Filter types from the listed production lines
This guide lists optical filter types from the company's listed production lines, at category level. The lines are narrow band pass interference filters, fluorescence system filters, high reflection filters, beam splitting filters, color splitting filters, IR sensor interference filters, UV mirrors, neutral density filters, and special filters. Each type below links to its own page, where the category is described and an inquiry checklist is given. Only fluorescence filters and neutral density filters carry documented specification evidence, and that evidence sits on their own pages, not here.
The types
Narrow band pass filters allow a specific band of light signals to pass, with a narrow pass band. Fluorescence filters serve biomedical fluorescence detection systems and real-time fluorescence quantitative PCR instruments, with documented coating, excitation and emission examples, blocking, slope, dye and probe names, and sizes. High reflection filters are listed production lines described at category level. Beam splitting filters are semi-transmitting mirrors that combine light of two or more wavelengths into the same optical path. Color splitting filters are listed production lines described at category level. IR sensor interference filters are listed production lines described at category level. UV mirrors are UV reflector lines for industrial optical use. Neutral density filters attenuate light across a documented wavelength range and ND value range. Special filters appears here only as a category name from the listed production lines, without an application description. Two further categories with their own pages are CCD gel imaging filters and IPL beauty machine filters.
How to choose a type
Choose by the optical job first, not by the name. If you need to isolate a narrow band, start with narrow band pass filters. If you need to separate excitation from emission in a fluorescence system, start with fluorescence filters. If you need to reduce light intensity evenly, start with neutral density filters. If you need to combine beams, start with beam splitting filters. If you need to cut off one side of a spectrum, start with short pass filters on the short pass filters page, or compare the two cut-off families in the narrow band pass versus short pass guide. If you are unsure, the interference filter guide explains the concepts, and the interference filters overview maps the whole family.
Inquiry checklist for any type
Please confirm the following items in your inquiry before ordering, whichever type you choose: centre wavelength or wavelength range; bandwidth or pass band behaviour; cut-off depth where it applies; size and shape; substrate material; and the quantity basis and delivery basis for your order.