Optical Specifications	Value
Transmission Band 1	Tavg > 93% 502.5 – 537.5 nm
Blocking Band 1	ODavg > 4 200 – 400 nm
Blocking Band 2	ODavg > 4 400 – 457.5 nm
Blocking Band 3	ODavg > 10 457.5 – 487.5 nm (Design specification - measurements are noise-floor limited).
Blocking Band 4	OD > 3.5 495 nm
Blocking Band 5	ODavg > 5 553 – 700 nm
Blocking Band 6	ODavg > 5 700 – 925 nm
Center Wavelength 1	520 nm
Guaranteed Minimum Bandwidth 1	35 nm
FWHM Bandwidth 1 (nominal)	40.7 nm
General Filter Specifications	Value
Angle of Incidence	0 ± 5 degrees
Cone Half-angle	7 degrees
Optical Damage Rating	Testing has proven to show no signs of degradation when exposed to at least 6.0 W of power from an unfiltered xenon arc lamp over a 25 mm diameter (corresponding to 1.2 W/cm2) for over 500 hours.
Physical Filter Specifications	Value
Transverse Dimensions (diameter)	25 mm
Transverse Tolerance	+ 0.0 / – 0.1 mm
Filter Thickness (mounted)	3.5 mm
Filter Thickness Tolerance (mounted)	± 0.1 mm
Clear Aperture	≥ 22 mm
Scratch-Dig	60-40
Filter Thickness (unmounted)	2.0 mm
Filter Thickness Tolerance (unmounted)	± 0.1 mm
Orientation	Arrow on ring indicates preferred direction of propagation of light

520/35 nm BrightLine® single-band bandpass filter

Specifications