A system and method. The system may include an eye tracking system. The eye tracking system may include a short-wave infrared (SWIR) light source configured to emit SWIR light at between 900 nanometers (nm) and 1,700 nm wavelength onto an environment, a SWIR sensitive image sensor configured to capture images of the environment illuminated by the SWIR light source, and a processor communicatively coupled to the SWIR sensitive image sensor. The processor may be configured to: receive image data from the SWIR sensitive image sensor; track movement of an eye of a user based on the image data; and output eye tracking system data indicative of the tracked movement of the eye of the user.

The binocular bridge system is configured to couple two night vision monoculars together, effectively providing the user with a binocular night vision system. An example binocular bridge system comprises a bridge, two hinged arms, and two dummy battery inserts. Each dummy battery insert is configured to be positioned within the battery compartment of a night vision monocular and conductively connect it to a power source housed within the bridge. In some implementation, each hinged arm of the binocular bridge system includes an objective alignment ring. The hinged arms of such a binocular bridge system, in conjunction with the objective alignment rings, are configured to mechanically collimate the night vision monoculars secured thereto.

The invention relates to an interface for connecting an optical device and a mobile support which cooperates securely with an imprinted element, the interface having a base arranged to be inserted into the imprinted element, the base being a hollow body. The base accommodates mechanical play compensating structures which are movably mounted within the hollow body so as to project and are arranged in order to bear against a wall of the imprinted element.

A modular binocular night vision device permits vision during low-light conditions by converting incoming near-infrared and visible light from a viewed scene to an intensified visible light image. The modular binocular night vision device comprises a pair of monocular housings, connected to one another by way of a bridge, that are arranged for respectively covering the right and left eye of an observer. Each monocular housing contains an identical optical system. An example modular binocular night vision device comprises: a bridge that includes a mechanical connection port on a top side thereof; and a mount module that includes a base and an onboard power source, the base is removably attachable to the mechanical connection port on the bridge and the onboard power source is adapted to provide power to the binocular night vision device. The mount module can be used to attach the modular binocular night vision device to a helmet.

An optical assembly allows video imagery to be imported into a night vision device and exported therefrom. The assembly can be an insert that is installed between the image tube and eyepiece of an existing night vision device to retrofit the device for superimposing images. Images imported—e.g., images captured by thermal detectors, maps, compass information, training video, etc.—are received wirelessly and injected into the optical train of the night vision device such that both the night vision scene from the goggle and the injected imagery can be simultaneously observed at the eyepiece. Combined images can be transmitted to external systems for observation purposes such as real-time active mission feedback. The insert provides sensor fusion and interconnection to the digital battlefield for presently-fielded night vision goggles. It receives power and optical information from the existing goggle. Goggles using this device can have full functionality and performance.

An adjustable night vision goggle adapter device includes: a mounting point configured to attach to a helmet; a body affixed to the mounting point and including a surface having a first half of a bearing/detent interface and a central axis; and an arm rotatable about the central axis, having: a first end including a second half of the bearing/detent interface and being configured to rotate about the central axis; and a second end configured to form a joint with a night vision goggle interface, wherein the joint is configured to be rotatable about a shaft and is further configured to be lockable into a fixed position holding the night vision goggle interface at a fixed angle relative to the rotatable arm.

The present invention relates to a helmet mounting assembly for enhanced night vision goggles, and more particularly to a flip-up helmet mount (2) designed to allow for automatic shutoff of an attached ENVG (8) when stowed, and automatic activation of an ENVG when returned to the in-use position. An automatic shutdown assembly including a magnet module (26) and a magnetically-responsive sensor (36) wherein the magnet module comprising a magnet (28) that emits the necessary magnetic field (34) which influences the magnetically-responsive sensor when in the stowed position in order to turn the ENVG off.

A finite conjugate optical assembly, comprising a lens with a core zoom module that includes five optical groups that are configured to exhibit at least 1.58 mm.sup.2sr of etendue at a lowest magnification position, and a ratio of highest to lowest magnification of at least 7:1, and to provide a maximum magnification of 2 or greater.

A finite conjugate lens assembly with modular interchangeable components includes a zooming component that includes three independently movable lens groups that are disposed within the lens assembly between a pair of static lens groups. The lens assembly exhibits an etendue of between 0.95 and 4.65 mm.sup.2sr.

A finite conjugate lens assembly including an afocal zooming component that has five optical groups that are configured to provide a ratio of highest to lowest magnification between 5.5:1 and 16:1. A lens attachment module and rear adapter module may be disposed, respectively, on an object side and an image side of the optical assembly. The lens assembly may exhibit an approximate etendue between 0.95 and 4.65 mm.sup.2sr, and may be configured in accordance with between 6.6 MP and 32 MP image sensors.