FAQs

What is the standard Angle of Incidence (AOI) f...

For optical filters from Syronoptics.com, the standard Angle of Incidence (AOI) for specified transmission data depends on the category of the filter: Bandpass, Shortpass, and Longpass Filters: The standard AOI...

How should discrepancies between calculated Opt...

When analyzing optical data, the relationship between Optical Density (OD, also known as absorbance) and raw transmission (T) is mathematically strict: OD = -log10(T) Where T is the ratio of...

What is the typical physical thickness of the a...

The physical thickness of a dielectric coating depends heavily on its specific optical function, the wavelengths it is designed to manage, and the number of individual layers required in the...

Why does increasing the Angle of Incidence (AOI...

It is incredibly common to assume that tilting an optical filter would cause a red-shift. The intuitive leap makes sense: if you tilt a piece of glass, the light has...

Are custom edge filters available with extremel...

Yes, custom edge filters with extremely steep transitions are available from Syron Optics. Syron Optics manufactures edge filters—which they categorize specifically as Longpass (Cut-On) and Shortpass (Cut-Off) filters—using advanced thin-film...

Can optical filters be cleaned using standard l...

Whether you can clean optical filters from SyronOptics with standard laboratory solvents depends entirely on the type of coating applied to the specific filter. Their inventory includes both hard and...