Infrared Imaging and Thermal Imaging: Germanium lenses have a high transmittance of infrared light (2-16μm) and are widely used in infrared thermal imagers, infrared cameras and other equipment for nighttime observation, target detection and thermal distribution analysis.
Infrared temperature measurement: In infrared thermometer, germanium lens is used to focus the infrared radiation of the target object and realize non-contact temperature measurement.

Night vision equipment: Germanium lens is the core component of night vision devices, infrared sights and other equipment, which can provide clear images in low-light or no-light environments.
Infrared guidance: In the missile guidance system, germanium lens is used for the reception and processing of infrared signals to improve guidance accuracy.
Infrared Search and Tracking (IRST): used for military reconnaissance and target tracking to enhance battlefield situational awareness.

Non-destructive testing: germanium lenses are used in infrared thermal imaging inspection to detect overheating of equipment, material defects, etc. They are widely used in electric power, construction, aerospace and other fields.
Gas Detection: In infrared gas analyzers, germanium lenses are used to focus infrared light of specific wavelengths to detect gas concentration.

Medical Imaging: Germanium lenses are used in infrared thermal imaging medical equipment to assist in the diagnosis of inflammation, tumors, and other diseases, and provide a basis for diagnosis by analyzing the distribution of body temperature.
Surgical navigation: In minimally invasive surgery, infrared imaging technology combined with germanium lenses can realize real-time navigation and improve surgical precision.

Astronomical observation: Germanium lenses are used in infrared telescopes to observe the infrared radiation of stars, planets and other celestial bodies to study astrophysical phenomena.
Material science: In material analysis, infrared spectroscopy combined with germanium lenses can study the molecular structure and chemical bonding of materials.

Security monitoring: Germanium lenses are used in infrared surveillance cameras to realize all-weather monitoring.
Environmental monitoring: In meteorological observation, germanium lenses are used in infrared radiometers to measure atmospheric temperature, humidity and other parameters.
Advantages of germanium lens
High transmittance: high transmittance to infrared light, suitable for infrared applications.
Low dispersion: Reduces chromatic aberration and improves imaging quality.
High Temperature Resistance: Optical properties remain stable in high temperature environments.