Athermal IR Lenses
Optical systems stable to temperature changes. Ideal for aerospace and mobile applications.
In conditions of extreme temperature fluctuations, typical for aerospace, defense, and outdoor applications, conventional optical systems are subject to thermal focus drift. This occurs due to changes in the refractive index and linear dimensions of materials when heated or cooled, leading to image blurring and loss of precision.
Athermal IR Lenses from «Atlant Optics» are engineered solutions designed to automatically compensate for these thermal effects. We create optical systems that maintain sharp focus and high image quality across a wide range of operating temperatures — from -40°C to +80°C and beyond.
Our solutions are based on a combination of:
Advantages of Athermal Lenses:
In conditions of extreme temperature fluctuations, typical for aerospace, defense, and outdoor applications, conventional optical systems are subject to thermal focus drift. This occurs due to changes in the refractive index and linear dimensions of materials when heated or cooled, leading to image blurring and loss of precision.
Athermal IR Lenses from «Atlant Optics» are engineered solutions designed to automatically compensate for these thermal effects. We create optical systems that maintain sharp focus and high image quality across a wide range of operating temperatures — from -40°C to +80°C and beyond.
Our solutions are based on a combination of:
- Optical materials with compensating thermal coefficients. We use combinations of crystals (Ge, Si, ZnSe, ZnS) and glasses whose optical properties change in opposite directions with temperature.
- Mechanical elements made of materials with low coefficient of thermal expansion (CTE). For example, invar or special composites that minimize the change in geometric dimensions of the optomechanical unit.
Advantages of Athermal Lenses:
- Constant focus: No need for manual or automatic refocusing when temperature changes.
- High reliability: Critical for systems where maintenance is impossible (e.g., in space).
- System simplification: Eliminate the need for complex active compensation systems.
- Optics for spacecraft and satellites (including participation in Luna 25, ExoMars, ISS programs).
- Thermal imaging sights and cameras for UAVs and ground vehicles.
- Mobile tracking and surveillance systems.