Day and night conversion of infrared lens

Infrared lenses on the Chinese market mainly use infrared filters to switch between day and night, that is, open the filter during the day to block infrared rays from entering the CCD, so that the CCD can only sense visible light; night vision or poor lighting conditions , The filter stops working and no longer blocks infrared rays from entering the CCD. After being reflected by the object, the infrared rays enter the lens for imaging. To However, in practice, infrared lenses often show clear images during the day, but the images become blurry under infrared light conditions. This is because the wavelengths of visible light and infrared light (IR light) are different, and the difference in wavelength will cause the focal position of the image to be different, resulting in virtual focus and blurred images. To The IR lens uses the latest optical design methods, special optical glass materials, and advanced technologies such as special films and materials to eliminate the focal plane shift of visible light and infrared light. To The special optical glass material solves the problem of clear imaging of the infrared camera corresponding to the infrared, so that the light from the visible light area to the infrared light area can be imaged at the same focal plane position to achieve a clear image; the special film technology allows the infrared light to be exhausted. Possible to pass through; Multi-layer coating can also suppress the occurrence of ghosts and flashes under backlight conditions to the greatest extent, and can obtain relatively high-contrast superior images even under adverse conditions such as backlighting. To The IR lens has a very wide range of applications, which can be used for special purposes corresponding to infrared or as an ordinary lens. To In other words, depending on the use occasion, the infrared corresponding lens can be used flexibly with the conventional infrared camera. To This product does not have an infrared cut filter, but the spectrum of daylight also contains infrared light, so even in daylight conditions, the imaging of the infrared camera will be interfered by infrared rays. Therefore, the corresponding infrared lens can effectively improve the image quality.