This is a 35-724 2.5mm Dia. x 4.0mm FL Plano-Convex Lens, featuring a YAG-BBAR coating suitable for wavelengths between 500 and 1100nm. The lens is sourced from the reputable vendor, Edmund Optics.
The lens is a Spherical Lens of the Sub Type Plano-Convex, with a base shape of Circular. It has a diameter of 2.5mm and a thickness edge of 0.56mm, while the thickness center measures 0.8mm. The effective focal length (EFL) is 4mm, and the radius of curvature (R1) is 3.4mm. The back focal length (BFL) is 3.57mm, and both the inner and outer radii are 0mm.
The lens is made of n-lasf9 schott, a material known for its optical properties. The YAG-BBAR coating on both the front and back of the lens enhances its performance within the specified wavelength range.
Please note that the information provided is based on the data supplied and does not include any additional assumptions or details. For more information, including current stock status and purchasing options, please refer to the vendor's website at https://www.edmundoptics.com/p/25mm-dia-x-40mm-fl-yag-bbar-coated-plano-convex-lens/36072/.