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    [求助]请教:Tracepro中照度图选项中选择归一化和不选择归一化选项有什么区别? [复制链接]

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    离线ruskie
     
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    只看楼主 倒序阅读 楼主  发表于: 2008-05-10
    Tracepro照度图选项中有一项“Normalize to emitted flux”,选择和不选择的情况出来的照度图有什么区别?哪位能详细解答一下。 j1sZRl)D  
     
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    离线suezl9
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    只看该作者 1楼 发表于: 2008-05-12
    说明书:规范从所有发光源发出的所有出射通量给图的数据,这个选项允许你使通量和光照规范为总共的通量,如果这个框被选中后,TracePro在光照度图中使用出色通量来除以总通量。这对于在光学系统计算的系统透射率和照明系统中计算发光效率,会非常有用。 1J tt\yq  
    也就是说,比如你的总光源有10lm,得出的照度图在没有选择norm~选项的时候是显示正常的照度,在勾选了之后显示的照度值是原来的/总流明,可以认为是没流明所产生的照度值
    离线ruskie
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    只看该作者 2楼 发表于: 2008-05-13
    谢谢版主的耐心解答,^_^
    离线qiudonglai
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    只看该作者 3楼 发表于: 2008-08-19
    suezl9 {&bjjM  
    哈哈
    离线norrin
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    只看该作者 4楼 发表于: 2008-08-21
    有中文说明书么?可以共享一下么?
    离线lightgirl
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    只看该作者 5楼 发表于: 2008-08-22
    Normalize (pU@$H  
    Normalize the map data to the total emitted flux from all sources. re$xeq\1P?  
    This option allows you to have the flux and irradiance normalized to the total V\!6K  
    emitted flux. When this box is checked, TracePro divides the values in the s5 P~feg  
    irradiance map and the total flux by the emitted flux. This is especially useful for KliMw*5(  
    calculating system transmittance for an optical system, or lighting efficiency for a " 0:&x n8L  
    lighting calculation. eL vbPE_  
    Example 1: System Transmittance tJ_6dH8Y  
    Suppose you need to calculate the system transmittance of an optical system. N>+s8L.?  
    You would probably use the grid raytrace option, and the emitted flux is equal to 3>+9Rru  
    the sum of the flux in all the emitted rays. When you display an irradiance map, =}$YZuzmU  
    the system transmittance is equal to the total flux, displayed at the bottom of the G>>`j2:y  
    irradiance map window, divided by the emitted flux. To get the system N 9.$--X}D  
    transmittance, check the Normalize to emitted flux box and press the Apply rmzM}T\20  
    button. The map will be redisplayed, and the Normalized Flux value will be equal fW'@+<b  
    to the system transmittance. GW29Rj1  
    Example 2: Lighting Efficiency S m%\,/3  
    Suppose you need to calculate the lighting efficiency of a luminaire in illuminating {D6E@a  
    a plane. You would probably choose the Surface Source raytrace option, and the vLc7RL  
    emitted flux is equal to the flux you specified when you defined the sources. When v}Gpw6   
    you display an irradiance map, the total flux incident on the observation plane is HkP')= sa  
    displayed at the bottom of the window. The lighting efficiency is equal to the total :nt 7jm,  
    flux divided by the emitted flux. To get the lighting efficiency directly, check the 5)T=^"IHXi  
    Normalize to emitted flux box and press the Apply button. The map will be E!,+#%O>  
    redisplayed, and the Normalized Flux value will be equal to the lighting efficiency V[w Y;wj  
    of the luminaire.
    离线kaoyanming
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    只看该作者 6楼 发表于: 2015-06-02
    可以看成均匀性吗?