| 摘要 |
PURPOSE:To enable a person to recognize visually reflected light of LED of which number is the same as the reflection face number of reflection member, from a specified projection direction, and prevent the generation of psuedo- lighting caused by incidence of outer light. CONSTITUTION:A light source structure composed of combined LED 1 and reflection member 2 is built in a signal display lamp. Reflected light of LED by the member 2 is displayed as signal light beams of various colors to perform display of the conditions of machine or the like. The structure of light source of the lamp is made such that a plurality of reflection members 21, 22, 23, 24 spaced at a proper interval are arranged in an effective visual field angle of LED 1. The light of LED is reflected in a specified projection direction with the reflection members 21, 22, 23, 24. |
