FS-px-38.1-304 38.1 mm Dia. UVFS Plano-Convex Lens; EFL=304.8mm Uncoated

The FS-px-38.1-304 is a Plano-Convex Spherical Lens with a diameter of 38.1 mm, making it suitable for a wide range of optical applications. This lens is sourced from Alkor Technologies, a reputable vendor known for their high-quality optical components. The lens is uncoated, which means it does not have any additional layers to enhance or alter its optical properties.

The lens has an effective focal length (EFL) of 304.8 mm, which is the distance from the lens's center to the focal point when the lens is used in air. This EFL makes the lens suitable for applications that require a long focal length. The lens's geometry includes a thickness of 1.5 mm at the edge and 2.8 mm at the center, providing a good balance between optical performance and structural integrity.

The lens is made from UVFS material, which is a type of fused silica. This material is known for its excellent optical properties, including high transparency across a wide range of wavelengths, low autofluorescence, and high resistance to thermal shock and chemical etching. The UVFS material has a refractive index of approximately 1.46 at a wavelength of 587.6 nm, which is the wavelength specified in the item data.