CRCR 发表于 2005-7-11 22:38

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>

sqwin 发表于 2005-7-12 19:44

据说叫什么“非成像透镜”??

junfeixu 发表于 2005-7-12 22:53

<P>咦,蛮漂亮的嘛</P>

torpedoooo 发表于 2005-7-22 16:38

<P>非成像透镜----????咩意思?????</P>
<P>请教</P>

DIABLO 发表于 2005-9-26 06:31

新U2不是有几张图了,是透镜的……

KLOP 发表于 2005-9-27 07:26

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。
页: [1]
查看完整版本: 又是一款(透镜)的SF,也些你看过......