Design Of Intelligent Lamps Beased On Concepts Of Healthy Lighting

Since ancient times,human beings have been accompanied by the sun.The deep red and near-infrared light in the sunlight have the functions of promoting blood circulation and enhancing human immunity.The spectrum of incandescent lamp is similar to that of sunlight,but it is rarely used in home lighting.At present,the mainstream lighting source(LED)generally lacks deep red and near-infrared light,with high blue light content,and the function of lamp is single.Therefore,based on PIC16LF1554 MCU,this paper designed a multifunctional power strip dedicated to the power supply of incandescent lamps.In addition,in order to make up for the shortage of LED light source,the lighting route of "LED+ incandescent lamp" mode is proposed.The LED and incandescent lamp are combined,and the combined light source is intelligentized,which solves the problems of single function of LED light source and lack of deep red light and near-infrared light.The main research results are as follows:(1)It is calculated that the lens temperature would increase by 1℃ under 40 W incandescent lamp working continuously for 58 h,while the lens temperature would increase by 5℃ to reach the threshold of inducing cataract.Therefore,the risk of infrared cataract induced by incandescent lamps can be ruled out.(2)A multifunctional power strip is designed for the power supply of incandescent lamps,which realizes the following three purposes: after high-frequency power supply,the measured stroboscopic frequency of incandescent lamps is 1437 Hz,and its stroboscopic will not affect people’s health;in the elderly mode,the stroboscopic frequency of the light source is set to 40 Hz,which may have the effect of preventing Alzheimer’s disease;Dynamic lighting mode can prevent ciliary muscle spasm,which may play a role in preventing and controlling myopia.(3)In this paper,an LED excited by purple light is packaged,and its blue light content is only 4.3%.Combining this LED with incandescent lamp,the synthetic light source can meet the requirements of low blue light and containing deep red and near-infrared light.Besides,a multifunctional desk lamp is designed using this combination of light sources.In addition to the dynamic lighting function,the desk lamp also has a lighting mode with a constant illuminance of 300-400 lx,which can prevent the brightness from being too high or too low due to improper height adjustment of the desk lamp,so as to protect the eyes.