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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。 K{.s{;#  
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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。 \HLI y  
    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 Rn~FCj,-  
    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 qb(#{Sw0  
    Normalize the map data to the total emitted flux from all sources. .w/#S-at  
    This option allows you to have the flux and irradiance normalized to the total >C y  
    emitted flux. When this box is checked, TracePro divides the values in the r`XIn#o  
    irradiance map and the total flux by the emitted flux. This is especially useful for |7]7~ 6l  
    calculating system transmittance for an optical system, or lighting efficiency for a WXu:mv,'e  
    lighting calculation. tW53&q\=  
    Example 1: System Transmittance UMwB.*  
    Suppose you need to calculate the system transmittance of an optical system. 7)$U>|=  
    You would probably use the grid raytrace option, and the emitted flux is equal to 0cZyO$.  
    the sum of the flux in all the emitted rays. When you display an irradiance map, ;l> xXSB7$  
    the system transmittance is equal to the total flux, displayed at the bottom of the $fhrGe  
    irradiance map window, divided by the emitted flux. To get the system Dww]D|M  
    transmittance, check the Normalize to emitted flux box and press the Apply @;kw6f:{d  
    button. The map will be redisplayed, and the Normalized Flux value will be equal q9.)p  
    to the system transmittance. au7%K5  
    Example 2: Lighting Efficiency (Z5=GJM?$  
    Suppose you need to calculate the lighting efficiency of a luminaire in illuminating F{)YdqQ  
    a plane. You would probably choose the Surface Source raytrace option, and the 2 P+RfE`o  
    emitted flux is equal to the flux you specified when you defined the sources. When ;Q&38qI  
    you display an irradiance map, the total flux incident on the observation plane is u8qL?Aj^  
    displayed at the bottom of the window. The lighting efficiency is equal to the total O-Hu:KuIf  
    flux divided by the emitted flux. To get the lighting efficiency directly, check the {9U<!  
    Normalize to emitted flux box and press the Apply button. The map will be /Y5I0Ko Uw  
    redisplayed, and the Normalized Flux value will be equal to the lighting efficiency 'EU{%\qM  
    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?