/20051119455952.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
六、非镜(用于把光源聚焦过来的灯光均匀地照射到液晶屏上):
<img src="attachments/dvbbs/2005-11/200511194943691.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/2005-11/200511194943691.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
七、效果图(一):
<img src="attachments/dvbbs/2005-11/200511195531395.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/2005-11/200511195531395.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
八、效果图(二):
<img src="attachments/dvbbs/2005-11/2005111165230446.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/2005-11/2005111165230446.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
九、效果图(三):
<img src="attachments/dvbbs/2005-11/2005111165356455.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/2005-11/2005111165356455.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
十、效果图(四):
<img src="attachments/dvbbs/2005-11/2005111165440102.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/2005-11/2005111165440102.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
十一、效果图(五):
<img src="attachments/dvbbs/2005-11/2005111165519995.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/2005-11/2005111165519995.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />[upload=jpg]
十二、效果图(六):
<img src="attachments/dvbbs/2005-11/200511282541362.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/2005-11/200511282541362.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
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