Improvement of the detection sensitivity uniformity of an indoor light screen array measurement system with large field of view angle using multi-lens splicing

摘要

The research addresses an effective method based on multi-lens splicing to improve the detection sensitivity uniformity of an indoor light screen array measurement system (LSA for short) with large field of view angle. According to the principle of its lens photometry, we derive the mathematical model of detection sensitivity of the LSA scientifically. Furthermore, we can employ several lenses to splice a large field of view angle to ameliorate the uniformity of the sensitivity distribution of the indoor LSA. Finally, we discuss some key factors of the improved LSA and optimize them successfully. Through simulation and experiment, the results show that the uniformity of detection sensitivity of the indoor LSA using three-lens splicing increases by 47.4% relative to conventional one-lens LSA. Thus, the proposed method can enhance the detection performance of indoor LSA effectively.