LB1904 N-BK7 Bi-Convex Lens; Dia:1 in; f=125.0 mm Uncoated

The LB1904 N-BK7 Bi-Convex Lens is a high-quality optical component sourced from Thorlabs. This lens, with a diameter of 1 inch and a focal length of 125.0 mm, is designed for use in a wide range of optical systems.

The lens is made from N-BK7, a popular glass type known for its excellent optical properties. The N-BK7 Schott material ensures high transmission and low dispersion, making it suitable for various applications, including laser systems and imaging applications.

The lens geometry is bi-convex, meaning it has two spherical surfaces that are both convex. This shape is often used to collimate or focus light, making it a versatile choice for many optical setups. The lens has an effective focal length (EFL) of 125.0 mm, which is the distance from the lens to the point at which it focuses or collimates light.

The lens has a center thickness of 3.3 mm and an edge thickness of 2 mm. This robust construction ensures durability and resistance to optical damage. The lens is uncoated, which means it does not have any additional layers to enhance its optical properties. However, uncoated lenses can still provide excellent performance in many applications.

According to the vendor's website, this lens is in stock, indicating its availability for immediate purchase and use. The website also provides further technical details and specifications for those who wish to explore the lens's properties in more depth.