This is a 31-432 51 x 76 mm 75:25 (R:T) Float Glass Standard Plate Beamsplitter, sourced from the renowned optical components vendor, Edmund Optics. The beamsplitter is designed with a rectangular base shape and a thickness of 3mm, making it suitable for a wide range of optical applications.
The beamsplitter's coating, edm 46-666, is applied to the front surface, contributing to its specific reflectance and transmittance characteristics. The beamsplitter has a reflection rate of 75% and a transmission rate of 25% at a wavelength of 588nm, which falls within the operational wavelength range of 400-700nm.
This beamsplitter is of the Thin BS subtype, which refers to its thin lens shape. The item data indicates that it is in stock, and you can find more information about it, including pricing and availability, on the Edmund Optics website using the provided weblink.