47-266 25 mm Dia. N-BK7 45 deg Reflective Red Dichroic Filter; t=4 mm 400-750nm

The 47-266 is a 25 mm diameter Dichroic Filter with a 45 degree angle of incidence, specifically designed for reflecting red light. Sourced from Edmund Optics, this filter boasts a high-quality N-BK7 substrate from Schott, a renowned optical glass manufacturer. The filter's primary wavelength is 588nm, making it ideal for applications that require precise red light reflection.

The filter's geometry includes a 25mm diameter, providing a generous aperture for a wide range of optical systems. It has a thickness of 4mm, offering robustness and stability. The physical data indicates a cut-on wavelength of 615nm and a cut-off wavelength of 0nm, demonstrating its high selectivity for red light.

The coating on both the front and back surfaces of the filter is EDM 47-263, a proprietary coating from Edmund Optics. This coating enhances the filter's performance, ensuring high reflectivity for red light and low transmission for other wavelengths. The filter's shape is that of a thin lens, making it suitable for use in various optical configurations.

The filter is currently in stock and available for immediate purchase through the Edmund Optics website. Its catalog number is 47-266, and it is listed under the Filters and Dichroic Filters categories.