The Armasight by FLIR BNVD is a dual-channel night vision system. With a 40° field of view (FOV), it provides a large visual field without needing to move the binoculars. The BNVD uses advanced multi-coated optics and is built to last with a compact composite housing. Operating from a single AA alkaline battery or CR123A battery, the BNVD can run up to 20 hours. Also equipped with an integral infrared illuminator for reading in the dark.
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| EXCEPTIONAL VISION |
COMPACT AND RUGGED |
FLEXIBLE MOUNTING OPTIONS |
| True stereoscopic vision and built-in infrared illuminator |
Perfect balance of size and performance |
Packed with features for a versatile and customizable viewing experience |
- Dual tube design provides increased depth perception and outstanding clarity.
- Built-in IR illuminator enhances night vision and allows for reading in the dark.
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- Built with a tough, ergonomic composite housing that is water and fog resistant.
- Needing only a single AA battery or one CR123 battery for convenient operation, can run up to 20 hours. An optional battery pack mounted behind the helmet extends the use up to 80 hours.
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- For hands-free operation, the BNVD includes head and helmet mounting options, it can be used as binoculars, as a monocular, goggles or stowed out of the way.
- Operated by a single gain control knob, the BNVD utilizes features like a flip-up-turn-off, and a flip-down-turn-back-on option when mounted to a helmet.
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System Description
The BNVD utilizes the principle of intensification of the residual light that is reflected from the surrounding objects. The optical system of the unit consists of two monocular channels, each consisting of a lens, an image intensifier tube (IIT), and an eyepiece.
This device operates with a single gain control knob for both channels. Each unit allows for vertical adjustment (using the head or helmet mount), fore-and-aft adjustment, objective lens focus, eyepiece focus, and interpupillary distance adjustment. The binoculars are equipped with an infrared (IR) light-emitting diode (or illuminator) to provide additional illumination for reading a map. The binoculars are also equipped a low battery indicator, a bright light cut-off system indicator, and IR illuminator indicator in the field of view of device.
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System Controls
Turn-pull Operating Switch
The turn-pull operating switch performs the following functions:
- Activates the BNVD when turned to ON.
- To activate built-in IR illuminator, pull switch out and turn to IR position. The IR illuminator will activate on, and red LED indicators in both eyepieces will glow. Rotate the switch to ON position to deactivate the IR.
- Deactivates the BNVD when turned to OFF position.
Diopter Adjustment Ring
The diopter adjustment ring allows a user to alter the viewfinder to accommodate that individual’s eyesight for optimum image sharpness. While looking through the eyepiece, rotate the diopter adjustment ring to optimize the sharpness of the image in the viewfinder.
Focus Ring
Bring the object into focus by turning the objective focus ring (counter clockwise for far focus, clockwise for near focus, if you look in the eyepieces). Rotate the focus ring until the subject looks sharp in the viewfinder.
Interpupillary Distance Knob Adjustment
Adjusts the distance between each eyepiece by rotating the knobs together or apart, allowing for each eye to observe the entire field at the same time.
Gain Control Knob
Used to adjust the gain (brightness) of the viewed image. Turn the gain control to balance the illumination input to the eyes.
Indication
When the BNVD is ON, the color LED indicators can be shown in the field of view. The color LEDs indicate the following states of the device:
| Indications |
Color of LED in the FOV |
| Built-in IR illuminator is activated |
Red |
| Image intensifier tubes are exposed to excessive levels of light |
Green |
| Battery is low |
Flashing Red |
Auto Power Off Function
The BNVD bright light cut-off feature shuts off power to the binoculars when they are exposed to excessive levels of light for more than 10 seconds.
Automatic shut-off system automatically turns off the device when it is unused (controls are not touched) for 60 minutes. The automatic shut- off function preserves battery life should the device be inadvertently activated.