LB1723 N-BK7 Bi-Convex Lens; Dia:2 in; f=60.0 mm Uncoated

The LB1723 N-BK7 Bi-Convex Lens is a high-quality optical component sourced from Thorlabs, a leading vendor in the field of precision photonics. This lens, with a diameter of 2 inches and a focal length of 60.0 mm, is designed for use in a wide range of optical systems, including imaging, beam shaping, and laser applications.

The lens is made from N-BK7, a popular glass type known for its excellent optical properties. This material, also known as BK7, is a crown glass with a low refractive index and low dispersion, making it ideal for applications that require high image quality and color correction. The N-BK7 designation indicates that this particular lens is made from Schott glass, a renowned manufacturer known for its high-quality optical materials.

The lens features a bi-convex geometry, meaning it has two convex surfaces. This shape is often used to collimate or focus light, making it suitable for a variety of applications. The lens has a center thickness of 14.4 mm and an edge thickness of 3 mm, providing rigidity and durability.

The LB1723 lens is uncoated, meaning it does not have any anti-reflective coatings. While this may result in higher reflective losses, it can also make the lens less susceptible to damage from environmental factors. The lens has an effective focal length (EFL) of 60.0 mm and a back focal length (BFL) of 55.0 mm.

According to the vendor's website, this lens is in stock, indicating its availability for immediate purchase and delivery. The website also provides further technical specifications and application notes, which can be valuable resources for those considering this lens for their optical systems.