去年國際光學(xué)設(shè)計的照明問題。 *t_"]v-w  
轉(zhuǎn)載自： http://iodc.info/illumination-design-problem/39-problems/58-2010-illumination-design-problem #Az#dt]H  
有興趣的同好可以看看。光行壇有人參加嗎？ JCL+uEX4S  
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Problem description: ^]x%z*6  
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Transfer maximum monochromatic flux from a 1-mm-square Lambertian source in air to an equal-etendue nonimmersed target. The target surface is rectangular with a 16:9 aspect ratio. The surface area of the target must be at least 4 mm². The target is defined such that only rays incident on the target surface at angles of θmax or less, relative to the surface normal, are considered to be within the phase space of the target, where the value of θmax is determined by the equal-étendue requirement. =bn
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Problem design degrees of freedom: {2|[7oNT6  
Can be any combination of idealized refractive and reflective components. k,)xv?  
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Assumptions and constraints j`fQN  
The only media allowed are air (index of 1) or dielectrics with refractive index in the range 1.33 - 1.59. D'{NEk@  
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The coupling efficiency will be computed in the geometrical optics approximation using 100,000 pseudo-randomly generated rays. Optical losses produced by the following material characteristics will be included in the efficiency computation: [ " n+2;  
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Mirror reflectivity = 95% at all angles. rV yw1D  
TIR reflectivity = 100% at all angles. nFRU-D$7  
Bulk absorption loss for all dielectric materials = 0.5% per cm. YY!Lv:.7>  
Fresnel losses at air-dielectric interfaces = 2% at all angles. 2#<)-Cak  
Fresnel losses between two different dielectric interfaces = 0.2% at all angles. sj;n1t}$S  
No Fresnel losses within a gradient index material. FU{$oCh/5  
Minimum size of a component and edge thickness = 0.1 mm. 定陶县| 繁昌县| 五河县| 突泉县| 郴州市| 东丽区| 延川县| 会东县| 双鸭山市| 于都县| 奈曼旗| 澄江县| 称多县| 二手房| 陇西县| 吉林省| 龙岩市| 安丘市| 霍州市| 建昌县| 江陵县| 淮阳县| 达日县| 普格县| 章丘市| 东明县| 琼结县| 仁怀市| 额敏县| 应用必备| 石景山区| 临安市| 高密市| 多伦县| 桃江县| 襄汾县| 云龙县| 日喀则市| 罗源县| 石家庄市| 疏勒县|