Assessing risk from unfavoura ble laser ra diation effect on visual organ during cultura l and public events

Abstract

Problem of assessing risk from laser radiation influence on humans during concerts and shows becomes specially topical. Evidence is that single exposure of eyes to laser radiation in red, green, blue spectral regions by energetic light sources in laser shows, not exceeding MALs, causes short changes of visual fuction in sensitivity to light and color. The article presents results of thorough study of laser radiation intensity in beam section from various projectors, with consideration of distance and exposure time for audience and actors. Findings are that risk of unfavorable influence of laser radiation on humans depends on duration, wave length, distance to human and capacity of the projector used.