The SLSQ-25.4B-150N is a double-concave lens with a diameter of 25.4 mm and a focal length of -149.7 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made of fused silica, a material known for its excellent optical properties, including high transparency and resistance to thermal shock.
The lens features a base shape of a circle and is designed with a spherical geometry. The center thickness of the lens is 2 mm, while the edge thickness is 3.2 mm. The inner and outer radii are both 0, indicating a symmetrical design. The effective focal length (EFL) of the lens is -149.7 mm, and the back focal length (BFL) is -150.4 mm.
This lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. However, it is still suitable for various applications that require a double-concave lens. The wavelength for this lens is 546.1 nm.
For more information about this lens, including its availability and pricing, please refer to the provided web link: https://www.optosigma.com/us_en/fused-silica-biconcave-lenses-uncoated-SLSQ-B-N.html.