68-369 25 x 25 mm 20:80 (R:T) N-BK7 Plate Beamsplitter; t=3mm VIS 400-700nm

The 68-369 is a high-quality beam splitter, designed and manufactured by Edmund Optics, a leading global provider of optical components. This specific model boasts a rectangular shape, with dimensions of 25 x 25 mm, and a thickness of 3mm, making it a versatile option for a wide range of optical applications.

The beam splitter is crafted from N-BK7, a popular optical glass due to its excellent optical properties and high damage threshold. This material is identified in the item data as "n-bk7 schott," indicating its Schott glass origin, a trusted name in the optical industry.

The 68-369 features a 20:80 (R:T) beam splitting ratio, meaning that approximately 20% of the incident light is reflected, while 80% is transmitted. This ratio is crucial in determining how the beam splitter will divide incoming light, making it a key consideration when selecting a beam splitter for your specific application.

The beam splitter's coating, specified as "edm 68-363," is applied to the front surface. This coating plays a significant role in the beam splitter's performance, particularly in terms of its reflectance and transmittance characteristics.

The beam splitter is designed for use in the visible spectrum, with a wavelength of 588nm. However, it is suitable for use in a broader range, from 400 to 700nm, making it a versatile choice for many optical systems.