Uncoated ZnSe Plano-Concave Lens | Dia 25.4mm, FL -50mm @10.6um
Uncoated CVD ZnSe plano-concave lens (Dia 25.4mm, FL -50mm) for 10.6um IR spectroscopy & beam expansion. Ready to ship at iroptical. Request a quote!
Product Overview
Uncoated ZnSe Plano-Concave Lens | Dia 25.4mm, FL -50mm @10.6um
The iroptical CVD Zinc Selenide (ZnSe) Plano-Concave Lens is an essential optical element engineered for beam expansion, light projection, and focal length extension in thermal imaging and mid-to-far infrared systems. Transmitting efficiently across the 0.6um to 16um spectral range, this 25.4mm optical element offers extremely low bulk absorption at the design wavelength of 10.6um. Manufactured from high-purity chemical vapor deposition material, our ZnSe Optics deliver exceptional wave front performance and minimal optical distortion for demanding infrared optical setups.
Technical Specifications
| Material | Diameter (mm) | Focal Length (mm) | Back Focal Length (mm) | Center Thickness (mm) | Edge Thickness (mm) | Radius of Curvature (mm) | Coating |
|---|---|---|---|---|---|---|---|
| CVD ZnSe | 25.4 (+0.0/-0.1) | -50.0 (+/-1%) | -50.83 | 2.0 (+/-0.2) | 3.20 | -70.13 | Uncoated |
| Design Wavelength | Clear Aperture | Surface Flatness | Surface Quality | Centration | Bevel (mm) | Diameter Tolerance | Thickness Tolerance |
| 10.6um | Greater than 80% | lambda/2 at 632.8nm | 60-40 Scratch-Dig | Less than 3 arcmin | Less than 0.2 x 45 deg | +0.0/-0.1mm | +/-0.2mm |
Typical Applications
Thanks to its negative focal length and high material homogeneity, this plano-concave lens is widely integrated into high-precision infrared analytical systems, including:
Infrared spectroscopy instruments (FTIR) and gas detection sensors
CO2 laser beam expanders and collimating optical trains
Thermal imaging optical setups and focal length reduction systems
Customization & Engineering Support
iroptical maintains an extensive inventory of off-the-shelf Plano-Concave Lenses and Infrared Optical Components to support immediate prototyping needs. Beyond standard geometries, our optical manufacturing facility provides tailored OEM solutions, including custom anti-reflection (AR) coatings optimized for 3-5um or 8-12um bands, custom mounting cells, and modified mechanical dimensions with high surface accuracy.
Eliminate Risk in Your Optical Design
Uncontrolled centration errors or inconsistent material purity can cause severe aberration and power loss in thermal systems. iroptical combines strict batch quality control with guaranteed lead times to protect your project deadlines. Contact our technical sales engineering team at sales@iroptical.com or submit an inquiry today to request custom quotes, CAD models, or volume pricing for immediate prototype delivery.
Technical Parameters
Detailed specifications are not available for this product yet. Please contact the team for application guidance.