Techspec Fluorescence Bandpass Filter

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Edmund Optics has introduced 18 new Techspec Fluorescence Bandpass Filters in six new wavelengths. These precision filters are perfectly matched to common fluorophores used in fluorescence imaging applications. They are also optimal components in spectroscopy and clinical chemistry applications, as well as in Biomedical instrumentation.                          

The filters provide maximum brightness and brilliant contrast. Available in common wavelengths for popular fluorophores, they feature greater than 93 per cent transmission and greater than OD 6 blocking outside the desired passband, less than 3 per cent from the edge of the bandwidth, to ensure detection of even the weakest signals. Each Techspec Fluorescence Bandpass Filter is manufactured with a hard sputtered coating on a single fused silica substrate for durability and mounted in a black anodized ring for ease of handling.  

Techspec Fluorescence Bandpass Filters are available in 198 different standard specifications. Eighteen new models have been added at center wavelengths (CWL) ranging from 386-648nm, offered with diameters of 12.5mm, 25mm and 50mm. The RoHS compliant bandpass filters are in-stock and available for immediate delivery for fast turnaround and excellent value. 

In January, Edmund Optics released Techspec YAG-BBAR Coated Achromatic Lenses, consisting of two optical components cemented together to form a doublet and provide a low-cost alternative to air-spaced focusing doublets. They are an ideal tool to correct on-axis spherical and chromatic aberrations.

The YAG-BBAR Coated Achromatic Lenses feature  broadband anti-reflective (BBAR) coating with maximum transmission from 500-1,100 mm. With a surface quality of 40-20, the lenses are optimised for less than 0.25 per cent absolute reflectivity at 532nm and 1,064nm.