Modeling of lamps through a diffuser with 2D and 3D 'picket-fence' backlight models

机译：通过带有2D和3D“小围栏”背光模型的漫射器对灯进行建模

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Laboratory photometric measurements are taken of a display backlight one metre away from the emission surface (diffuser) with a whole acceptance angle on the photometer of about 0.125 degrees (2.182mm spot size at emission surface). A simulation method was sought to be able to obtain the brightness uniformity (luminance peak to trough ratio from above one lamp to the null between lamps in a picket-fence backlight). A 3D raytrace Backlight model in TracePro[1] and a 2D Mathematical model in Matlab[2] have been developed. With a specimen backlight in the laboratory, a smooth luminance profile was measured by the photometer on the diffuser surface. Ray Trace models in both 3D and 2D take too long to produce smooth 'continuous filled' distributions. The Mathematical 2D approach, although with limitations, yielded smooth solutions in a very reasonable time frame.

机译：在离发射表面（漫射器）一米处的显示器背光进行实验室光度测量，在光度计上的整个接收角约为0.125度（发射表面光斑大小为2.182mm）。寻求一种模拟方法以能够获得亮度均匀性（在栅栏式背光源中，从一个以上的灯到灯之间零点的亮度峰谷比）。已经开发了TracePro [1]中的3D光线追踪背光模型和Matlab [2]中的2D数学模型。在实验室中使用样本背光，通过光度计在漫射器表面上测量了平滑的亮度曲线。 3D和2D中的Ray Trace模型花费的时间太长，无法生成平滑的“连续填充”分布。二维数学方法虽然有局限性，但在非常合理的时间内得出了平滑的解决方案。

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《Conference on Cockpit Displays IX: Displays for Defense Applications, Apr 2-5, 2002, Orlando, USA》|2002年|p.189-201|共13页
会议地点 Orlando FL(US)
作者
Richard J. Belshaw; Roger Wilmott; John T. Thomas;
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Dynamics Canada, 3785 Richmond Rd, nepean, Ont., Canada, K2H 5B7;

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正文语种 eng
中图分类无线电电子学、电信技术;
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Modeling of lamps through a diffuser with 2D and 3D 'picket-fence' backlight models

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