Digital technology has revolutionized the night vision industry and make night vision devices from military owned special equipment to consumer products /entertainment devices that ordinary consumers can also touch and affordable.
Well, historically, there are two technologies used in night vision equipment. The first night vision device was created in World War II for military tactic use and this traditional night vision devices use optoelectronic image enhancement, which works by sensing small amounts of infrared light that are reflected off objects and then electrically amplifying that light into a characteristic glowing green image. The later new technology in 20 century start using digital image enhancement, captures available light on a digital image sensor and then digitally enhances the images in a full-color display. In fact the two technologies are similar, all use image enhancement to make use of the dim reflect light from object than amplifying into image, but one is use the extremely high craftsmanship image intensifier tube while the other is use a complementary metal-oxide-semiconductor (CMOS) sensor.
（Image Intensifier Tube） （Digital CMOS Sensor）
Since the image intensifier tube night vision its core component – special electronic vacuum tube not only in high cost make the entire finished product price impossible to drop but also has a fatal weakness that fear for glare, when strong light like car light hits at night the tube will burn out.
So, most night vision device today employ a digital version of traditional optoelectronic image enhancement technology. Digital image enhancement technology result in smaller, lighter-weight, longer service life and more versatile night vision devices.
The work principle of digital night vision is convert the reflect light from the objective lens into a digital signal via the CMOS sensor, like the ones used in digital video cameras. The digital image is then enhanced electronically and magnified several times, then sent to an LCD display for viewing. The larger the CMOS sensor, the higher the resolution of the image you see.
Not only can directly view via the night vision device screen, the digital night vision device also can be connected to other devices, such as video cameras, for remote viewing. Digital night vision signals can also be stored digitally on SD card, USB drives or other storage devices. Some digital night vision devices feature Wi-Fi capability for easy sharing and live-streaming of videos and images to smart phones, computers etc.
Digital technology has revolutionized the night vision industry. CMOS sensor produced better images at lower costs, while the images from early digital night vision devices weren’t near as detailed as traditional optical images, current digital night vision has reached extremely high-resolution high-definition display in stead of the old-school glowing green images from image intensifier tube night vision.
SanHui Night Vision is one of the largest producers of digital night vision monocular, riflescope and goggles. Our first digital night vision #P1S-0540# was born in 2013 with own design patent, and which is also the first consumer night vision monocular produced and sell in the China market. Now we have series of digital night vision monocular with outstanding performance image, and records video in full 1080P HD video, record audio, moreover, with wide field of view in both daytime and nighttime absolute darkness conditions. They also include an IR illuminator with adjustable power setting for increase view distance at night or in dimly lit interiors, as well as a slot for micro SD card storage of photos and videos.
Post time: Mar-12-2020