This is a Germanium Plano-Convex lens, sourced from Alkor Technologies, with a diameter of 25.4 mm and a focal length of 127 mm. The lens is uncoated, which means it does not have any additional layers to protect or enhance its optical properties.
The lens's geometry is characterized by its diameter, thickness edge, and thickness center. The diameter is 25.4 mm, the thickness at the edge is 2 mm, and the thickness at the center is 2.2 mm. The lens's inner and outer radii are both 0, indicating a plano-convex shape.
The lens is made of Germanium burnett, a material known for its high refractive index and transparency in the infrared region, specifically at a wavelength of 10600 nm. This makes it suitable for applications that require the transmission of infrared light, such as thermal imaging and night vision systems.
The lens's shape is spherical, which means it has the same curvature throughout its surface. This shape is common in optical systems because it provides a wide field of view and minimal distortion.
Please note that the lens is uncoated, which means it may be more susceptible to environmental factors such as dust, moisture, and scratches. It is recommended to handle the lens with care and consider adding a protective coating for long-term use.
For more information and to check the availability of this product, please visit the vendor's website at http://www.alkor.net/germanium_lenses.html.