US 11,988,819 B2
Reduced thickness night vision device
Jon D. Burnsed, Tempe, AZ (US); Joseph C. Ottney, Newmarket, NH (US); and Nicholas W. LeCain, Pembroke, NH (US)
Assigned to L3HARRIS TECHNOLOGIES, INC., Melbourne, FL (US)
Filed by L3Harris Technologies, Inc., Melbourne, FL (US)
Filed on Jun. 18, 2021, as Appl. No. 17/352,024.
Prior Publication US 2022/0404594 A1, Dec. 22, 2022
Int. Cl. G02B 13/16 (2006.01); G02B 6/04 (2006.01)
CPC G02B 13/16 (2013.01) [G02B 6/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical device comprising:
a zonal objective array comprising an array of at least three objectives;
a zonal fiber-optic inversion bundle, comprising a plurality of at least three sub-bundles, each sub-bundle having an input coupled to a corresponding objective in the zonal objective array;
a zonal eyepiece array comprising an array of at least three eyepieces, each of the eyepieces in the zonal eyepiece array being coupled to an output of a corresponding sub-bundle in the zonal fiber-optic inversion bundle, and further being configured to output light from each of the eyepieces in the array of at least three eyepieces to a single eye of a user;
wherein an arrangement of the array of at least three objectives, plurality of at least three sub-bundles, and array of at least three eyepieces is optically direct view;
a second zonal objective array comprising a second array of at least three objectives;
a second zonal fiber-optic inversion bundle, comprising a second plurality of at least three sub-bundles, each sub-bundle having an input coupled to a corresponding objective in the second zonal objective array; and
a second zonal eyepiece array comprising a second array of at least three eyepieces, each of the eyepieces in the second zonal eyepiece array being coupled to an output of a corresponding sub-bundle in the second zonal fiber-optic inversion bundle, and further being configured to output light from each of the eyepieces in the second array of at least three eyepieces to a second single eye of the user.