An optical system includes an optical waveguide, and a first optical element configured to direct a first ray, having a first circular polarization and impinging on the first optical element at a first incidence angle, in a first direction so that the first ray propagates through the optical waveguide via total internal reflection toward a second optical element. The first optical element is configured to also direct a second ray, having a second circular polarization that is distinct from the first circular polarization and impinging on the first optical element at the first incidence angle, in a second direction that is distinct from the first direction so that the second ray propagates away from the second optical element. The second optical element is configured to direct the first ray propagating through the optical waveguide toward a detector.

The present invention is a lightweight night vision device (NVD) sealed from environmental conditions, shielded from electromagnetic interference (EMI), and having mechanisms for easy adjustment and fixation of collimation and interpupillary distance. The NVD monocular housing is integrated with the eyepiece, image intensifier tube module, and objective, allowing collimation to be fixed via an optical alignment of the monocular housing to its eyepiece, tube module, and objective. Certain components from existing NVDs may be reused in assembling the present invention to provide cost savings.

An imaging device (100) for acquiring and displaying images in real-time, the imaging device comprising i) an imaging sensor (110) comprising a radiation sensitive array (120) for acquiring an image (142), ii) a readout circuit (140) connected to the radiation sensitive array for reading out the image, iii) a signal processor (160) for processing the image for obtaining a processed image (162), and iv) a display (180) for displaying the processed image, the radiation sensitive array being arranged in rows of sensor pixels and the display being arranged in rows of display pixels, and wherein the readout circuit is a rolling shutter circuit for sequentially reading out the rows of sensor pixels for sequentially providing subsets of pixels, the signal processor is configured for, on availability of one of the subsets of pixels, processing the subset of pixels for providing a processed subset of pixels, and the display is configured for, on availability of the processed subset of pixels, displaying the processed subset of pixels on a thereto corresponding subset of display pixels for displaying the processed image sequentially on the rows of display pixels.

Improved helmet mounting devices for an optical device are provided. The mounting devices herein include dual pivot axes providing multiple flip options for pivoting the viewing device and/or mount up and away from the user's line of sight. The dual pivot axes and multiple flip positions also allow the unit to be adapted for a variety of viewing devices.

A modular mounting system for a night vision device includes one or more night vision monoculars, each night vision monocular having an imaging tube, a housing, and a first mounting shoe at a first position on the housing. A power supply has a first fastener thereon. A helmet mount at a first location on a helmet has a second fastener thereon. A power supply interface is located at a second location on the helmet and a second mounting shoe is provided on the power supply interface. The first mounting shoe is interchangeably and removably attachable to the first fastener and the second fastener, and, the first fastener interchangeably and removably attachable to the first mounting shoe and the second mounting shoe. In a further aspect, a firearm rail interface is provided to allow the night vision monocular to alternatively be positioned on a firearm accessory rail.

A personal area radar is provided to permit a user to be aware of their surroundings. This may be in 360 degrees or any other suitable coverage area and angle. The personal area radar can show objects to the user through fog, smoke, precipitation, darkness and with full 360 degree field of view capability, significantly improving the user's overall situational awareness. They may also be used to view things that are behind solid objects such as in or behind walls or underground. These systems may be highly integrated phased array radar systems mounted on a helmet. They may use small, high frequency radars able to detect solid objects (and/or semi-solid objects) such as people, improvised explosive devices (IED), or other solid objects. These methods and systems may provide the user with 360 degrees view and awareness of objects regardless of external conditions such as weather, darkness or other obstructions.

A wearable display apparatus for viewing video images of scenes and/or objects illuminated with infrared light, the display apparatus including a transparent display that is positioned in a user's field of vision when the display apparatus is worn, a stereoscopic video camera device including at least two cameras that each capture reflected infrared light images of a surrounding environment and a projection system that receives the infrared light images from the stereoscopic camera device, and simultaneously projects (i) a first infrared-illuminated video image in real-time onto a left eye viewport portion of the transparent display that overlaps a user's left eye field of vision and (ii) a second infrared-illuminated video image in real-time onto a right eye viewport portion of the transparent display that overlaps a user's right eye field of vision.

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.

A binocular display system comprises: a binocular image pickup system that includes a right eye-use image pickup optical system and a left eye-use image pickup optical system; a binocular display system that includes a right eye-use display unit which displays image information picked up by the right eye-use image pickup optical system, and a left eye-use display unit which displays image information picked up by the left eye-use image pickup optical system; and a correlating means that correlates the binocular image pickup system and the binocular image display system. In addition, a binocular display device comprises an image processing unit that processes the image information obtained by the binocular image pickup system. The image processing unit can enlarge an image and display the same on the binocular display system, and correct the movement of the displayed image when at least a prescribed amount of enlargement is carried out.

A system for displaying, on a see-through display located within a moving platform, a frame, while at least partially correcting a rolling display effect.