A system for allowing transmitter and receiver optical systems to utilize a common aperture and common optical elements simultaneously by introducing the transmitted beam into a small coaxial blind zone generated by an obscuration.
申请公布号
US4074930(A)
申请公布日期
1978.02.21
申请号
US19760652956
申请日期
1976.01.28
申请人
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE