L-BCC064 25.4 mm Dia. Double-Concave Lens; EFL=-50mm Uncoated

The L-BCC064 is a 25.4 mm diameter Double-Concave Spherical Lens, sourced from the renowned optical vendor, Ross Optical. This lens is designed with a base shape of Circular geometry, making it suitable for a wide range of optical applications.

The lens features an effective focal length (EFL) of -50mm, indicating its concave-concave nature. The EFL is a critical parameter in lens selection, as it significantly influences the overall optical system's performance. A negative EFL, as in this case, implies that the lens will diverge light, making it ideal for use in applications such as beam expanders or diverging lenses.

The geometry of the lens includes a thickness edge of 5.03mm and a thickness center of 2.5mm. These dimensions are crucial in determining the lens's overall optical path and its interaction with other components in the system.

The lens is made from N-BK7 Schott, a popular optical material known for its excellent optical properties and versatility. This material is particularly suitable for applications in the visible spectrum, as indicated by the wavelength of 587.6nm.

Notably, the lens is uncoated. Coatings are often applied to lenses to enhance their performance by reducing surface reflections, increasing transmission, or providing protection against environmental factors. However, an uncoated lens can be advantageous in certain applications where specific coating properties are not required.

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