68-371 25 x 38 mm 20:80 (R:T) N-BK7 Plate Beamsplitter; t=3mm VIS 400-700nm

The 68-371 Beam Splitter is a high-quality optical component manufactured by Edmund Optics, a leading global provider of optical components. This specific beamsplitter is designed with a rectangular base shape, measuring 25 x 38 mm, and has a thickness of 3mm, making it suitable for a wide range of optical applications.

The beamsplitter is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and high homogeneity. It is designed to operate within the visible light spectrum, specifically between 400 and 700nm. The beamsplitter's coating, edm 68-363, is applied to the front surface and is responsible for the beamsplitter's specified 20:80 (R:T) reflectance to transmission ratio. This means that approximately 20% of the incident light is reflected, while 80% is transmitted through the beamsplitter.

The physical data provided indicates that the beamsplitter has a reflection of 0.2 and a transmission of 0.8, which aligns with the specified 20:80 (R:T) ratio. This beamsplitter is a thin lens, which can be beneficial in certain optical systems due to its reduced thickness and weight.

For more information, including pricing and availability, please refer to the provided weblink, which has been verified to be valid and in stock at the time of writing.