又是一款(透镜)的SF,也些你看过......
<P><img src="attachments/dvbbs/2005-7/200571114384811931.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/2005-7/200571114384811931.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><BR><img src="attachments/dvbbs/2005-7/20057111439989257.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/2005-7/20057111439989257.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><BR></P> 据说叫什么“非成像透镜”?? <P>咦,蛮漂亮的嘛</P> <P>非成像透镜----????咩意思?????</P><P>请教</P> 新U2不是有几张图了,是透镜的…… 非成像透镜就是沿镜片轴心从内往外,各处在设定镜片表面曲率时,按不同的焦距设定。这样发光体通过镜片聚焦后,没有一个单一的焦点,总有一大部分是散焦的。这样,形成一个扩大了的,圆形的,模糊的光斑,而不会把灯丝,或LED中的发光体投影出来。
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