| 摘要 |
<p>In a marker light e.g. for a runway, the light source (56), reflector (57) and lens (59) are fixed on a base member (32) via support frames 60, 61 so that their relative position is adjustable. This optical unit is provided within a metal box 1 having a sealed construction and a light transmitting window (53) through which the light emitted from the light source (56) is outwardly projected. <IMAGE></p> |
