87-740 12.5 mm Dia. Hard Coated Fluorescence Bandpass Filter; t=2 mm 623nm

The 87-740 is a Bandpass Filter, specifically designed for Fluorescence applications, available from Edmund Optics. This filter boasts a 12.5 mm diameter and a thickness of 2 mm, making it a robust and compact option for various optical setups.

The filter is designed to transmit light within a specific wavelength range, centered at 623nm, while blocking unwanted wavelengths. The cut-on wavelength is 611nm, and the cut-off wavelength is 635nm, providing a 24nm bandwidth. This precise wavelength selection is crucial in fluorescence applications, where specific light frequencies need to be isolated or emphasized.

The 87-740 filter features hard coating on both the front and back surfaces. This coating enhances the filter's durability and resistance to wear and tear, ensuring long-lasting performance. The coating also reduces surface reflections, improving the overall transmission efficiency of the filter.

The filter's geometry is shaped as a Thin Lens, which can be beneficial in certain optical configurations, providing improved light focusing or collection. The catalog number for this item is 87-740, and it is currently in stock, according to the vendor's website.