RNVG-A (Articulating Ruggedized Night Vision Goggle)
The RNVG-A is an articulating version of the rugged, lightweight, bombproof 7075-T6 aluminum RNVGs. The RNVG-A is our most expensive unit, but it offers some great features. The most notable is the ability to stow the pods closer to your helmet. This improves the ergonomics significantly by allowing the weight to sit closer to your head, reducing fatigue when wearing the unit stowed for long periods. The RNVG-A also has individual pod shut-off in the stowed position, saving battery and mitigating light exposure accidents. Each pod has an adjustable pod tension screw, so you can fine-tune how much force is required to articulate the pod. Dialing it in allows you to confidently move the pods without throwing the rest of your helmet positioning off. This model has the same intuitive push-button controls as the standard RNVG model, including IR illumination and signaling capability, and runs off a single CR123 with approximately 16 hours of battery life. Our units will come ready to go out of the box with batteries and a 10-year warranty from Nocturnality.
But the big question is: Why aren’t we offering hand-selected tubes? Put simply, we are offering tubes that meet our standard of performance, and working with Nocturnality means we are basically getting hand-selected tubes in the first place. Picture a graph with tube specs along the bottom and performance along the side—the line will go up dramatically at first, but then it will level out with a marginal increase. All the tubes we are selling are Elbit Mil-Spec grades including YH, VH, PH, and adhere to a minimum of 1600 FOM and 25+ SNR. In our experience, going beyond these tubes, you are at the point of diminishing returns where the line starts to level out. There is next to no discernible difference in any of the tubes we are offering when it comes to what you are able to accomplish with them. We know this is an investment, but our goal past, present, and future is to curate products that take the guesswork away from the customer. If you still feel you want to hand-select based on individual technical specifications, then we are not the solution for you. You’ll want a custom solution instead, and it just so happens we know a guy.
One pair of AB NightVision RNVG-A (Ruggedized Night Vision Goggle – Articulating) with Gen 3 Elbit tubes; two daylight caps; custom padded pouch; tube manufacturer spec sheets; 1x CR123 lithium battery
|Batch Minimum||Batch Maximum|
Image intensifier tubes can have visible imperfections, either from the manufacturing process or, in the case of used tubes, blemishes caused by damage. Tubes are graded based on the severity of these imperfections and in which zone of the optical field they are visible. Tubes sold by T.REX will not have imperfections in Zone One.
Figure of Merit, most often referred to as FOM, is the result of multiplying a tube’s center resolution (RES) and signal-to-noise ratio (SNR). For example, OMNI VIII Mil-Spec contract specifications require a RES minimum of 64 lp/mm and an SNR minimum of 25, resulting in a 1600 FOM minimum. FOM is often used as a benchmark number for tube performance, and while it is important, it doesn’t tell the entire story, so all specs should be considered.
Resolution is the tube’s ability to resolve an image. This is measured in line pairs per millimeter and is measured with a bar chart on standard night vision test sets. For this specification, higher is better, and as mentioned previously, this number is multiplied by SNR to achieve a FOM rating.
Understanding the signal-to-noise ratio is easier when we better understand what signal and noise are separately. Signal is the true light being picked up by the photocathode within the tube; this is the image you see when the tube intensifies light. Noise is the “scintillation” or electronic noise found in a tube. This is a faint, random, sparkling effect throughout the image area. It may be obvious at this point, but SNR is the ratio between these two figures. The higher the SNR, the more signal there is compared to noise within the tube, making a higher number better.
EBI is the amount of light that the tube puts off when the objective lens is completely covered and there is no light entering the tube to be amplified by the photocathode. For an image to be visible through the tube, the light hitting the photocathode must overpower the tube’s natural background illumination or the image will be washed out, which means EBI determines the lowest light levels that an image is able to be seen through the tube. For this spec, lower is better.
Halo is the ring of light that forms around concentrated light sources when using night vision. Halo is prevalent with streetlights, headlights, or other concentrated light sources. The lower the number, the less prevalent this effect will be, so for this specification, lower is ideal.
- Push-button switches for power and an Infrared Illuminator, with a guarded IR illuminator button to prevent accidental activation.
- Pods can be rotated out of the user’s view, allowing one or both eyes for natural sight, and can be folded flat against the helmet to minimize neck strain.
- Automatic individual pod shutoff when the pod(s) are articulated up to prevent helmet illumination and ensure image intensifiers are off in the stowed position.
- “IR Illuminator On” and “Low Battery” indicators within the viewing area.
- Powered by an onboard CR123 battery or auxiliary power from a battery pack using a 4-pin LEMO-style connector.
- Full range of adjustment: Mil-spec Objectives for focus, Mil-spec Eyepieces for diopter adjustment.
- 10-year device warranty through Nocturnality.
Assembled by Nocturnality.
|Power source||(1) CR123 battery|
|Focus range||9.8” to infinity|
|Operation time||Approximately 16 hours|
|Magnification||(1x) One power|
|Field of view||40 degrees|
|Interpupillary adjustment||47 to 80mm|
|Diopter adjustment||-6 to +2|
|Weight||567g (20 oz) w/o battery|
583g (20.6oz) w/ battery
|Dimensions||4.14” x 4.2” x 3.2”|
|Water resistance||Submersible to 66 ft|
|IR Led and Low Battery Indicators||Yes|
This product is restricted by International Traffic in Arms Regulations (ITAR) and cannot be shipped outside of the USA.