RANGE FINDER Russian patent published in 1997 - IPC

FIELD: optical technology. SUBSTANCE: proposed range finder is specifically related to infrared equipment to find distances to infrared radiators. Given range finder perform raging with shortened base with the aid of three-section receiver in which outputs of sections are connected in pairs to subtracters which outputs are connected through inverters to unit calculating duration coupled to subtracter into which value of constant established during adjustment is also entered. EFFECT: simplified design, improved functional reliability. 4 dwg