| CPC G02B 23/12 (2013.01) [G01J 1/44 (2013.01); G08B 21/182 (2013.01)] | 20 Claims |

|
1. A method of upgrading a night-vision system, the method comprising
attaching a flex circuit along an exterior side of an intensifier module, the flex circuit comprising one or more light detectors; and
inserting the intensifier module into a housing of the night-vision system in a fashion that allows the light detectors to detect light from light emitters in the night-vision system.
|