In this study, we explored the design of improved road lighting for drivers and pedestrians using ray-tracing and reverse ray-tracing methods. Conventional road lighting often poses issues such as glare and unevenly illuminated areas, which can compromise safety and efficiency. These problems stem from traditional design approaches focused solely on achieving high luminance and electrical power. However, our research shows that higher brightness or power consumption does not necessarily equate to better road lighting. By applying ray-tracing techniques, we aimed to design a reflector that enhances visibility while being easier on the eyes of both drivers and pedestrians. Our optimized reflector design demonstrated significant improvements in both central and average illuminance levels, all while reducing energy consumption. This study suggests that careful reflector design is crucial for creating safer and more energy-efficient road lighting solutions.

Abstract
1. 서론
2. Theory
3. Simulation and results
4. Conclusion
References

• 오영식(Graduate School of Energy Engineering, Dong-Shin University) | Young-Sik Oh
• 김동묵(Graduate School of Energy Engineering, Dong-Shin University) | Dong-Mook Kim
• 이용주(Graduate School of Energy Engineering, Dong-Shin University) | Yong-Ju Lee
• 김봄(Graduate School of Energy Engineering, Dong-Shin University) | Bom Kim
• 이정연(Graduate School of Energy Engineering, Dong-Shin University) | Jeong-Youn Lee
• 차인수(Graduate School of Energy Engineering, Dong-Shin University) | In-Su Cha Corresponding author