HPT Image Intensifier TubesHigh Performance Tube!New production technology of these high performance tubes has resulted in improved performance standards for resolution and signal to noise specifications.Units with ATN HPT image intensifier tubes have a guaranteed resolution of 54-64lp/mm and signal to noise 18-24.Due to the custom manufacturing required for many ATN products please allow for shipping delays.Spec SheetUser GuideExport Restrictions Apply ATN products are subject to the Arms Trade Act and may not be exported.
See clearly once the sun goes down with the ATN NVG7-HPT night vision goggles. These single-tube goggles--which are built around a high-grade 18mm Gen HPT image intensifier tube--are appropriate for a range of applications, including cave exploration, paintball, camping, boating, surveillance, and even specialized situations like criminal investigations or fire fighting. The lightweight, compact goggle system features multi-coated, all-glass optics and a wide-angle infrared illuminator that lets you see close-up items in complete darkness. The goggle's comfortable flip-up headgear, meanwhile, lets you mount the goggle on your head or helmet, or you can carry it like a binocular for on-the-spot viewing. Available with a wide range of image intensifier tubes--including powerful 5x and 10x lenses--the water- and fog-resistant goggles carry a limited two-year warranty.
Night vision goggles work by amplifying existing ambient light. |
How Night Vision Works All ATN night vision devices consist of several main parts: an objective lens, an eyepiece, a power supply, and an image intensifier tube (photocathode tube). The devices function by gathering existing ambient light, such as starlight, moonlight, or infrared light, through the front lens. This light, which is made up of photons, goes into the photocathode tube and is converted into electrons. Next, the device amplifies the electrons to a much greater number through an electrical and chemical process, and then hurls them against a phosphorous screen that changes them back into visible light. The image will appear through the eyepiece as a clear, green-hued, amplified re-creation of the scene you were observing.
All night vision devices need some light to amplify. That's why all ATN night vision devices have a built-in infrared illuminator (IRI). An IRI essentially throws out a beam of infrared light that is near invisible to the naked eye, but your night vision device can see it. This allows you to use your scope even in total darkness. The IRI works like a flashlight, which is why the distance you can see with it is limited. Although ATN IRIs extend out to 100 yards, the IRI may cover only 40 to 60 percent of the viewing area.
How Far Can You See?
There are many different variables that can affect the distance you see with a night vision device. First, what are you trying to see? Are you looking for another boat on the water or are you looking for a rabbit in the woods? The larger the object, the easier it is to see. Plus, are you trying to see details (commonly called "recognition range"), or are you just trying to see if something is there? Maybe you will see just the movement, but won't be able to determine 100 percent who are what it is. This is called "detection range." Another variable is lighting conditions. The more ambient light you have, the better and further you will be able to see. You can always see further on a night where the moon and stars are out than if it's cloudy and overcast. ATN typically states that you can tell the difference between a male and female or a dog and a deer at about 75 to 100 yards. However, if you were looking across an open field and there was a half moon out, you could see a barn or a house 500 yards away.
The goggles come with comfortable flip-up headgear. |
Specifications: - Magnification: 1x
- Lens system element: f1.2, 25mm
- Field of view: 40 degrees
- Battery life: 60 hours without IR
- Range of focus: 0.25m to infinity
- Power supply: 1 3-volt lithium or 1 AA battery
- Resolution: 55 to 72 lp/mm
- Diopter adjustment: +/- 5
- Controls: Digital
- Automatic brightness control: Yes
- Infrared illuminator: Built-in standard
- IR indicator: LED on/battery low
- Dimensions: 6.3 by 2.4 by 4 inches (W x H x D)
- Weight: 1.05 pounds
- Warranty: 2 years
