In den Flugplatzbelag eingebettete Rollbahnleuchte

摘要

In an airfield inset runway light a prism of substantially rhombic cross section is mounted in a housing with the major axis of the rhomb in substantially horizontal position and the prism is illuminated from two sides below the major axis in order to radiate rays from the upper surfaces of the prism so that the radiated rays form a small angle with the horizontal direction.