Modular night vision device and power supply for a television camera

A modular night vision device for universal use with various types of camera devices. The night vision device has an image intensifier module for intensifying light images which can be removably coupled to a lens mount aperture of a camera device, and a separate power supply control module which can be removably coupled to a remotely located surface of the camera device and electrically coupled to an externally-located power jack of the camera device. The power supply control module is provided for receiving any DC voltage produced by the camera device which falls within a predetermined range of DC voltages and converting the voltage into a plurality of operating voltages which are useable to power the image intensifier module. The night vision device also has a cable for transmitting the operating voltages from the power supply control module to the image intensifier module.