This is a Plano-Convex Lens, a type of spherical lens, sourced from Standa, a reputable vendor in the optical industry. The lens is designed with a circular base shape and features a diameter of 12.7 mm and a thickness of 2.9 mm at the edge, transitioning to a center thickness of 3 mm. The effective focal length (EFL) of this lens is 400 mm, making it suitable for applications that require long focal lengths.
The lens is made from UVFS Mal-1965, a material specifically designed for use in the ultraviolet region of the spectrum. The wavelength of this lens is 355 nm, further emphasizing its suitability for ultraviolet applications.
Notably, this lens is uncoated, meaning it does not have any additional layers to enhance its optical properties or protect it from environmental factors. This may be a consideration for users who require coatings for specific applications.
For more information about this lens, including its availability and related products, please refer to the provided weblink.