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    [原创]lighttools背光模拟 [复制链接]

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    离线成龙
     
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    只看楼主 倒序阅读 楼主  发表于: 2009-05-14
    初上手lighttools做背光贴几个图大家看看大家给点建议: NnLhJPh  
    >}DjHLTW\  
    %rDmW?T  
    sb|3|J6=  
       vbA7I<;  
    交流探讨QQ:859504158 {nPkb5xbW  
    希望大家都多给点意见
    1条评分
    doucan 金钱 +5 - 2009-05-14
     
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    只看该作者 1楼 发表于: 2009-05-18
    欢迎广大背光朋友提出见解!!!
    离线cheering
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    只看该作者 2楼 发表于: 2009-05-20
    我不是做背光的,对背光也不太了解 //X e*0  
    我想请教一下,做背光和做一般照明的区别。 P34LV+e  
    ^p"4)6p-W  
    谢谢!
    离线myjobpeter
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    只看该作者 3楼 发表于: 2009-07-15
    还不错,挺均匀,不过真够亮的
    离线yanglm
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    只看该作者 4楼 发表于: 2009-08-13
    我也是做背光的,不知为什么,借用一下楼主的图说明一下问题,得到的总是发光强度的分布,不像楼主是照度的分布,请大家指点。。。
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    只看该作者 5楼 发表于: 2009-08-13
    新手 看不懂哦
    离线barryrao
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    只看该作者 6楼 发表于: 2009-08-13
    学习中.........
    离线成龙
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    只看该作者 7楼 发表于: 2009-08-28
    你可以建立空间亮度接受器!!
    离线chengipx
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    只看该作者 8楼 发表于: 2009-09-04
    学习一下。。
    离线成龙
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    只看该作者 9楼 发表于: 2009-09-15
    How Many Rays Do I Need for Monte Carlo Optimization?  %)pP[[h  
    While it is important to ensure that a sufficient number of rays are traced to g93I+  
    distinguish the merit function value from the noise floor, it is often not necessary to e&d3SQ%  
    trace as many rays during optimization as you might to obtain a given level of Kn']n91m  
    accuracy for analysis purposes. What matters during optimization is that the <e'P%tG'  
    changes the optimizer makes to the model affect the merit function in the same way :FnOS<_B  
    that the overall performance is affected. It is possible to define the merit function so 6H0W`S0a  
    that it has less accuracy and/or coarser mesh resolution than meshes used for {5SfE$r  
    analysis and yet produce improvements during optimization, especially in the early + Qt[1Xq  
    stages of a design. P?uf?{  
    A rule of thumb for the first Monte Carlo run on a system is to have an average of at Y mq3ty]Pe  
    least 40 rays per receiver data mesh bin. Thus, for 20 bins, you would need 800 rays \ 0D$Mie  
    on the receiver to achieve uniform distribution. It is likely that you will need to |-|jf  
    define more rays than 800 in a simulation in order to get 800 rays on the receiver. e[s5N:IUd3  
    When using simplified meshes as merit functions, you should check the before and >&BrCu[u  
    after performance of a design to verify that the changes correlate to the changes of H\ 3M  
    the merit function during optimization. As a design reaches its final performance ~NxEc8Y  
    level, you will have to add rays to the simulation to reduce the noise floor so that iu +3,]7Fm  
    sufficient accuracy and mesh resolution are available for the optimizer to find the !;i*\ a  
    best solution.