Precision IR Focusing Optics
ZnSe Aspheric Lens Dia 25.4mm EFL 50mm for 4um IR Systems
High-precision ZnSe aspheric lens (Dia 25.4mm, EFL 50mm @ 4um). High NA 0.22 for diffraction-limited IR beam focusing. Request a quote today.
Product Overview
ZnSe Aspheric Lens Dia 25.4mm EFL 50mm for 4um IR Systems
Engineered for high-performance thermal imaging, spectroscopy, and mid-infrared laser beam shaping, the iroptical precision Zinc Selenide (ZnSe) aspheric lens delivers diffraction-limited performance at a design wavelength of 4.0 μm. By eliminating spherical aberration inherent in conventional spherical optics, this optical component achieves superior spot size accuracy and maximum energy concentration for critical mid-wave infrared (MWIR) applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Substrate Material | CVD Zinc Selenide (ZnSe) |
| Design Wavelength | 4.0 μm |
| Diameter (D) | 25.40 mm (+0.0/-0.1 mm) |
| Clear Aperture (φe) | > 24.00 mm |
| Effective Focal Length (EFL) | 50.00 mm |
| Back Focal Length (BFL) | 47.95 mm |
| Center Thickness (Tc) | 5.00 mm |
| Edge Thickness (Te) | 3.88 mm |
| Numerical Aperture (N.A.) | 0.22 |
Applications
This high NA 0.22 ZnSe lens is optimized for focusing mid-infrared laser sources, non-contact industrial temperature measurement, thermal imaging optical engines, and gas sensing instruments requiring high throughput and tight beam waist profiles.
Customization & Service
In addition to our extensive in-stock selection for rapid prototyping, iroptical provides full optical fabrication services. We offer custom anti-reflective (AR) coatings tailored to specific spectral bands, modified focal lengths, and custom mounting options to meet exact OEM integration requirements.
Solving Delivery & Technical Challenges
Managing strict project timelines and demanding optical tolerances can slow down development. iroptical mitigates these risks with guaranteed quality control, comprehensive spectral testing, and controlled lead times. Explore our comprehensive infrared optics collection, select standard laser optics for immediate dispatch, or consult our engineering team for custom IR window and lens configurations. Contact us at sales@iroptical.com to request technical support or a fast quotation.
Technical Parameters
Detailed specifications are not available for this product yet. Please contact the team for application guidance.