Night Vision Tube Selection Guide: Choose the appropriate option for Your Needs
Sales Engineer: Grace Gao
Email: grace@bri-elec.com
WhatsApp: 0086-199 2997 5286
Night vision technology is crucial for night fighters, and choosing the right image intensifier tube is essential. In this article，we'll explore the key factors to consider when selecting a tube that suits your requirements.
Night vision Tube, or called image intensifier tube(IIT). It is a vacuum tube device for increasing the intensity of available light in an optical system to allow use under low-light conditions, such as at night, to facilitate visual imaging of low-light processes or for conversion of non-visible light sources, such as near-infrared or short wave infrared to visible. They operate by converting photons of light into electrons, amplifying the electrons (usually with a microchannel plate), and then converting the amplified electrons back into photons for viewing. The image intensifier tube is the standard core component of the low-light night vision device.
The intensifier tube is the heart of all night vision equipment and often determines the quality of the equipment. There are many factors to consider when purchasing an image intensifier tube. You can refer to the following aspects to find the tube that best suits your needs.
1. Green Phosphor(P43) or White Phosphor(P45): The Visual Difference
Image intensifier tubes are available in two main variants: green phosphor and white phosphor. While the green phosphor provides the traditional monochromatic green image, the white phosphor tubes offer a pale bluish-green image that appears more white. Consider your visual preferences and requirements to determine which phosphor type suits your needs.
2. Figure of Merit, FOM (Figure of Merit) is used to determine the overall performance of an image intensifier tube and is calculated as the product of the resolution and signal-to-noise ratio of the image intensifier. A higher FOM value for an image intensifier tube means a better performance of the device.
3. Autogated tubes gate the image intensifier within so as to control the amount of light that gets through to the microchannel plate. The gating occurs at high frequency and by varying the duty cycle to maintain a constant current draw from the microchannel plate, it is possible to operate the tube during brighter conditions, such as daylight, without damaging the tube or leading to premature failure.
4. The tube gain (which is also referred to as brightness gain or luminance gain) is the magnitude, or number of times the image intensifier amplifies the light input. In practice, gain is expressed as a ratio between the output and input light level of the tube, usually in units of decibels (dB). The greater the gain, the brighter the output image relative to the input image. However, high gain also increases the likelihood of image distortion and noise, which can result in a grainy image with reduced clarity and resolution. To control gain, image intensifier tubes often include a gain control function, either manually or automatically. Manual gain control allows the user to adjust the gain level according to the changing environment and operator preference. On the other hand, automatic gain control (AGC) adjusts the gain level based on the ambient light level to ensure a consistent level of brightness and contrast, regardless of the changing lighting conditions.
In the field of night vision, the word "generation" refers to a major advancement in technology. The higher the generation, the more complex the night vision technology is, which also means better quality.
Our factory has recently launched the GEN III night vision tube, which is a top-of-the-line third-generation night vision tube that has achieved excellent levels in image quality, resolution, and sensitivity. Whether you are observing at night, exploring the wilderness, or hunting expeditions, it can provide clear and stable night vision images to improve your safety and efficiency. In addition to these tubes, we also provide a range of options, such as P43/ P45 image intensifier tubes, and different FOMs such as 1400/1600/1800/2000/2200+, with autogating or not, with manual gain or not. Whatever your night vision needs, we have a solution for you to meet the needs of professional users and amateurs.
Our factory promises you that the FOM value of our tube must be true and accurate because our factory can provide professional tube test report.
Good news currently we have Gen2+ white phosphor FOM1600 with auto gating image intensifier tubes in stock, so the delivery time is definitely very fast.
If you are interested in this product, we encourage you to visit our store.
Our factory ensures you we must do anything we can do to provide the best solution in quality, price and delivery.
Sales Engineer: Grace Gao
Email: grace@bri-elec.com
WhatsApp: 0086-199 2997 5286
