The invention belongs to the technical field of
night vision devices, and particularly discloses a four-eye
night vision device. Two image intensifiers are arranged in a main lens frame of the four-eye
night vision device, a circuit board is arranged between the two image intensifiers, two objective lenses are fixed to the object side of a lens body, an ocular lens is connected to the image side of the lens body, two ocular lens sets are arranged in an ocular lens frame, and an ocular lens clamping sleeve is fixed to the image side of the ocular lens frame; the objective lens seat extends into the main lens frame and abuts against the
image intensifier, the objective lens group is in threaded connection with the objective lens seat, the objective lens pressing ring is in threaded connection with the main lens frame and abuts against the objective lens seat, the focusing hand wheel is fixed on the objective lens group, a
flange plate is arranged on the image side of the objective lens seat, the image side of the objective lens pressing ring abuts against the
flange plate, and a sealing ring I is arranged between the image side of the objective lens pressing ring and the
flange plate. The objective lens pressing ring abuts against the flange plate of the objective lens seat and is in threaded connection with the main lens frame, and the objective lens group is in threaded connection with the objective lens seat, so that the objective lens is convenient to connect and adjust, and the device has the characteristics of compact structure, light weight, convenience in installation, reliability in connection and low cost.