Frequently Asked Questions

Knight Optical’s dichroic bandpass filters are available in a range of wavelengths and are supplied in standard 12.5mm and 25mm diameter or 50mm square types. They are also available in sets, supplied in a wooden storage box for research and laboratory use.

The material/specification of the 520FDC dichroic bandpass filter is 504nm cut-on @ 0° AOI, 536nm cut-off @ 0° AOI, 520nm CWL 483nm cut-on @ 45° AOI, 495nm cut-off @ 45° AOI, 489nm CWL.

Dichroic bandpass filters are designed to transmit highly over a specific limited bandwidth while reflecting all other wavelengths.

Dichroic filters are used in several different types of application including entertainment and stage lighting.

Yes, Knight Optical is happy to cut and edge filters for non-standard sizes to suit your application.

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