Infrared tracking sensor

Abstract

Abstract PURPOSE:To attain an excellent tracking sensor by using an infrared image pickup element as a photodetector for obtaining a distance measuring signal. CONSTITUTION:A vertical synchronizing signal showing a waveform (g) corresponding to one cycle in the vertical direction of scanning due to a finely moving mirror 11 and a horizontal synchronizing signal showing a waveform (h) corresponding to horizontal-direction scanning are synchronized with an external synchronizing signal (c). A laser radiation compensating signal from the external is received to measure an interval tau of time between a start signal l, which is obtained by a start signal detector 8, and a stop signal (m), which is obtained by a stop circuit signal detecting circuit 22, on a basis of a laser radiation delay signal (k), which is delayed in a delay circuit 21 by a corresponding time, the start signal l, and the stop signal (m), thereby attaining the distance to a target. The sensor is used in a tracking system the to attain significant effect.

Inventors

• 👤 Michio Oomichi
• 👤 大道　「みち」男

Bibliographic Details