Zinc Selenide Plano-Concave Lens GL73-025-050-IR2
A plano-concave lens has one flat surface and one concave surface. It is commonly used for beam expansion, projection and increasing the focal length of optical systems.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Back focal length BFL | -50.8 mm |
| Diameter | 25.40 mm |
| Center Thickness Tc | 2.00 mm |
| Edge thickness Te | 3.20 mm |
| Radius R1 | -70.10 mm |
| Focal Length EFL | -50.00 mm |
| Coating | Ravg<1.5% @8~12μm |
| 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% |
| Lens centering error | <3arcmin |
| Surface Finish | 60/40 |
| Edge Bevel [45°] | 0.2mmX45° |
| RoHS | Compliant with standards |
Key Features
Datasheet
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Supplier Information
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