387/480 nm BrightLine® dual-band bandpass filter

Product Code Description Lead Time Price Quantity Buy / Get Quote
FF01-387/480-21.8-D 387/480 nm BrightLine® dual-band bandpass filter 1-2 weeks £450.00
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Angle of Incidence:

0 ± 5 °

Blocking Band:

OD > 3.5 403.5 nm

Blocking Band:

ODavg > 3.5 459 – 502.5 nm

Blocking Band:

ODavg > 4 725 – 850 nm

Blocking Band:

ODavg > 6 300 – 374.4 nm

Blocking Band:

ODavg > 6 410 – 550 nm

Blocking Band:

ODavg > 6 414 – 452 nm

Blocking Band:

ODavg > 6 550 – 725 nm

Clear Aperture:

≥ 21 mm

Cone Half-angle:

Filter Effective Index:

1.91 Understanding 'Effective Index of Refraction' neff

Filter Thickness Tolerance, Mounted:

± 0.1mm

Filter Thickness, Mounted:


Mounted / Unmounted:


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 hrs.


Arrow on ring indicates preferred direction of propagation of light

Product Type:

BrightLine Dual-Band Bandpass Filter

Semrock Filter Family:

BrightLine® Fluorescence Filters




21.8 x 2.0 mm

Substrate Thickness:


Substrate Type:

low-autofluorescence optical quality glass

Surface Quality (Scratch-Dig):


Transverse Tolerance, Mounted:

+ 0.0 / - 0.1 mm

Band 1

FWHM Bandwidth:


Guaranteed Minimum Bandwidth:

11 nm

Transmission Band:

Tavg > 80% 381.5 – 392.5 nm

Transmission Wavelength:


Band 2

FWHM Bandwidth:


Guaranteed Minimum Bandwidth:

29 nm

Transmission Band:

Tavg > 90% 466 – 495 nm

Transmission Wavelength:


Individual multiband fluorescence bandpass filters that utilize Semrock's patented single-substrate construction. These filters have extremely high transmission, steep and well-defined edges, and outstanding blocking between the passbands. All thin-film, hard-coated construction for unsurpassed performance and reliability.


Note on spectral plots:
In the past, each shipment has included a spectral plot for every filter and every lot code in the shipment. In an effort to be more eco-friendly, we will no longer be including these plots with each shipment. If you require spetral plot data, please see here for more information.