64-054 50 mm Dia. N-BK7 Laser Line Window; t=4 mm Laser V-Coat 785nm

The 64-054 is a 50 mm diameter N-BK7 laser line window, featuring a thickness of 4 mm and a laser V-coat optimized for 785nm. This item is sourced from Edmund Optics, a reputable vendor known for their high-quality optical components.

As a window, this component is designed to provide protection for optical systems while minimally affecting the beam path. The 50 mm diameter offers a generous aperture, suitable for a wide range of applications. The 4 mm thickness strikes a balance between durability and compactness, making it a versatile choice for many setups.

The N-BK7 material, also known as BK7, is a popular choice in the optical industry due to its excellent optical properties and chemical resistance. This Schott glass type is renowned for its low dispersion and high transmittance across a broad spectrum, making it ideal for applications involving laser beams.

The laser V-coat, applied to both the front and back surfaces, enhances the window's performance in specific wavelength ranges. This coating is specifically designed for 785nm, ensuring optimal performance in this wavelength. It provides improved damage threshold, reduced reflection, and increased transmission, which are crucial for laser applications.

The item's shape is classified as a thin lens, indicating its potential use in focusing or collimating light beams, although its primary function here is to protect the optical system.