Knight Optical’s complete range of cost effective shortpass dichroic filters offer superior transmission, reflection and absorption characteristics
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical's Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of filter is ideal for high powers and lacks the strong fluorescence of certain glass filters.
Our dichroic shortpass filters are available in a range of wavelengths and are supplied in standard 12.5mm and 25mm diameter or 50mm square types. We are happy to cut and edge filters for non standard sizes to suit your application.
Note:
Wavelength cut-on listed in table is transition cut-on wavelength (T=Tmax/2)
Wavelength cut-off listed in table is transition cut-off wavelength (T=Tmax/2)
Available size: Square 7mm-300mm, Diameter 10mm-400mm
Cutting down or edged to special shapes and sizes at short notice
Mounting of diameters and squares
Available in sets, supplied in a wooden storage box for research and laboratory use
| Name | Type | Wavelength cut-on (nm) 0 degree AOI | Wavelength cut-off (nm) 0 degree AOI | Diameter (mm) | Length (mm) | Width (mm) | Thickness (mm) | Material | Price | Buy |
| 414FDS12 pdf | Shortpass Dichroic Filter | 745 | 414 | 12.5 | 1.1 | Borosilicate |
£20.30
|
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| 414FDS25 pdf | Shortpass Dichroic Filter | 745 | 414 | 25.0 | 1.1 | Borosilicate |
£21.95
|
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| 414FDS50 pdf | Shortpass Dichroic Filter | 745 | 414 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
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| 450FDS12 pdf | Shortpass Dichroic Filter | 846 | 450 | 12.5 | 1.1 | Borosilicate |
£20.30
|
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| 450FDS25 pdf | Shortpass Dichroic Filter | 846 | 450 | 25.0 | 1.1 | Borosilicate |
£21.95
|
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| 450FDS50 pdf | Shortpass Dichroic Filter | 846 | 450 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
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| 460FDS12 pdf | Shortpass Dichroic Filter | 862 | 460 | 12.5 | 1.1 | Borosilicate |
£20.30
|
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| 460FDS25 pdf | Shortpass Dichroic Filter | 862 | 460 | 25.0 | 1.1 | Borosilicate |
£21.95
|
|||
| 460FDS50 pdf | Shortpass Dichroic Filter | 862 | 460 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
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| 470FDS12 pdf | Shortpass Dichroic Filter | 826 | 470 | 12.5 | 1.1 | Borosilicate |
£20.30
|
|||
| 470FDS25 pdf | Shortpass Dichroic Filter | 826 | 470 | 25.0 | 1.1 | Borosilicate |
£21.95
|
|||
| 470FDS50 pdf | Shortpass Dichroic Filter | 826 | 470 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
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| 480FDS12 pdf | Shortpass Dichroic Filter | 866 | 480 | 12.5 | 1.1 | Borosilicate |
£20.30
|
|||
| 480FDS25 pdf | Shortpass Dichroic Filter | 866 | 480 | 25.0 | 1.1 | Borosilicate |
£21.95
|
|||
| 480FDS50 pdf | Shortpass Dichroic Filter | 866 | 480 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
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| 490FDS12 pdf | Shortpass Dichroic Filter | 932 | 490 | 12.5 | 1.1 | Borosilicate |
£20.30
|
|||
| 490FDS25 pdf | Shortpass Dichroic Filter | 932 | 490 | 25.0 | 1.1 | Borosilicate |
£21.95
|
|||
| 490FDS50 pdf | Shortpass Dichroic Filter | 932 | 490 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
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| 500FDS12 pdf | Shortpass Dichroic Filter | 710 | 500 | 12.5 | 1.1 | Borosilicate |
£20.30
|
|||
| 500FDS25 pdf | Shortpass Dichroic Filter | 710 | 500 | 25.0 | 1.1 | Borosilicate |
£21.95
|
|||
| 500FDS50 pdf | Shortpass Dichroic Filter | 710 | 500 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
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| 510FDS12 pdf | Shortpass Dichroic Filter | 737 | 510 | 12.5 | 1.1 | Borosilicate |
£20.30
|
|||
| 510FDS25 pdf | Shortpass Dichroic Filter | 737 | 510 | 25.0 | 1.1 | Borosilicate |
£21.95
|
|||
| 510FDS50 pdf | Shortpass Dichroic Filter | 737 | 510 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
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| 520FDS12 pdf | Shortpass Dichroic Filter | 746 | 520 | 12.5 | 1.1 | Borosilicate |
£20.30
|
|||
| 520FDS25 pdf | Shortpass Dichroic Filter | 746 | 520 | 25.0 | 1.1 | Borosilicate |
£21.95
|
|||
| 520FDS50 pdf | Shortpass Dichroic Filter | 746 | 520 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
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| 530FDS12 pdf | Shortpass Dichroic Filter | 750 | 530 | 12.5 | 1.1 | Borosilicate |
£20.30
|
|||
| 530FDS25 pdf | Shortpass Dichroic Filter | 750 | 530 | 25.0 | 1.1 | Borosilicate |
£21.95
|
|||
| 530FDS50 pdf | Shortpass Dichroic Filter | 750 | 530 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
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| 541FDS12 pdf | Shortpass Dichroic Filter | 774 | 541 | 12.5 | 1.1 | Borosilicate |
£20.30
|
|||
| 541FDS25 pdf | Shortpass Dichroic Filter | 774 | 541 | 25.0 | 1.1 | Borosilicate |
£21.95
|
|||
| 541FDS50 pdf | Shortpass Dichroic Filter | 774 | 541 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
||
| 550FDS12 pdf | Shortpass Dichroic Filter | 788 | 550 | 12.5 | 1.1 | Borosilicate |
£20.30
|
|||
| 550FDS25 pdf | Shortpass Dichroic Filter | 788 | 550 | 25.0 | 1.1 | Borosilicate |
£21.95
|
|||
| 550FDS50 pdf | Shortpass Dichroic Filter | 788 | 550 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
||
| 560FDS12 pdf | Shortpass Dichroic Filter | 796 | 560 | 12.5 | 1.1 | Borosilicate |
£20.30
|
|||
| 560FDS25 pdf | Shortpass Dichroic Filter | 796 | 560 | 25.0 | 1.1 | Borosilicate |
£21.95
|
|||
| 560FDS50 pdf | Shortpass Dichroic Filter | 796 | 560 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
||
| 570FDS12 pdf | Shortpass Dichroic Filter | 822 | 570 | 12.5 | 1.1 | Borosilicate |
£20.30
|
|||
| 570FDS25 pdf | Shortpass Dichroic Filter | 822 | 570 | 25.0 | 1.1 | Borosilicate |
£21.95
|
|||
| 570FDS50 pdf | Shortpass Dichroic Filter | 822 | 570 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
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| 581FDS12 pdf | Shortpass Dichroic Filter | 837 | 581 | 12.5 | 1.1 | Borosilicate |
£20.30
|
|||
| 581FDS25 pdf | Shortpass Dichroic Filter | 837 | 581 | 25.0 | 1.1 | Borosilicate |
£21.95
|
|||
| 581FDS50 pdf | Shortpass Dichroic Filter | 837 | 581 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
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| 590FDS12 pdf | Shortpass Dichroic Filter | 845 | 590 | 12.5 | 1.1 | Borosilicate |
£20.30
|
|||
| 590FDS25 pdf | Shortpass Dichroic Filter | 845 | 590 | 25.0 | 1.1 | Borosilicate |
£21.95
|
|||
| 590FDS50 pdf | Shortpass Dichroic Filter | 845 | 590 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
|
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| 730FDS12 pdf | Shortpass Dichroic Filter | 730 | 12.5 | 1.1 | Borosilicate |
£20.63
|
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| 730FDS25 pdf | Shortpass Dichroic Filter | 730 | 25.0 | 1.1 | Borosilicate |
£22.50
|
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| 730FDS50 pdf | Shortpass Dichroic Filter | 730 | 50.0 | 50.0 | 1.1 | Borosilicate |
£38.50
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