33-910 25 mm Dia. Hard Coated Fluorescence Bandpass Filter; t=2 mm 620nm

The 33-910 is a 25 mm diameter Bandpass Filter, specifically designed for fluorescence applications, and sourced from the renowned optical vendor, Edmund Optics. This filter is characterized by its 620nm central wavelength (CWL), making it ideal for use in systems where this wavelength needs to be isolated or enhanced.

The filter boasts a 56nm bandwidth, ensuring a high level of spectral purity. It is designed with a circular geometry, a common shape in optical systems due to its ease of alignment and integration. The filter's thickness is 2mm, providing sufficient structural rigidity while maintaining minimal optical path length distortion.

The 33-910 filter is cut-on at 592nm and cut-off at 648nm. This means that it begins transmitting at 592nm and stops transmitting at 648nm, effectively passing light in this narrow wavelength range. This characteristic is crucial in applications where stray light or out-of-band radiation can cause unwanted noise or interference.

The filter features a hard coating on both the front and back surfaces, denoted as 'edm 33-909'. This coating enhances the filter's durability and resistance to environmental factors, ensuring long-term performance and reliability. The filter's shape is defined as a Thin Lens, indicating that it has been designed to minimize optical aberrations and distortions.