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Colour Glass Filters are polished sheets of special glass that have been cast with a dye. Colour Glass Filters generally are relatively cheap and very stable. The disadvantage with them is that they are only available in a relatively small number of colour variants.

Colour Glass filters are useful for selective wavelength absorption and therefor achieve high out of band blocking.  Colour glass type Shortpass filters have very low transmission in long wavelengths and high transmission in the short wavelengths.

The Short-pass range of color glass filters listed here has uniform spectral transmission properties over their entire aperture. We also supply customer colour glass filters in shapes and sizes to fit individual customer's requirements. For more information about our customer filters please contact our technical sales team.

Material:
Diameter:
Length/Width:
Thickness:
Surface Quality:
Parallelism:
Colour glass
+0/-0.20 mm
± 0.20 mm
± 0.20 mm
<60-40 scratch/dig
<3 arcmin

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)



Mounting of diameters and squares.
Antireflective coatings can be applied to one or both faces for improved transmission.
Cutting down or edged to special shapes and sizes at short notice.
Available in sets, supplied in a wooden storage box for research and laboratory use.

13 Items

Name Wavelength cut-on (nm) Wavelength cut-off (nm) Equivalent material Colour Diameter (mm) Length (mm) Width (mm) Thickness (mm) Mounted/Unmounted Type Price Buy
464FCS2500

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720 465 BG3 Deep blue- UV transmitting 25 1 Unmounted Shortpass
$22.94
465FCS5050

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720 465 BG3 Deep blue- UV transmitting 50 50 1 Unmounted Shortpass
$45.73
538FCS2500

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735 538 Hoya B-410 Bright blue- UV transmitting 25 3 Unmounted Shortpass
$32.67
538FCS5050

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735 538 Hoya B-410 Bright blue- UV transmitting 50 50 3 Unmounted Shortpass
$72.98
575FCS2500

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1880 575 BG39 Bright blue- strongly absorbs red/NIR 25 3 Unmounted Shortpass
$22.94
575FCS5050

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1880 575 BG39 Bright blue- strongly absorbs red/NIR 50 50 3 Unmounted Shortpass
$45.73
611FCS2500

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1770 610 BG38 Pale blue- absorbs red/NIR 25 3 Unmounted Shortpass
$22.94
611FCS5050

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1770 610 BG38 Pale blue- absorbs red/NIR 50 50 3 Unmounted Shortpass
$45.73
662FCS2500

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3200 662 KG3 IR absorbing-un-toughened 25 3 Unmounted Shortpass
$22.94
668FCS2500

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3200 668 KG5 IR absorbing-un-toughened 25 3 Unmounted Shortpass
$22.94
668FCS5050

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3200 668 KG5 IR absorbing-un-toughened 50 50 3 Unmounted Shortpass
$45.73
716FCS2500

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3200 716 KG1 IR absorbing- toughened 25 3 Unmounted Shortpass
$22.94
716FCS5050

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3200 716 KG1 IR absorbing- toughened 50 50 3 Unmounted Shortpass
$45.73

13 Items

1

Shortpass Colour Glass Filters

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