Technical specification of the guidance lanterns produced by Noble Industrial Corporation of Iran
1. The lenses have a color stability of at least 5 years and have a primary resistance to ultraviolet radiation; they have a thermal tolerance of 40-80 ° C. The color of the standard color of the green is presented in a continuous manner.
2. The lenses are non-bubble and transparent, and are made of polished surfaces (surface roughness reduces light output in a short time)
3. The diameter of the lenses is 200 and 300 mm in size.
4. Lenses are designed in such a way that with elastic sealing gasket do not allow the entry of dust and dust into the light system of the lamp.
5. The lenses are convex and have spider-bar grooves inside, so that they distribute light uniformly at different distances and prevent light from falling to one side.