The Instruments Research & Development Establishment (IRDE) is a laboratory of the Defence Research & Development Organization (DRDO). Located in Dehradun, its primary function is research and development in the field of optical and electro-optical instrumentation. Their objective is to develop products like night vision devices, electro-optical surveillance and fire control systems.

Projects

Holographic sight

The IRDE has developed holographic sights which are manufactured by India Optel's Ordnance Factory Dehradun, and have a range of up to 300m. The Indian Army has already put in a demand for 20,000 holographic device units, while the National Security Guards has shown interest in the device and requested some units in 2008.

Laser-guided anti-tank guided missile

In 2020, IRDE was among other DRDO laboratories that jointly developed an indigenous laser-guided anti-tank guided missile that can be fired from an Arjun main battle tank.

Anti-drone system

In 2021, IRDE was among other DRDO laboratories that jointly developed with Bharat Electronics a fully indigenous anti-drone system that has been acquired by all three branches of the Indian Armed Forces.

Quick Reaction Surface to Air Missile

In 2022 IRDE and DRDO laboratories developed the Quick Reaction Surface to Air Missile (QRSAM) system. The QRSAM provides a protective shield to the mobile armoured units of the Indian Army from aerial attacks.