超连续谱激光可见谱段致人眼眩目效应研究

本文采用超连续谱激光光源滤除其红外部分仅输出可见谱段部分,在不超过国家安全标准允许的最大辐照量条件下,以正入射方式照射人眼后,记录并分析在明、暗适应条件下中心极限视力恢复时间、中心近极限视力恢复时间和视觉后像持续时间,明确超连续谱激光可见谱段对人眼的眩目效果。明适应下激光照射0.1 s导致人眼中心极限视力恢复时间为31~119 s,中心近极限视力恢复时间为19~76 s;暗适应下激光照射0.1 s导致人眼中心极限视力恢复时间为26~223 s,中心近极限视力恢复时间为13~123 s;明、暗适应下导致人眼眩目效应的最小功率密度值分别为0.055 mW/cm^2和0.005 mW/cm^2。结果表明,超连续谱激光可见谱段对人眼有良好的眩目效果,可导致数十秒至数百秒的中心视力下降,随着照射功率密度增高,眩目效应增强,显示出较好的量效关系,且相同功率密度时暗适应下人眼的眩目效果优于明适应。该研究探究了明、暗适应条件下超连续谱激光对人眼眩目效应,明确了超连续谱激光与人眼眩目的量效关系。

Research on Dazzling Effects of Human Eyes Induced by the Visible Band Irradiation of Supercontinuum Laser

In this research,we use the supercontinuum laser to output the visible spectrum light by filtering out the infrared light.The light radiates the human eyes directly with less than the maximum power of laser safety standard.We record the recovery time of central limit vision and quasi-central limit vision,as well as the duration of visual afterimage,under the light and dark adaptation for exploring the dazzling effect on human eyes with the visible spectrum of supercontinuum laser.Under the radiation of 0.1 s in the light adaptation,the recovery time of human eye’s central limit vision is 30~119 s,the recovery time of human eye’s quasi-central limit vision is 19~76 s;Under the radiation of 0.1 s in the dark adaptation,the recovery time of human eye’s central limit vision is 26~223 s,the recovery time of human eye’s quasi-central limit vision is 13~123 s;the minimum power density for dazzling of light and dark are 0.055 mW/cm^2 and 0.005 mW/cm^2,respectively.There is a good eye-dazzling effect of the supercontinuum laser.The dazzling results in a loss of central vision in tens to hundreds of seconds.With the increase of irradiation power density,glare effect is enhanced,which shows a good dose-effect relationship.At the same power density,the dazzling effect of human eyes of dark adaptation is better than that of light adaptation.This study explores the eye-dazzling effect of supercontinuum laser under the condition of dark and light adaptation,and specifies the dose-effect relationship between supercontinuum laser and eye dazzling.