Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Active imaging system with Faraday filter

Patent ·
OSTI ID:6227600
An active imaging system has a low to medium powered laser transmitter and receiver wherein the receiver includes a Faraday filter with an ultranarrow optical bandpass and a bare (nonintensified) CCD camera. The laser is locked in the vicinity of the passband of the Faraday filter. The system has high sensitivity to the laser illumination while eliminating solar background.
DOE Contract Number:
W-7405-ENG-48
Assignee:
Dept. of Energy, Washington, DC (United States)
Patent Number(s):
A; US 5202741
Application Number:
PPN: US 7-905989
OSTI ID:
6227600
Country of Publication:
United States
Language:
English