45-376 3.0mm Dia. x -9 FL; Uncoated; Plano-Concave Lens

The 45-376 is a 3.0mm diameter Plano-Concave lens with a -9 FL (focal length) from Edmund Optics. This lens is uncoated, meaning it does not have any additional layers to protect or enhance its optical properties.

The lens's geometry is characterized by a thickness of 1.11mm at the edge and 1mm at the center, with an effective focal length (EFL) of -9. The radius of curvature (R1) is -7.06, and the back focal length (BFL) is -9.56. The lens's inner and outer radii are both 0, indicating a flat surface on both sides.

This lens is made of n-SF11 Schott, a high-index glass with excellent optical properties. It is designed to work with a wavelength of 587.6nm. The lens's shape is spherical, which is a common type of lens used in various optical applications due to its simple design and manufacturing process.

Please note that this lens is uncoated, which means it may be more susceptible to environmental factors such as dust, dirt, and moisture. It is also worth mentioning that the lens's concave shape may cause it to diverge light, making it suitable for certain applications such as beam expanders or diverging lenses.

For more information and to check the current availability, please refer to the vendor's website using the provided weblink.