K9 Glass Meniscus Lens PG207-
The k9 meniscus lenses has excellent transmittance and optical performance. Used for preparing high-quality optical components such as telescopes, microscopes, etc. UM OPTICS provides a diameter of 2-300mm and a thickness of 0.12-60mm (with an accuracy of 20-10,1)/ 10L@633nm ）k9 meniscus lenses, equipped with four major processes: rubber disc polishing, high-speed polishing, circular polishing, and CNC polishing. Equipped with ZYGO, AFM, reflection and transmission inclinometers, 15 second angle measuring instrument, UV bonding centering system, non-contact laser thickness measuring instrument, 2D imaging instrument, and spherical diameter measuring instrument. Can be coated with MgF2, UV-AR, UV-VIS, VIS-EXT, VIS-NIR, NIR I, NIR II, Telecom NIR, SWIR, SWIR, YAG-BBAR and other film systems.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Dia | 2-300 mm |
| Focal Length | 15-5000 mm |
| Center Thickness | 0.12-60 mm |
| Edge Thickness | 0.12-60 mm |
| Design Wavelength | Custom |
| Radius of Curvature | Custom |
| Surface Quality | 40-20 |
| Diameter Tolerance | +0.0/-0.1 |
| Thk Tolerance | ±0.1 mm |
| Substrate Material | K9 |
| PV [@632.8nm] | λ/4 |
| Centering | <3′ |
| Clear Aperture | >90% |
| Coating | Uncoated |
| REACH | Compliant |
| ROHS | Compliant |
| Transmission Range [Substrate Material：K9] | 0.35-2μm |
| Refractive Index [Substrate Material：K9；@587.5618nm] | 1.5168@587.5618nm |
| Refractive Index [Substrate Material：K9；@10.6μm] | 3×10⁻²@10.6μm |
| Reflection loss [Substrate Material：K9；@587.5618nm(both sides)] | 8.1%@587.5618nm(both sides) |
| Density [Substrate Material：K9] | 2.51 g/cm³ |
| Melting Point [Substrate Material：K9] | 559 ℃ |
| Thermal Conductivity [Substrate Material：K9] | 1.114 W/(m•deg C) |
| Thermal Expansion [Substrate Material：K9；-30/+70 degC] | 7.1*10⁻⁶ |
| Specific Heat Capacity [Substrate Material：K9] | 0.858*10³ |
| Young's Modulus(E) [Substrate Material：K9] | 82 GPa |
| Bulk Modulus(K) [Substrate Material：K9] | 34 GPa |
| Poisson Coefficient [Substrate Material：K9] | 0.206 |
| Solubility [Substrate Material：K9] | None |
Applications
Datasheet
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Supplier Information
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