Zinc Selenide Biconvex Lens PZE05-
zinc selenide double-convex lenses have the characteristics of low absorption and thermal shock resistance, and are used for imaging relay systems and objects at finite conjugate distances. The focal length is positive, that is, the light will be focused to a point after passing through the convex lens. UM OPTICS can provide 2-300mm diameter, 0.12-60mm thickness (accuracy up to 20-10, 1/10L@633nm) zinc selenide lenticular lens, with rubber plate polishing, high-speed polishing, ring polishing and CNC polishing four major processes, with ZYGO, AFM, reflection and transmission bias, 15 seconds goniometer, UV gluing and centring system, non-contact laser thickness gauge, 2D imager and ball diameter meter, can be plated 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 | 60-40 |
| Diameter Tolerance | +0.0/-0.1 |
| Thk Tolerance | ±0.1 mm |
| Substrate Material | Zinc Selenide（ZnSe） |
| PV [@632.8nm] | λ/4 |
| Centering | <3′ |
| Clear Aperture | >90% |
| Coating | Uncoated |
| REACH | Compliant |
| ROHS | Compliant |
| Crystal Structure [Substrate Material：Zinc Selenide（ZnSe）] | Cubic |
| Density [Substrate Material：Zinc Selenide（ZnSe）] | 5.27 g/cm³ |
| Resistivity [Substrate Material：Zinc Selenide（ZnSe）] | ～10¹² |
| Melting Point [Substrate Material：Zinc Selenide（ZnSe）] | 1525 ℃ |
| Chemical Purity [Substrate Material：Zinc Selenide（ZnSe）] | 99.9996 % |
| Thermal Expansion [Substrate Material：Zinc Selenide（ZnSe）；@273k] | 7.1*10⁻⁶@273k |
| Thermal Expansion [Substrate Material：Zinc Selenide（ZnSe）；@373k] | 7.8*10⁻⁶@373k |
| Thermal Expansion [Substrate Material：Zinc Selenide（ZnSe）；@473k] | 8.3*10⁻⁸@473k |
| Thermal Conductivity [Substrate Material：Zinc Selenide（ZnSe）；@298k] | 18.0@298k |
| Specific Heat Capacity [Substrate Material：Zinc Selenide（ZnSe）；@298k] | 0.339@298k |
| Knoop Hardness [Substrate Material：Zinc Selenide（ZnSe）] | 110 kg/mm² |
| Bending Strength [Substrate Material：Zinc Selenide（ZnSe）] | 55 Mpa |
| Young's Modulus [Substrate Material：Zinc Selenide（ZnSe）] | 67.2 GPa |
| Poisson's Coefficient [Substrate Material：Zinc Selenide（ZnSe）] | 0.28 |
| Transmission Range [Substrate Material：Zinc Selenide（ZnSe）] | 0.5-22μm |
| Refractive index inhomogeneity △n/n [Substrate Material：Zinc Selenide（ZnSe）；@632.8μm] | <3*10⁻⁶@632.8μm |
| Absorption Coefficient [Substrate Material：Zinc Selenide（ZnSe）；@1300nm] | 5.0*10⁻³@1300nm |
| Absorption Coefficient [Substrate Material：Zinc Selenide（ZnSe）；@2700nm] | 7.0*10⁻⁴@2700nm |
| Absorption Coefficient [Substrate Material：Zinc Selenide（ZnSe）；@3800nm] | 4.0*10⁻⁴@3800nm |
| Absorption Coefficient [Substrate Material：Zinc Selenide（ZnSe）；@5250nm] | 4.0*10⁻⁴@5250nm |
| Absorption Coefficient [Substrate Material：Zinc Selenide（ZnSe）；@10600nm] | 5.0*10⁻⁴@10600nm |
| Thermal light coefficient [Substrate Material：Zinc Selenide（ZnSe）；298-358k；@632.80nm] | 1.07*10⁻⁴@632.80nm |
| Thermal light coefficient [Substrate Material：Zinc Selenide（ZnSe）；298-358k；@1150nm] | 7.0*10⁻⁵@1150nm |
| Thermal light coefficient [Substrate Material：Zinc Selenide（ZnSe）；298-358k；@3390nm] | 6.2*10⁻⁵@3390nm |
| Thermal light coefficient [Substrate Material：Zinc Selenide（ZnSe）；298-358k；@10600μm] | 6.1*10⁻⁵@10600μm |
| Refractive Index [Substrate Material：Zinc Selenide（ZnSe）；@620nm] | 2.5994 |
| Refractive Index [Substrate Material：Zinc Selenide（ZnSe）；@10600nm] | 2.4028 |
| Refractive Index [Substrate Material：Zinc Selenide（ZnSe）；@1000nm] | 2.4892 |
| Refractive Index [Substrate Material：Zinc Selenide（ZnSe）；@13000nm] | 2.385 |
| Refractive Index [Substrate Material：Zinc Selenide（ZnSe）；@3800nm] | 2.4339 |
| Refractive Index [Substrate Material：Zinc Selenide（ZnSe）；@14600nm] | 2.3705 |
| Refractive Index [Substrate Material：Zinc Selenide（ZnSe）；@5000nm] | 2.4295 |
| Refractive Index [Substrate Material：Zinc Selenide（ZnSe）；@16600nm] | 2.3487 |
| Refractive Index [Substrate Material：Zinc Selenide（ZnSe）；@7000nm] | 2.4218 |
| Refractive Index [Substrate Material：Zinc Selenide（ZnSe）；@17800nm] | 2.3333 |
| Refractive Index [Substrate Material：Zinc Selenide（ZnSe）；@9000nm] | 2.4122 |
| Refractive Index [Substrate Material：Zinc Selenide（ZnSe）；@18200nm] | 2.3278 |
| Damage Threshold [Substrate Material：Zinc Selenide（ZnSe）；Incidence Mode：Normal Incidence] | >20 J/cm² |
| Damage Threshold [Substrate Material：Zinc Selenide（ZnSe）；Incidence Mode：Brewster's Corner] | >15 J/cm² |
Applications
Datasheet
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