As surprising as it may sound, in 1939-1940 USSR tested night vision set for tank drivers. Test vehicle: BT-7. The set utilized IR headlights and special driver’s goggles:
Improved set, tested in 1941:
This one provided vision in 24 degree cone at distances up to 50 meters. The military wasn’t satisfied by the device though - it was considered too bulky and unsuitable for use during winter.
Work continued even during the war. In 1944, new set was presented for testing, this time it was intended for use on T-34.
This device served as a base for first post-war generation of Soviet night-vision equipment.