This is the HO-PVL25-08 25mm Dia. N-BK7 Plano-Concave Lens, a high-quality optical component sourced from Holmarc Opto-Mechatronics. The lens is designed with a spherical geometry, featuring a base shape of a circle and a diameter of 25mm. The lens's thickness at the center is 2.5mm, and it has an effective focal length (EFL) of -200mm, making it a plano-concave lens.
The lens is made of N-BK7 Schott, a popular optical glass due to its excellent optical properties and wide transparency range. The lens is uncoated, which means it does not have any additional layers to enhance its optical performance. However, uncoated lenses can still provide good image quality, especially in applications where high light transmission is not critical.
This lens is suitable for use in various optical systems, including beam expanders, collimators, and other systems that require negative lenses. It is in stock and ready for immediate use. For more information about this lens and similar products, please visit the Holmarc Opto-Mechatronics website.