摘要
基于温室植物光学作用和光形态调节原理,设计了两种用于植物照明的发光二极管(LED)阵列。通过推导阵列的辐射照度叠加公式并根据叠加公式对阵列进行仿真优化。两种阵列均采用红蓝LED相结合的方式排列,其中阵列1红光和蓝光LED的数量比是1:1,阵列2红光和蓝光LED的数量比是4:1。通过光学模拟软件Tracepro对照射平面进行辐射照度均匀性分析,经过优化后的阵列2在照射平面上辐射照度均匀性优于阵列1,并且阵列2的LED间距较大,更有利于整个LED阵列的散热。该结果为LED植物照明灯的阵列设计提供参考。
Based on the photosynthesis and photomorphogenesis of greenhouse plant, two kinds of light emitting diode （LED） arrays for plant illumination were designed. The irradiance superposition formula of the LED array was derived, and then the LED arrays were simulated according to the formula. The red and blue LEDs were uniformly arranged, the proportion of red LEDs to blue LEDs is 1：1 in the first array, and the proportion of red LEDs to blue LEDs is 4：1 in the second array. Experimental results analyzed by TracePro software show that the second LED array has an advantage over the first one on irradiance uniformity, and the second LED array perform better at cooling because the spacing between LEDs become larger. The LED arrays distributions applied to plant illumination were achieved and reliable reference for the design of LED array is provided.
出处
《光学仪器》
2011年第5期75-80,共6页
Optical Instruments
基金
广东省教育部产学研资助项目(2009B090300338)
