350FDC25 25 mm Dia. Bandpass Dichroic Filter 350nm

The 350FDC25 is a high-quality dichroic filter, sourced from Knight Optical, designed with a circular geometry and a diameter of 25 mm. This filter is specifically engineered for use in optical systems that require precise wavelength selection, with a central wavelength of 350 nm.

The filter is made from N-BK7 Schott, a well-known and widely used optical glass, ensuring excellent optical performance. It boasts a thickness of 1.1 mm, providing sufficient structural integrity while maintaining minimal optical path differences.

The 350FDC25 features a bandpass geometry, with a cut-on wavelength of 305 nm and a cut-off wavelength of 396 nm. This means it allows transmission of light within this specific wavelength range, while blocking light of other wavelengths. This property makes it ideal for applications that require narrowband wavelength selection, such as fluorescence microscopy or laser spectroscopy.

The filter is coated with a proprietary coating, kni 350fdc-0, on both the front and back surfaces. This coating enhances its performance by reducing surface reflections and improving transmission, thereby increasing the overall efficiency of the optical system.