Talking about the Misunderstanding and Future Trend of Laser Night Vision Technology

Night vision monitoring means that the camera displays relatively clear target images at night or in low-light environments. The technology uses photoelectric imaging devices to achieve night-time monitoring of the target. Night vision technology is mainly divided into active infrared technology, passive infrared technology, low light night vision technology. Since the active infrared technology was developed by the Bell Labs of the United States in the 1960s, the level of technology has experienced rapid development, from infrared light bulbs whose photoelectric conversion efficiency is only 5%, to laser infrared illumination modules whose luminous efficiency is now more than 60%. The active infrared night vision field now mainly includes LED infrared technology. LED infrared technology mainly uses LED infrared light of 850nm wavelength as the illumination source of surveillance cameras, and the luminous efficiency is up to 30%.

Ordinary infrared cameras are inexpensive and have a high degree of market penetration. They are mainly used for cell surveillance, corridor surveillance, and some short-range, short-range surveillance sites. At the same time, due to the low barriers to product entry, there is a mixed bag and the quality of products is uneven. Due to the physical limitations of the technology itself, the exposure distance of common LED infrared lamps is difficult to break through 100 meters. These problems need to be resolved through the promotion of laser night vision technology.

The development of laser night-vision technology has come a long way and has achieved remarkable achievements. However, people still have some misunderstandings about laser night-vision technology. How to break the traditional shackles and break the misunderstanding of laser night-vision technology? , has become an important problem in the development of laser night vision field. In response to this problem, the author specifically consulted with Mr. Yu Yanqing, who is the first to participate in the laser night vision industry in China and has years of rich experience in R&D and sales, and Mr. Yu Yanqing, the deputy general manager of Puwei Technology Co., Ltd., to answer for us. Mr. Wang has many years of marketing experience in the field of security, especially in the field of laser night vision, I believe his point of view will certainly help us to understand laser night vision technology, to get rid of the development errors of laser night vision.

Beijing and Puwei Technology Co., Ltd. Deputy Chief Yu Yanqing: I personally think that the traditional concept of laser night vision needs to be changed. Apart from the defects that traditional laser products leave behind, there are also some misconceptions about lasers. It is believed that laser radiation damages the human body. In fact, laser light can be seen everywhere in people's lives. For example, laser copiers, printers, and laser scanners on supermarket checkout desks have all proved to be harmless to the human body and have good results and long life.

The laser is a point light source. It has an effect on people in the absence of treatment. If it is to become a product, it needs to be homogenized and expanded to make the energy distributed in a relatively large range. The laser energy per unit area is very high. Small, natural has no effect on people.

At present, there is a new saying that lasers have a slower speed in the process of expanding the beam. It takes 4 to 5 seconds to affect normal use. This is also a misunderstanding of the use of laser. In order to ensure the service life of the laser, laser products generally have a delayed start of the circuit. The laser lamp requires a start time of 1~5 seconds depending on the distance of the illumination distance. It is not necessary for the laser beam to be so long. time.

Laser Night Vision has a unique GHT HD lens group super-homogenization and optical power control technology to achieve excellent lighting effects, can be high-definition imaging at night dark state. The unique DSS digital lighting angle control technology and Z-super laser angle and imaging magnification matching algorithm make the lens close to the target, the laser intelligent automatic follow-up, display the target with the best angle and illumination, tracking response time <30ms . The independent photosensitive control ensures that the camera's color turning black and the laser switch are accurately synchronized, and the laser night vision function is automatically turned on and off according to the degree of external light. Can be used with 360-degree high-precision PTZ, to achieve all-round monitoring.

Due to the large market share of infrared light cameras, people are still not familiar with the emerging laser cameras. The advent of laser surveillance cameras has solved the shortcomings of infrared light cameras. What advantages do laser surveillance cameras have over infrared cameras?

First of all, the laser imaging distance is far away and the clarity is higher. Although infrared cameras can see images at night, they are often unclear. In addition, the monitoring distance of ordinary infrared cameras is very limited, and it is not feasible in some demanding security monitoring sites. Laser surveillance cameras, on the other hand, can ignore the intensity of light. Through laser infrared components and ultra-low light components, they can achieve 100 meters and kilometers of night vision even in a completely dark environment. Ultra-distant fill light distance, easy to match a variety of telephoto lenses, make up for the infrared light camera even with a telephoto lens can only be close-range imaging dilemma, to achieve a true long-range day and night weather imaging.

Second, laser surveillance cameras have a long life. Laser surveillance camera life is 3 times that of ordinary infrared light cameras. In the environment that requires 24 hours of monitoring, laser surveillance cameras have absolute advantages. Again, the laser surveillance camera automatically adjusts the lens focal length. Many laser surveillance cameras have certain intelligent functions. It can automatically adjust the length of the lens according to the object's distance and speed to provide clear image quality.

At the same time, the laser camera also has a low carbon green function. The traditional infrared lamp camera has a large amount of heat dissipation, consumes much power, and the internal heat is not emitted, causing the fuselage to overheat, which seriously affects the lifespan of the electronic components in the monitoring camera, and the laser surveillance camera completely solves this hidden trouble.

In order to find the advantages in the comparison, the night vision video surveillance technology also needs to find “dark horses” and outstanding products in the comparison. From the perspective of price and technology, the night vision video surveillance technology has powerful technical advantages and quality advantages, with the application of the future. The gradual deepening will set off a wave of changes in the security surveillance industry.