68-433 75 x 75 mm 80:20 (R:T) N-BK7 Plate Beamsplitter; t=3mm VIS 400-700nm

The 68-433 is a high-quality beam splitter from Edmund Optics, designed for use in the visible light spectrum, specifically between 400 and 700nm. This beam splitter is rectangular in shape, with dimensions of 75 x 75 mm, and has a thickness of 3mm, making it a robust and stable option for various optical applications.

The beam splitter is made from N-BK7 glass, a popular material in the optical industry due to its excellent optical properties and high damage threshold. The N-BK7 Schott material ensures high transmission and low absorption across the visible spectrum, making it an ideal choice for applications that require precise and reliable light manipulation.

The 68-433 features a 80:20 beam splitting ratio, with 80% of the incident light being reflected and 20% being transmitted. This ratio is consistent across the visible spectrum, providing a reliable and predictable performance. The front surface of the beam splitter is coated with EDM 68-417, a coating that enhances its performance and durability.

This beam splitter is designed as a thin lens, which means it has a flat front and back surface. This design minimizes optical aberrations and ensures that the beam splitter can be easily integrated into various optical systems. The thin lens design also reduces the weight of the beam splitter, making it more portable and easier to handle.