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隧道内灯光的亮度分布既关系到行车人员的安全,亦关系到能源节约的重要问题。本文叙述模拟隧道入口处亮度变化时,有关视标检测阈的时间适应的动态研究。实验仪器采用模拟环境亮度变化的双通道——Maxwellian投影系统的光学装置。实验是用心理物理阶梯法来测定其动态阈限和静态阈限。根据实验所得的人眼时间适应曲线可指导隧道内的灯光布置。
The brightness distribution of the light in the tunnel not only relates to the safety of the driver, but also relates to the important issue of energy conservation. This article describes the dynamic study on the time adaptation of the visual target detection threshold when simulating the brightness changes at the tunnel entrance. The experimental instrument uses a two-channel model that simulates changes in the brightness of the environment - the optics of the Maxwellian projection system. The experiment is to use the psychophysical step method to determine the dynamic threshold and static threshold. According to the experimental human eye time adaptation curve can guide the lighting within the tunnel layout.