66-253 50 x 50 mm N-BK7 45 deg Reflective Magenta Dichroic Filter; t=4 mm 400-465/635-725nm

This is a 50 x 50 mm N-BK7 45 degree Reflective Magenta Dichroic Filter with a thickness of 4 mm, designed for use in optical systems where specific wavelength selection is required. The filter is sourced from Edmund Optics, a leading vendor in the optical industry, and is available for purchase through their website.

The filter is designed to reflect light in the magenta spectrum, specifically within the wavelength range of 400-465nm and 635-725nm. This is achieved through the use of a specialized coating on both the front and back surfaces, identified as 'edm 66-244'. The coating is applied to a 4 mm thick N-BK7 substrate, a high-quality borosilicate glass known for its excellent optical properties.

The filter's geometry includes a rectangular shape, making it suitable for use in a wide range of optical applications. The cut-on wavelength is 605nm, and the cut-off wavelength is 495nm, providing a sharp transition between the reflected and transmitted wavelengths. This makes the filter ideal for use in applications where precise wavelength selection is critical.

In terms of physical data, the filter is designed to operate at a 45-degree angle of incidence, which is typical for many optical systems. The filter is available in a thin lens shape, which can help minimize optical aberrations and improve the overall performance of the system.