Passive optical direction finder

摘要

The invention relates to an optical technique and is intended to measure the angular coordinates of the deleted objects. Summary of the utility model is to use between the focusing optical system and receiving light detector sequentially located on the optical axis of the circular optical scanning device, with an annular mask and mask window with a circular window. Mask annular window suppresses optical radiation from extraneous objects, and the circular scanning of the focused spot on the edge of the round window and the subsequent processing of the received optical radiation photodetector provides for determining the angular coordinates of the object under study. The technical result - an increase of consumer properties by improving the range, increase reliability and to improve reliability of the electronic part of the device. 1 bp f BACKGROUND ZP 1 f ly-7-yl.