一、引言所有水面船舶使用的电气号灯在出厂前,对其性能必须经过严格的检测,检测结果应符合《海船信号设备规范》(以下简称《规范》)及《船用电气号灯技术条件》(以下简称《条件》)的规定。《条件》中除规定了技术要求之外,还规定了检验规则和试验方法。根据《规范》及《条件》的要求,对每种号灯来说,其能见距离和光照角度是重要参数之一。而按照《条件》要求测量这两个参数的 I. INTRODUCTION The electrical lights used on all surface ships must be rigorously tested before they leave the factory. The test results shall comply with the requirements of the “Code for Ship Signal Equipment” (hereinafter referred to as the “Code”) and the “Technical Specifications of Marine Electrical Lights ”(Hereinafter referred to as“ conditions ”) requirements. “Conditions” in addition to the provisions of the technical requirements, but also provides inspection rules and test methods. According to “norms” and “conditions” requirements, for each type of light, its visibility distance and light angle is one of the important parameters. In accordance with the “conditions” required to measure these two parameters