Effects of night vision technology on perception
Low-light night vision technology, also known as image enhancement technology, is a photoelectric imaging technology that uses night vision goggles with image intensifier tubes to enhance the target image under weak light for observation. Low-light night vision device is currently the night vision equipment with the largest production volume and the most widely used abroad.
Infrared night vision technology is divided into active and passive. Active infrared night vision technology is a night vision technology that implements observation by actively illuminating and using the infrared light reflected by the target to reflect the infrared source. The corresponding equipment is an active infrared night vision device. Active infrared night vision technology has clear imaging and low cost. Passive infrared night vision technology is an infrared technology that realizes observation by means of infrared radiation emitted by the target itself. Simply put, it is to image according to different temperatures. The resolution is very low, but it has its special purpose.
Most Russian night vision devices belong to the third generation of low-light night vision devices. The semiconductor material of the photocathode has been improved, making it sensitive to low-light and infrared, and the infrared night vision device and low-light night vision device are unified on one instrument. , It functions as a low-light night vision device at night on a sunny day, and emits infrared rays at night in rainy and foggy days to function as an active infrared night vision device, and the effective distance is farther than that of the second generation.
At present, the development of thermal imaging technology is also very fast. However, due to technical problems such as high cost, poor imaging quality, and inaccurate target recognition, the United States and Russia have not equipped it in large quantities in the military.
Passed the test: the monocular night vision device is generally in the case of ignoring light (no visible light, you can't see your fingers when you reach out), it can only be about 10 meters without the transmitter, and it can see about 50 meters with the transmitter. The binocular night vision device is different from the distance model You can see about 50-100 meters. In visible light (twilight such as: starlight, moonlight, street light, Puyun), you can see hundreds of meters to several kilometers.
