Germanium Plano Convex Lens 25mm Focal Length
SLGE-25-25P
The single crystal of germanium used in semiconductor is less absorption in the infrared wavelength of 2 - 20μm and it can be used as an optical element of the infrared light. It is a single lens which was made with the germanium crystal. It is used as a lens of a camera to observe the infrared, such as thermography.
◦Even though it looks like the light does not transmit because of its metallic luster, it is transmitting through a wide infrared range of 2 - 20μm.
◦The wavelength of 1.5μm or less does not transmit, so it also provides the effect of an infrared transmission filter.
◦Since the silicon lens has a refractive index of 4 or more, the lens curvature is slower then when made from standard glass.
◦The wavelength of 1.5μm or less does not transmit, so it also provides the effect of an infrared transmission filter.
◦Since the silicon lens has a refractive index of 4 or more, the lens curvature is slower then when made from standard glass.
| Name | Germanium Plano Convex Lens 25mm Focal Length |
|---|---|
| Weight | 0.0050kgs |
| Standard Coatings Available | No |
| Guide |
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| Remark | - |
| Attention |
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| Image Label | Germanium Plano Convex Lens 25mm Focal Length |
| Focal length | 25mm |
| Material | Germanium (Ge) |
| Design Wavelength | 10.6μm |
| Coating | Uncoated |
| Surface reflectance | 36% at 5μm |
| Shape Type | Plano Convex spheric (Polished surface on both sides) |
| Eccentricity | ＜3′ |
| Clear aperture | 90% of the diameter |
| Surface Quality (Scratch-Dig) | 60-40 |
| Diameter | φ25mm |
| Focal length f | 25mm |
| Back focal length fb | 24.25mm |
| Edge thickness te | 1.95mm |
In stock
SKU
SLGE-25-25P
£234.94
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The single crystal of germanium used in semiconductor is less absorption in the infrared wavelength of 2 - 20μm and it can be used as an optical element of the infrared light. It is a single lens which was made with the germanium crystal. It is used as a lens of a camera to observe the infrared, such as thermography.
