Understand infrared optical technology, know infrared lens

Infrared optical technology refers to the technical system that uses infrared radiation to realize image sensing, target detection, navigation and positioning and other functions. Infrared optical technology is widely used in military, aerospace, medical, environmental monitoring and other fields. The infrared lens is one of the most important components in the infrared optical system, which undertakes the important task of collecting, focusing and transmitting infrared radiation.

Infrared lenses are key devices that convert infrared radiation into visible light images. Traditional optical lenses cannot pass through infrared radiation, because infrared radiation has a longer wavelength and poor penetration. Therefore, infrared lenses need to use special materials and design methods to achieve focusing on infrared radiation.

An infrared lens is usually composed of an infrared lens group, a supporting structure, and a lens housing. Among them, the infrared lens group is the key component to realize the infrared radiation focusing. It usually consists of a series of lenses of different materials and shapes to meet the infrared radiation focusing requirements of a specific band. The material selection and manufacturing process of the infrared lens have an important impact on the performance of the infrared lens.

The material selection of the infrared lens is determined according to the required infrared band range. Common types of infrared materials include zinc sulfide, cadmium sulfide, lead sulfide, and zinc selenide, among others. These materials have good infrared transmission properties and can effectively transmit infrared radiation to the camera sensor.

In addition, the manufacturing process of the infrared lens also plays an important role in its performance. Due to the particularity of the infrared optical system, special attention should be paid during the manufacturing process to avoid excessive temperature and thermal stress, so as not to damage the lens. At the same time, using proper polishing and coating process can improve the surface quality and transmittance of optical lenses.

In the infrared optical system, in addition to the infrared lens, there are other key components, such as infrared filters, infrared detectors, etc., which together constitute a complete infrared optical system. Infrared filters are mainly used to adjust the transmittance of the infrared band, allowing only specific bands of infrared radiation to pass through. Infrared detectors are used to convert infrared radiation into electrical signals for the acquisition and transmission of infrared images.

Infrared optical technology is widely used in military and aerospace fields. For example, infrared sensors can track and identify targets by detecting infrared radiation emitted by targets, which helps to improve the accuracy and target hit rate of missiles. In addition, infrared optical technology can also be used in devices such as night vision devices, infrared telescopes, and infrared thermal imagers to provide powerful observation and detection capabilities.

In the medical field, infrared optical technology also has a wide range of applications. For example, infrared imaging technology can detect diseases or tumor lesions by observing the infrared radiation emitted by human tissues, and realize non-invasive and rapid diagnosis. In addition, infrared laser can also be used in surgical treatment, such as infrared laser cutting and ablation therapy.

In short, infrared optical technology is an important optical technology. Through the development and application of infrared lenses, the detection, sensing and imaging of infrared radiation can be realized. The infrared lens is the core component of the infrared optical system, and its material selection and manufacturing process have an important impact on the performance of the entire system. With the continuous advancement of science and technology and the continuous application of infrared optical technology, it is believed that infrared optical technology will have more innovations and developments in various fields.