The KPC031AR.33 is a Plano-Concave Lens, a type of spherical lens, sourced from MKS/Newport. This lens has a diameter of 25.4 mm and a thickness of 3.35 mm at the edge, tapering to 2.5 mm at the center. The effective focal length (EFL) of this lens is -150 mm, making it suitable for use in various optical systems.
The lens is made from n-BK7 Schott, a popular optical glass due to its excellent optical properties and relatively low cost. The lens's front and back surfaces are coated with the New AR-33 coating, designed to reduce reflection and increase transmission at a wavelength of 1064 nm.
This lens is currently in stock and available for immediate purchase. For more detailed information, please refer to the vendor's website at https://www.newport.com/f/ar33-n-bk7-plano-concave-lenses.