Infrared Lens is a rising technology with a limited range of applications. However, with the trend in security, Infrared Lens will rapidly expand.
Infrared lens uses special optical glass materials and modern optical design methods to eliminate the focus shift between visible light and infrared light, allowing both types of light to be imaged at the same focus point for a clear image. Currently, Infrared cameras on the market mainly use an infrared filter to switch between day and night modes. During the day, the filter blocks infrared light from reaching the CCD, enabling it to detect only visible light. At night or under poor lighting conditions, the filter stops working, allowing infrared light, reflected from objects, to enter the lens and be imaged by the CCD.
However, commonly a clear daytime image becomes blurry under Infrared conditions. This is because the wavelengths of visible and infrared light differ, causing the focus point to be different which results in a blurry image. The latest optical design methods, special optical glass materials, coatings, and advanced materials eliminate the focus shift between visible and infrared light. The special optical glass material addresses the clarity issue of infrared imaging, allowing light to be focused at the same point for both visible and infrared light. Special coatings ensure that infrared light penetrates the lens while suppressing ghosting and flares in backlit conditions, providing high-quality images with high contrast, even under unfavorable backlight conditions.
Infrared Lens has a wide range of applications. It can be used as a specialized lens for Infrared purposes or as a regular lens. Infrared lenses can be easily synchronized with conventional color cameras, white cameras, and day-to-night switchable cameras, depending on the application. White cameras do not have an infrared stop filter, and the sunlight spectrum contains infrared light, so even under daylight conditions, white cameras can be affected by infrared light. Therefore, using an Infrared Lens can significantly improve image quality.