🟦 Infrared Optics

Custom Infrared Optics for Thermal Imaging, Sensing & Defense Applications

 

 

 

At Yighen Ultra Precision, we specialize in the design, prototyping, and manufacturing of infrared optics (IR optics) for use in thermal imaging, gas sensing, infrared spectroscopy, night vision, and advanced surveillance systems.

Our IR optical components are precisely engineered to operate across the SWIR (0.9–1.7 µm), MWIR (3–5 µm), and LWIR (8–12 µm) spectral ranges. We support custom geometries, coatings, and system integration—ensuring optimal performance in demanding IR environments.

 

 

🔹 Types of Infrared Optical Components

  • IR Lenses (Spherical, Aspheric, Cylindrical)

  • IR Windows (Germanium, ZnSe, CaF₂, BaF₂, Sapphire)

  • Beam Expanders & Collimators

  • IR Filters (Bandpass, Longwave Pass, Notch)

  • Thermal Imaging Optics

  • SWIR/MWIR/LWIR Corrected Assemblies

  • Infrared Fresnel Lenses

  • Freeform IR Optics for Compact Modules

We offer both single-element and multi-element assemblies, including coated and bonded components for hermetic or ruggedized use.

 

 

🔹 Infrared Optical Materials

We work with a wide range of IR-grade materials to suit various spectral and mechanical needs:

Material Transmission Range Application Notes
Germanium (Ge) 2–14 µm High refractive index, ideal for LWIR imaging
Zinc Selenide (ZnSe) 0.5–20 µm Preferred for CO₂ laser optics, high transmittance
Zinc Sulfide (ZnS) 0.4–12 µm Durable, used in thermal imaging windows
Calcium Fluoride (CaF₂) 0.13–10 µm Low dispersion, excellent for SWIR to MWIR
Barium Fluoride (BaF₂) 0.15–12.5 µm Extended MWIR range, low refractive index
Sapphire 0.15–5.5 µm Scratch-resistant, ideal for harsh environments
Chalcogenide Glass (AMTIR, IG series) 1–12 µm Moldable, used in lightweight optics

 

 

🔹 Typical IR Optics Specifications

Specification Typical Value
Surface Accuracy λ/4 – λ/10 @ 10.6 µm
Surface Quality 40-20 to 20-10
Coatings AR, DLC, BBAR, Reflective (Au, Ag)
Centering Tolerance < 3 arcmin
Mounting Custom opto-mechanical housing and bonding available

We can also deliver optics with anti-fog, hydrophobic, or diamond-like carbon (DLC) coatings for outdoor or military-grade usage.

 

 

🔹 Industries We Serve

Industry IR Application
🛰️ Defense & Aerospace Night vision, thermal targeting, missile seekers
🔬 Life Sciences Spectroscopy, medical diagnostics (e.g., breath analysis)
🏭 Industrial Automation Non-contact temperature sensing, thermal QC
🚗 Automotive ADAS and driver-monitoring IR camera systems
🌡️ Environmental Monitoring Gas detection, flame sensors, greenhouse tracking

 

 

🔹 Why Choose Yighen for Infrared Optics?

✅ Full-spectrum IR coverage (SWIR to LWIR)
✅ Custom optics with military-grade ruggedization
✅ In-house coating, polishing, and testing
✅ CNC housing + IR lens assembly capabilities
✅ ISO-controlled process for volume consistency

Yighen’s optical engineers can support reverse engineering, custom IR system design, and rapid prototyping, from standalone IR lenses to full thermal modules.

 

 

🧠 FAQs

Q: Can you provide Germanium optics with DLC coating?
A: Yes, we provide Germanium lenses and windows with durable DLC coatings for rugged and high-humidity environments.

Q: What’s the lead time for custom infrared optics?
A: Prototype delivery typically ranges from 2–4 weeks depending on complexity. We support both low-volume development and mass production.

Q: Do you assist with IR system design?
A: Yes, we offer full optical + mechanical + coating design support, including simulation and thermal analysis.

 

 

 

 

 

 

🌫 Precision IR Optics – From Single Elements to Full Modules

Yighen provides custom IR optics across SWIR, MWIR, and LWIR bands, supporting a wide range of materials including Germanium (Ge), Silicon (Si), Zinc Selenide (ZnSe), Chalcogenide glass, and CaF₂.
Our IR lens production supports thermal imaging, sensing, defense, and industrial applications, with in-house coating and metrology for infrared-specific performance.

From single lenses to assembled IR modules, we deliver optics with high transmission, low thermal shift, and tight dimensional control.

🔵 Request a Custom IR Optics Quote
📩 Share your wavelength band, material, and mechanical specs — we’ll respond within 24 hours.

Want to explore our material list, coatings, and system integration capabilities?
📄 Download Our Infrared Optics Datasheet

Interested in our IR lens assembly or military-grade fabrication options?
👤 Learn More About Yighen

 

 

 

 

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