1-25mm Chalcogenide IR Lenses WIRG04/06/08 for Thermal Imaging & Night Vision
1-25mm Chalcogenide IR Lenses WIRG04/06/08 for Thermal Imaging & Night Vision
Chalcogenide Materials
Chalcogenide materials have a wide transmission range from 0.5μm to 25μm, low refractive index temperature coefficient, low dispersion, and versatile glass compositions. These materials allow higher production efficiency by lowering production costs and consumption of scarce resources like Germanium and can be manufactured in batches using precision molding technology.
Why is this material ideal for Mid-IR Optics?
- Wide transmission range (0.5 – 25μm).
- Low refractive index temperature co-efficient.
- Low dispersion.
- Versatile glass composition and properties.
In-Comparison with Ge, ZnSe & other IR Materials
- Advantageous in resource utilization.
- Lower manufacturing and processing costs.
- Lower consumption of scarce resources like Ge.
- Lenses can be manufactured in batches using precision molding technology than single. point diamond turning for Ge, ZnSe and other IR materials.
Precision Molding Technology and Chalcoge
nide Glass
- Can make glass into flat, spherical and aspherical optical lenses.
- Has higher production efficiency.
- Lower production costs.
- Manufacturing of chalcogenide glass lenses is done in batches.
Available Sizes
- Diameter/Dimension: 10 – 100mm.
- Thickness: 2 – 30mm.
Wavelength Opto-Electronic currently produce the following types of IR chalcogenides:
| Grade | Glass Composition | ρ (g/cm³) |
| WIRG01 | Ge₃₃As₁₂Se₅₅ | 4.42 |
| WIRG02 | Ge₂₂As₂₀Se₅₈ | 4.41 |
| WIRG03 | Ge₂₀Sb₁₅Se₆₅ | 4.71 |
| WIRG04 | As₃₀Sb₄Se₆₃Sn₃ | 4.72 |
| WIRG05 | Ge₂₈Sb₁₂Se₆₀ | 4.68 |
| WIRG06 | As₄₀Se₆₀ | 4.63 |
| WIRG07 | Ge₁₀As₄₀Se₅₀ | 4.49 |
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