US 9,810,888 B2
Dual-pupil dual-band WFOV re-imaging optical systems
Susan B. Spencer, Rolling Hills Estates, CA (US); and John F. McGee, III, Plano, TX (US)
Assigned to RAYTHEON COMPANY, Waltham, MA (US)
Filed by RAYTHEON COMPANY, Waltham, MA (US)
Filed on Aug. 28, 2015, as Appl. No. 14/838,745.
Prior Publication US 2017/0059830 A1, Mar. 2, 2017
Int. Cl. G02B 26/08 (2006.01); G02B 13/14 (2006.01); G02B 27/10 (2006.01); G02B 7/02 (2006.01); G02B 26/00 (2006.01); G02B 15/06 (2006.01)
CPC G02B 13/146 (2013.01) [G02B 7/028 (2013.01); G02B 15/06 (2013.01); G02B 26/001 (2013.01); G02B 26/08 (2013.01); G02B 27/1013 (2013.01); G02B 27/1066 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A dual-pupil, dual spectral band, wide field-of-view re-imaged refractive optical imaging system comprising:
a dual-band front objective lens group configured to receive electromagnetic radiation over the field-of-view of the optical imaging system, to form a first pupil of the optical imaging system, and to direct the electromagnetic radiation through the first pupil, the electromagnetic radiation including first and second non-overlapping spectral bands, the field-of-view spanning at least 45°×45°;
a second dual-band front objective lens group having a second field-of-view spanning at least 45°×45°;
a beam deflector disposed proximate the first pupil and configured to selectively deflect a line-of-sight of the optical imaging system to the second dual-band front objective lens set; and
a re-imaging refractive optical sub-system configured to receive the electromagnetic radiation via the first pupil, to form at least one intermediate image plane, and to focus the electromagnetic radiation via at least one second pupil onto at least one final image plane to form a first image from the first spectral band and a second image from the second spectral band.