Cooled Thermal Imaging
Optical performance matched to detector format, pixel pitch, cold-stop requirements, image circle and operating temperature.
MID-WAVE INFRARED • 3–5 μm
Custom MWIR Imaging Lenses
Custom MWIR lens assemblies and infrared optical components for cooled thermal cameras, gas detection and high-temperature sensing.
PRECISION MWIR OPTICS
Optics for Cooled Detectors and Demanding Applications
COE Sapphire provides custom MWIR imaging lenses and components for cooled thermal cameras, gas detection, high-temperature process monitoring, scientific instruments and long-range imaging. Each design is developed around the detector, spectral band, focal length, aperture, image quality and environmental requirements.
Gas and Spectral Sensing
Band-specific materials and coatings for gas detection, spectral measurement and scientific instruments.
Long-Range Systems
Resolution, thermal stability, stray-light control and opto-mechanical alignment considered as a complete system.
MATERIAL SELECTION
Infrared Materials Evaluated for the 3–5 μm Band
Germanium, silicon, zinc selenide, zinc sulfide and other infrared materials may be used individually or in multi-element combinations. Selection depends on wavelength coverage, refractive properties, thermal behavior, density, durability and manufacturability.
Germanium
High-index infrared material for custom MWIR lenses, windows and thermal imaging components.
Silicon
Lightweight infrared material considered for selected MWIR optics and compact imaging systems.
ZnSe and ZnS
Alternative infrared materials evaluated according to spectral range, thermal behavior and environmental requirements.
DESIGN THROUGH INSPECTION
Coordinated Optical and Mechanical Manufacturing
Support may include optical layout, material selection, tolerance analysis, stray-light considerations, housing interfaces and manufacturability review. Components can be supplied with band-specific antireflection coatings developed for the required angle and transmission range.
Precision Manufacturing
Grinding, polishing, diamond turning where appropriate, centering and precision machining for infrared components.
Optical Coatings
AR and protective coating designs coordinated with the substrate, wavelength range and operating environment.
Verification
Dimensional measurement, surface evaluation, interferometry, spectral transmission, centration and assembly-level testing as required.
MWIR LENS VERIFICATION
Assembly-Level MTF and Optical Metrology
Measurement planning supports the transition from prototype MWIR optics to repeatable lens production.
MTF Evaluation
Image performance testing can be coordinated with detector format and system requirements.
Optical Metrology
Interferometric and dimensional inspection provide traceable component-level verification.
Integrated Assemblies
Optical, mechanical and coating requirements are verified as part of the finished assembly.
Discuss Your MWIR Imaging System
Provide the detector, spectral band, focal length, F-number, field of view, operating temperature and quantity.