Ritt Gunnar
Fraunhofer IOSB, Gutleuthausstr. 1, 76275 Ettlingen, Germany.
Sensors (Basel). 2019 Aug 30;19(17):3765. doi: 10.3390/s19173765.
This publication presents an approach to adapt the well-known classical eye-related concept of laser safety calculations on camera sensors as general as possible. The difficulty in this approach is that sensors, in contrast to the human eye, consist of a variety of combinations of optics and detectors. Laser safety calculations related to the human eye target terms like Maximum Permissible Exposure (MPE) and Nominal Ocular Hazard Distance (NOHD). The MPE describes the maximum allowed level of irradiation at the cornea of the eye to keep the eye safe from damage. The hazard distance corresponding to the MPE is called NOHD. Recently, a laser safety framework regarding the case of human eye dazzling was suggested. For laser eye dazzle, the quantities Maximum Dazzle Exposure (MDE) and the corresponding hazard distance Nominal Ocular Dazzle Distance (NODD) were introduced. Here, an approach is presented to extend laser safety calculations to camera sensors in an analogous way. The main objective thereby was to establish closed-form equations that are as simple as possible to allow also non-expert users to perform such calculations. This is the first time that such investigations have been carried out for this purpose.
本出版物提出了一种尽可能通用的方法，将著名的与眼睛相关的激光安全计算经典概念应用于相机传感器。这种方法的难点在于，与人类眼睛不同，传感器由光学器件和探测器的各种组合构成。与人类眼睛相关的激光安全计算针对诸如最大允许暴露（MPE）和标称眼险距离（NOHD）等目标术语。MPE描述了眼睛角膜处允许的最大辐照水平，以保护眼睛免受损伤。与MPE对应的危险距离称为NOHD。最近，有人提出了一个关于人眼眩光情况的激光安全框架。对于激光致眼眩光，引入了最大眩光暴露（MDE）和相应的危险距离标称眼眩光距离（NODD）等量。这里提出一种以类似方式将激光安全计算扩展到相机传感器的方法。其主要目标是建立尽可能简单的封闭形式方程，以便非专业用户也能进行此类计算。这是首次为此目的进行此类研究。
