Zinc Selenide Biconcave Lens GL74-025-025
A Biconcave Lens Consists of Two Concave Surfaces of Equal Curvature and Is Commonly Used for Beam Expansion, Projection and Increasing Optical System Focal Length
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Overview
Specifications
| Parameter | Value |
|---|---|
| Lens centering error | <3arcmin |
| Surface Finish | 60/40 |
| Edge Bevel [45°] | 0.2mmX45° |
| RoHS | Compliant with standards |
| Back focal length BFL | -25.8 mm |
| Diameter | 25.40 mm |
| Center Thickness Tc | 2.00 mm |
| Edge thickness Te | 4.30 mm |
| R1=R2 | -71.80 mm |
| Focal Length EFL | -25.40 mm |
| Coating | Uncoated |
| Material | CVD laser-grade zinc selenide (ZnSe) |
| Compatible lens mounting ring | PN35019-LM254-S |
| Diameter Error | +0.0/-0.1 |
| Center-thickness error | ±0.2 mm |
| Design Wavelength | 10.6μm |
| Focal Length Error EFL | ±1% |
Key Features
Datasheet
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Supplier Information
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