67-020 12.5 mm Dia. Hard Coated Fluorescence Bandpass Filter; t=2 mm 591.5nm

The 67-020 is a high-quality Bandpass Filter, sourced from the renowned optical vendor, Edmund Optics. This filter is designed with a circular geometry, boasting a 12.5 mm diameter and a thickness of 2 mm, making it a versatile option for various optical applications.

The filter is constructed from UVFS MAL-1965, a material specifically chosen for its optical properties. It is designed to operate at a central wavelength (CWL) of 591.5 nm, with a bandwidth of 43 nm. This precise wavelength control makes it ideal for applications that require narrow-band light transmission.

The 67-020 features hard coatings on both the front and back surfaces, denoted as 'edm 67-020'. These coatings enhance the durability of the filter, providing resistance to scratches and other forms of wear and tear. This ensures the filter maintains its optical performance over time.

The filter's cut-on wavelength is 567 nm, and the cut-off wavelength is 616 nm. This means that it begins to transmit light at 567 nm and stops transmitting at 616 nm, further emphasizing its narrow-band transmission properties.

The filter is shaped as a Thin Lens, which can be beneficial in certain optical configurations. It is currently in stock and available for purchase through the Edmund Optics website, as indicated by its valid weblink status.