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A Low-cost Optimization Design for Minimizing Chromatic Aberration by Doublet Prisms
Wen-Shing Sun,Chuen-Lin Tien,Ching-Cherng Sun,Ching-Chun Lee 한국광학회 2012 Current Optics and Photonics Vol.16 No.4
A low-cost optimal double-prism method is proposed by using the developed MATLAB program to correct chromatic aberration. We present an efficient approach to choose a couple of low-cost glasses to obtain a low aberration double prism. The doublet prisms were made of two lead-free glasses. The relative partial dispersion of the two lead-free glasses is identical and their Abbe numbers are different greatly. The proposed design aims to minimize chromatic aberration, such as in apochromats, for paraxial ray tracing. Finally, an optimization design for real ray tracing can be evaluated by the chromatic aberration curve with a minimal area.
Wen-Shing Sun,Chuen-Lin Tien,Jui-Wen Pan,Tsung-Hsun Yang,Chih-Hsuan Tsuei,Yi-Han Huang 한국광학회 2013 Current Optics and Photonics Vol.17 No.5
The design of the LEDs lighting in general household illumination was proposed and compared with the fluorescent lighting in this study. Using the LED as a light source would promote energy saving lighting for household illumination purposes. We used the LightTools and DIALux software to design and simulate different standards of illuminance, different correlated color temperatures and different color rendering indices for household environments. The power consumption and efficiency of traditional illuminated light sources and an LED light source with the same standard of illuminance for lighting the household environment were analyzed and compared with each other. Finally, our results show the advantages of using white-light LEDs for lighting and household illumination.