US 11,747,445 B2
Warning receiver for detecting and characterizing an optical source
Sean D. Keller, Tucson, AZ (US); Gerald P. Uyeno, Tucson, AZ (US); and Zachary D. Barker, Beavercreek, OH (US)
Assigned to Raytheon Company, Waltham, MA (US)
Filed by Raytheon Company, Waltham, MA (US)
Filed on Aug. 25, 2021, as Appl. No. 17/411,859.
Prior Publication US 2023/0068495 A1, Mar. 2, 2023
Int. Cl. G01S 7/48 (2006.01); G01S 3/781 (2006.01); G01S 3/787 (2006.01); G02B 13/08 (2006.01)
CPC G01S 7/4804 (2013.01) [G01S 3/781 (2013.01); G01S 3/787 (2013.01); G02B 13/08 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A warning receiver, comprising:
a first anamorphic lens positioned to receive light within a field-of-view (FOV) defined by first and second scene spatial angles that are orthogonal to each other and to compress the light along the first scene spatial angle into a single line of light along the second scene spatial angle;
a first dispersive element positioned to separate the single line of light into a plurality of wavelengths orthogonal to the second scene spatial angle to produce a two-dimensional light field indexed by the second scene spatial angle and wavelength;
a pixelated detector positioned to receive the two-dimensional light field and readout electrical signals indexed by the second scene spatial angle and wavelength; and
a processor coupled to the pixelated detector to process the electrical signals indexed by the second scene spatial angle across a wavelength spectrum of the single line of light to detect and characterize an optical source within the FOV.