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发光二极管具有体积小、质量轻、功耗低、寿命长、可靠性高和响应速度快等优点,可以用作各种标志的发光器件,广泛地应用于指示灯、显示屏、交通管理和生产自动化中。推导出了发光二极管的作用距离公式,并针对常用的观测设备进行了分析。使用最低照度0.02lux和中等分辨率摄像机作为观测设备,辐射功率为6mW、辐射半顶角为25°的发光二极管作用距离可达1.5km。给出了相应的实验结果,验证了理论分析的正确性。
LED has the advantages of small size, light weight, low power consumption, long life, high reliability and fast response, and can be used as a light emitting device of various signs and is widely used in indicator lights, display screens, traffic management and production In automation. Derived the distance of light-emitting diodes formula, and for the commonly used observation equipment were analyzed. The use of the minimum illumination of 0.02lux and medium resolution cameras as observation equipment, the radiation power of 6mW, radiation half-angle of 25 ° LED range of up to 1.5km. The corresponding experimental results are given and the correctness of the theoretical analysis is verified.