Trigger module: Automatically detects the presence of the vehicle in a specified area. Commonly used trigger methods include coil trigger, video trigger, infrared trigger, radar trigger, and laser trigger. At present, the most used triggering method in the charging system is coil triggering.
Imaging module: The use of imaging control and fill light technology, making the camera clear imaging all weather.
The principle of combining directional reflection with natural light improves the license plate recognition rate and positioning rate. With a high positioning rate, the recognition rate is also high. The camera imaging control technology and intelligent fill light technology ensure the imaging quality, free from the effects of headlights and light and shade, and provide clear imaging and high recognition rate.
Identification module: It is used to capture the image of a vehicle and uses image processing and pattern recognition technology to analyze and identify the captured image.
The license plate recognition technology applied to the urban road congestion charging system does not require installation of any on-board equipment, which can reduce a large initial investment. However, the congestion charging system requires very high accuracy for license plate recognition.
The transmission range of Zinc Selenide ZnSe-CVD is 0.5 - 20 µm.
ZnSe CVD used for high power CO2 laser optics at 10.6µm, for protective optics windows or optical elements in FLIR (forward looking infrared) thermal imaging equipment, optics for medical and industrial applications (optical plane parallel windows (plates, disks, blanks), wedged windows, optical meniscus, spherical and cylindrical lenses, prisms, resonator mirrors of CO2 laser).
The refractive index is near 2.4. Zinc Selenide has a very low absorbtion coefficient and is used extensively for high power infrared laser optic. It is non-hygroscopic.
Zinc Selenide (ZnSe) - transparent in wide spectral range from yellow (visible) to far IR. ZnSe material is a chemically inert, non-hygroscopic and highly pure product that is very effective in many optical applications due to its extremely low bulk losses, high resistance to thermal shock and stability in virtually all environments, easily machined.
Special care should be taken when handling Zinc Selenide as it is a toxic material. Always wear rubber or plastic gloves to avoid risk of contamination.
Zinc Selenide Co2 Laser Lens,Zinc Selenide Focusing Lens,25.4Mm Znse Lens,Zinc Selenide Lens
China Star Optics Technology Co.,Ltd. , https://www.opticsrealpoo.com