Infrared Zinc Selenide Lens
Infrared Zinc Selenide Lenses are precision optical components designed for MWIR and LWIR infrared transmission, focusing and imaging applications in thermal imaging systems, CO₂ laser systems and infrared optical equipment. Manufactured from high-purity zinc selenide (ZnSe) substrates with excellent infrared transmission, low absorption and stable optical performance, these lenses provide efficient infrared light focusing and reliable imaging performance. Chenyu Optics manufactures infrared zinc selenide lenses uncoated or with IR AR, MWIR AR, LWIR AR and CO₂ laser AR coatings.
Infrared Zinc Selenide Lens Overview
Infrared Zinc Selenide Lenses are precision optical components designed for MWIR and LWIR infrared transmission, focusing and imaging applications in thermal imaging systems, CO₂ laser systems and infrared optical equipment.
By using high-purity zinc selenide substrates with excellent infrared transmission, low absorption and stable optical performance, infrared zinc selenide lenses provide efficient infrared light focusing, low optical loss and reliable imaging performance. They are widely used in thermal cameras, infrared imaging systems, CO₂ laser processing equipment, infrared sensors and scientific optical instruments where high-performance infrared transmission is required.
Chenyu Optics supports custom infrared zinc selenide lens manufacturing according to customer drawings, including custom focal length, diameter and coating design for prototype and repeat production.
Key Advantages of Infrared Zinc Selenide Lens
CO₂ Laser & Thermal Imaging Systems
Infrared zinc selenide lenses are widely used for efficient infrared focusing in thermal cameras, CO₂ laser processing equipment and infrared measurement systems.
Typical Specifications of Infrared Zinc Selenide Lens
| Material | Zinc Selenide (ZnSe) / Custom Infrared Optical Substrate Available |
|---|---|
| Optical Function | Focusing, collimating and imaging infrared wavelengths |
| Coating Options | Uncoated / IR AR Coating / Broadband IR AR Coating / MWIR AR Coating / LWIR AR Coating / CO₂ Laser AR Coating / Custom Optical Coating |
| Optical Characteristics | High infrared transmission, low absorption, high refractive index, excellent surface quality, stable infrared optical performance |
| Transmission Range | Approx. 0.6 μm – 16 μm |
| Refractive Index | Approx. 2.4 @ 10.6 μm |
| Focal Length | Custom |
| Diameter | Custom |
| Thickness | Custom |
| Surface Quality | 60-40 to 10-5, depending on requirement |
| Flatness | λ/4 to λ/10, depending on requirement |
| Clear Aperture | Available |
| Angle of Incidence (AOI) | Custom |
Lens Geometry & Optical Principle
Why Choose Chenyu Optics for Infrared Zinc Selenide Lens
Chenyu Optics focuses on drawing-based precision infrared lens manufacturing for thermal imaging, CO₂ laser and infrared sensing systems. We support prototype verification, small-batch production and repeat manufacturing for non-standard infrared zinc selenide lenses.
Manufacturing Capability for Infrared Zinc Selenide Lens
Precision Polishing
Precise optical processing and surface polishing to achieve accurate focal performance and stability in zinc selenide substrates.
Infrared Coating
IR AR, MWIR AR, LWIR AR and CO₂ laser AR coating options for thermal imaging and laser processing applications.
Inspection & Packaging
Dimensional inspection, surface review, infrared optical testing and protective packaging before shipment.
Custom Manufacturing Options for Infrared Zinc Selenide Lens
Dimensions & Focal Length
Custom focal length and diameter can be manufactured according to customer drawings and infrared optical design requirements.
Surface & Optical Quality
Surface accuracy and surface quality can be selected according to imaging and laser performance requirements, supported by ZnSe's low absorption and high refractive index.
Coating & Wavelength Design
Uncoated, IR AR, MWIR AR, LWIR AR, CO₂ laser AR and custom optical coatings can be specified for thermal imaging, sensing or laser processing applications.
Zinc Selenide Lens Material Comparison
| Zinc Selenide (ZnSe) | Silicon (Si) | Germanium (Ge) | Chalcogenide Glass | |
|---|---|---|---|---|
| Transmission | Visible to LWIR, approx. 0.6 – 16 μm | MWIR to LWIR, approx. 1.2 – 15 μm | MWIR to LWIR, approx. 2 – 14 μm | MWIR to LWIR, approx. 1 – 12 μm (composition dependent) |
| Refractive Index | Approx. 2.4 @ 10.6 μm | Approx. 3.42 @ 4 μm | Approx. 4.0 @ 10 μm | Approx. 2.5 – 2.8, composition dependent |
| Mechanical Notes | Good mechanical strength, low absorption, widely used in CO2 laser optics | Lightweight, cost-effective, good thermal stability | Denser and heavier, higher cost, sensitive to temperature drift | Suited to precision molded lenses, lower hardness |
| Typical Use | CO2 laser cutting and welding optics, MWIR/LWIR imaging | Thermal imaging, LWIR cameras, cost-sensitive IR systems | High-performance thermal imaging and MWIR/LWIR optics | Compact molded IR lenses for consumer thermal devices |
Applications of Infrared Zinc Selenide Lens
Thermal Imaging Systems
Efficient focusing for thermal imaging applications.
CO₂ Laser Processing Systems
Low-absorption focusing for CO₂ laser processing equipment.
Infrared Cameras
Precision imaging optics for infrared camera systems.
MWIR & LWIR Optical Systems
Stable mid- and long-wave infrared optical performance.
Infrared Sensors
Precision optics for infrared sensor assemblies.
Laser Cutting & Welding Equipment
Reliable focusing performance for laser cutting and welding systems.
Infrared Zinc Selenide Lens FAQ
What is the function of an infrared zinc selenide lens?
An infrared zinc selenide lens is used to focus, collimate and transmit infrared wavelengths in thermal imaging, CO₂ laser and infrared optical systems.
Why is zinc selenide used for infrared lenses?
Zinc selenide provides excellent MWIR and LWIR transmission, low absorption, high refractive index and stable optical performance, making it suitable for demanding infrared applications.
What coating options are available for infrared zinc selenide lenses?
Infrared zinc selenide lenses can be manufactured with IR AR coatings, MWIR AR coatings, LWIR AR coatings, CO₂ laser AR coatings and custom optical coatings for different wavelength requirements.
Can custom infrared zinc selenide lenses be manufactured?
Yes. Chenyu Optics provides customized zinc selenide lenses with different focal lengths, diameters, thicknesses, surface quality, coatings and optical specifications according to system requirements.
What information should I provide for a quotation?
Please provide focal length, diameter, thickness, surface quality, coating requirement, quantity and drawing if available.
Where can I learn more about infrared lens design?
Additional information on infrared lens design can be found from Edmund Optics.
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Need Custom Infrared Zinc Selenide Lenses?
Send us your drawing, focal length, diameter and coating requirements. Chenyu Optics will review the optical and mechanical specifications and provide a suitable zinc selenide lens manufacturing suggestion.