Challenges DRISHTI
Development of alternative material to replace TFS (Tritium Fluorescence Source) used in Scales of Sights for continuous illumination at night time
The challenge involves replacing TFS (Tritium-Based Radioluminescent Material), which is commonly used in Scales of Sights for continuous night-time illumination. Tritium excites phosphor coatings to emit visible light, enabling precise scale readings during night-time operations and providing a reliable, continuous glow in low-light conditions without any external power source.One of the primary challenges with TFS is its restricted production and procurement due to stringent regulatory and statutory requirements being a radioactive material. As a result, there is a need to eliminate this radioactive material and identify a suitable alternative material. The objective is therefore to replace TFS with a substitute material that maintains MIL-STD-810 durability standards (e.g., resistance to extreme temperatures, shock, vibration, humidity, and dust as per MIL-STD-810), while ensuring reliable continuous night-time illumination, zero-maintenance performance in field conditions, and seamless integration into existing systems.
