LC1715 N-BK7 Plano-Concave Lens; Dia:1 in; f=-50.0 mm Uncoated

The LC1715 N-BK7 Plano-Concave Lens is a high-quality optical component sourced from Thorlabs, a leading vendor in the field of optical equipment. This lens, with a diameter of 1 inch, is designed to bend light rays to a specific focal point, making it ideal for a wide range of optical applications.

The lens is made of N-BK7, a type of borosilicate glass known for its excellent optical properties. This material is often used in high-precision optical systems due to its low coefficient of thermal expansion and high homogeneity. The N-BK7 Schott designation indicates that the glass meets the stringent quality standards set by Schott, a renowned glass manufacturer.

The LC1715 lens features a plano-concave geometry, meaning one side is flat (plano), while the other side is curved inward (concave). The curvature of the concave side is defined by a radius of 25.7 millimeters, and the lens has a back focal length of -52.3 millimeters. The effective focal length (EFL) of this lens is -50 millimeters, which is the distance from the lens to the point where light rays converge or diverge.

The lens has a central thickness of 3.5 millimeters and an edge thickness of 6.9 millimeters. This robust construction ensures the lens can withstand typical handling and usage in optical systems. However, it's important to note that the lens is uncoated, meaning it doesn't have any additional layers to enhance its optical properties or protect it from environmental factors.

This lens is designed to work with light of a specific wavelength, 587.6 nanometers, which falls within the visible light spectrum. It's shaped spherically, meaning its curved surfaces are parts of spheres. This shape is common in optical lenses due to its simplicity and ease of manufacturing.