Compared with the general Kitchen Knives, utility knives are more compact and lightweight, with the advantages of convenient portability, suitable for outdoor using. The Utility Knife can be divided into the blade surface fixing, the blade face is not fixed, folding, telescopic, and pocket Knife,etc. Folding utility knives and telescopic utility knives are also found in the work, cutting a variety of small materials, kaifeng documents, cutting tape, cut rope and so on. This type of tool blade is thinner but with a sharp edge. According to various usage, we have designed a variety of utility knives,it must be one the suitable for you. Utility Knife Utility Knife Kitchen,Utility Knife,Serrated Utility Knife,Pocket Utility Knife YANGJIANG TRI-WIN INDUSTRY & TRADE CO.,LTD , https://www.triwintableware.com
The IR lens is an infrared lens. It uses a special optical glass material and uses the latest optical design method to eliminate the focal plane offset of visible light and infrared light. Therefore, the light from the visible light to the infrared light can all be in the same focal plane. Imaging allows the images to be clear. In addition, IR infrared lens also uses a special multi-layer coating technology to increase the transmittance of infrared light, so the camera with IR lens is farther away than the camera with an ordinary lens, and the effect is good. 
background
In order to meet the 24-hour surveillance requirements, many sites not only require cameras to perform surveillance tasks during the day, but also provide clear images at night. In recent years, infrared cameras and infrared lamps have been widely used, and the price of day and night cameras and high-definition color cameras have declined to a certain extent, giving lens manufacturers a large number of market opportunities. The IR Surveillance Camera Lens was born like this.
advantage
1, IR surveillance camera lens focus infrared light consistent with visible light, imaging is more clear.
2, IR lens adopts the latest optical design and special optical glass material (LD optical glass) technology, eliminating the focal plane shift of visible light and near infrared light.
3, IR lens using a special ED lens, to solve the ordinary electric zoom lens in the infrared light under the "running coke" problem.
4, IR lens is through a special coating design and the use of special optical materials so that the 350-950nm band light can be a good correction of color, IR corresponding to the corresponding technology, 24 hours a day without adjustment Jiao. Therefore, the monitoring system can be clearly imaged with the help of an infrared light source.
Application area
IR lenses have a wide range of applications. They can be used for both infrared and special applications as well as ordinary lenses. In other words, according to different occasions, the infrared-compatible lens can be flexibly used in conjunction with conventional color cameras, black and white cameras, and day and night conversion cameras. Black-and-white cameras do not have infrared cut-off filters, but the spectrum of daylight also contains infrared light, so even in daylight conditions, black-and-white camera imaging can suffer from infrared interference. Therefore, using an infrared lens can effectively improve the imaging quality.
future development
IR infrared lens technology is not a problem, and its development may also affect the price. What is certain is that the camera lens of the infrared surveillance camera is still a product with a large demand in the next few years. Once the output goes up, the compression of its cost will naturally affect the price reduction. IR surveillance camera lens will be the mainstream of the future.
concept