Eye-safety analysis of infrared laser imaging for security surveillance

Eye-safety analysis is very important in the civil application of infrared laser imaging. In order to meet the requirements of human eye-safety protection, a model of eye-safety analysis is established based on ANSI Z136.1 Standard. When the value of maximum permissible exposure is given, one can estimate laser power and beam divergence angle under desired eye-safety distances from the model. We have simulated the model by MATLAB and given the laser power curve at different distances. Based on the curve, the eye-safety parameters of laser imaging systems can be easily designed. Therefore, the proposed model of eye-safety analysis can help to standardize infrared laser imaging products.