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Colour Glass filters are useful for selective wavelength absorption and therefore achieve high out of band blocking. Colour glass type Longpass filters have very low transmission in short wavelengths and high transmission in the long wavelengths. These filters are used in range of spectral selection scientific instrument applications.

The long-pass range of color glass filters listed here has uniform spectral transmission properties over their entire aperture. A wide range of Colour Glass Longpass Filters are available as 50x50mm and 25mm diameter filters, stocked in the options below.

Stock colour glass filters are available to purchase directly from this website. To enquire about our customer colour glass capabilities, or to place a custom order, 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.

53 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
280FCS2500

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280 2750 WG280 Colourless filters- transmitting visible and some UV 25 3 Unmounted Longpass
€20.96
280FCS5050

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280 2750 WG280 Colourless filters- transmitting visible and some UV 50 50 3 Unmounted Longpass
€41.78
315FCS2500

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320 2725 WG320 Colourless filters- transmitting visible and some UV 25 3 Unmounted Longpass
€20.96
315FCS5050

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320 2725 WG320 Colourless filters- transmitting visible and some UV 50 50 3 Unmounted Longpass
€41.78
345FCS2500

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340 2746 UV34 (Hoya) Colourless filters- transmitting visible and some UV 25 2.5 Unmounted Longpass
€20.96
345FCS5050

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340 2746 UV34 (Hoya) Colourless filters- transmitting visible and some UV 50 50 2.5 Unmounted Longpass
€41.78
361FCS2500

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360 2755 WG360 Colourless filters- transmitting visible and some UV 25 3 Unmounted Longpass
€20.96
361FCS5050

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360 2755 WG360 Colourless filters- transmitting visible and some UV 50 50 3 Unmounted Longpass
€41.78
375FCS2500

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375 2770 GG375 Colourless- UV-absorbing 25 3 Unmounted Longpass
€20.96
375FCS5050

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375 2770 GG375 Colourless- UV-absorbing 50 50 3 Unmounted Longpass
€41.78
385FCS2500

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385 2735 GG385 Colourless- UV-absorbing 25 3 Unmounted Longpass
€20.96
385FCS5050

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385 2735 GG385 Colourless- UV-absorbing 50 50 3 Unmounted Longpass
€41.78
395FCS2500 pdf 395 2740 GG395 Colourless- UV-absorbing 25 3 Unmounted Longpass
€20.96
395FCS5050 pdf 395 2740 GG395 Colourless- UV-absorbing 50 50 3 Unmounted Longpass
€41.78
420FCS2500

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420 2740 GG420 Very pale yellow- UV-absorbing 25 3 Unmounted Longpass
€20.96
420FCS5050

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420 2740 GG420 Very pale yellow- UV-absorbing 50 50 3 Unmounted Longpass
€41.78
435FCS2500

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435 2727 GG435 Very pale yellow- UV-absorbing 25 3 Unmounted Longpass
€20.96
435FCS5050

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435 2727 GG435 Very pale yellow- UV-absorbing 50 50 3 Unmounted Longpass
€41.78
455FCS2500

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455 2735 GG455 Pale yellow 25 3 Unmounted Longpass
€20.96
455FCS5050

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455 2735 GG455 Pale yellow 50 50 3 Unmounted Longpass
€41.78
475FCS2500

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475 2735 GG475 Yellow 25 3 Unmounted Longpass
€20.96
475FCS5050

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475 2735 GG475 Yellow 50 50 3 Unmounted Longpass
€41.78
495FCS2500

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495 2740 GG495 Yellow 25 3 Unmounted Longpass
€20.96
495FCS5050

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495 2740 GG495 Yellow 50 50 3 Unmounted Longpass
€41.78
515FCS2500

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515 2740 OG515 Deep yellow 25 3 Unmounted Longpass
€20.96
515FCS5050

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515 2740 OG515 Deep yellow 50 50 3 Unmounted Longpass
€41.78
530FCS2500

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530 2745 OG530 Yellow/ orange 25 3 Unmounted Longpass
€20.96
530FCS5050

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530 2745 OG530 Yellow/ orange 50 50 3 Unmounted Longpass
€41.78
550FCS2500

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550 2750 OG550 Orange 25 3 Unmounted Longpass
€20.96
550FCS5050

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550 2750 OG550 Orange 50 50 3 Unmounted Longpass
€41.78
570FCS2500

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570 2740 OG570 Orange/ red 25 3 Unmounted Longpass
€20.96
570FCS5050

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570 2740 OG570 Orange/ red 50 50 3 Unmounted Longpass
€41.78
590FCS2500

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590 2740 OG590 Bright red 25 3 Unmounted Longpass
€20.96
590FCS5050

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590 2740 OG590 Bright red 50 50 3 Unmounted Longpass
€41.78
610FCS2500 pdf 610 2740 RG610 Red 25 3 Unmounted Longpass
€20.96
610FCS5050 pdf 610 2740 RG610 Red 50 50 3 Unmounted Longpass
€41.78
630FCS2500

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630 2740 RG630 Deep red 25 3 Unmounted Longpass
€20.96
630FCS5050

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645 2740 RG630 Deep red 50 50 3 Unmounted Longpass
€41.78
645FCS2500

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645 2740 RG645 Very deep red 25 3 Unmounted Longpass
€20.96
645FCS5050

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645 2740 RG645 Very deep red 50 50 3 Unmounted Longpass
€26.04
665FCS2500

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665 2740 RG665 Extreme red/ IR transmitting 25 3 Unmounted Longpass
€20.96
665FCS5050

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665 2740 RG665 Extreme red/ IR transmitting 50 50 3 Unmounted Longpass
€41.78
695FCS2500

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695 2740 RG695 Extreme red/ IR transmitting 25 3 Unmounted Longpass
€20.96
695FCS5050

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695 2740 RG695 Extreme red/ IR transmitting 50 50 3 Unmounted Longpass
€41.78
715FCS2500

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715 2765 RG715 Black- pass of IR from stated wavelength 25 3 Unmounted Longpass
€24.77
715FCS5050

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715 2765 RG715 Black- pass of IR from stated wavelength 50 50 3 Unmounted Longpass
€46.04
780FCS2500

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780 2780 RG780 Black- pass of IR from stated wavelength 25 3 Unmounted Longpass
€24.77
780FCS3300

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780 2780 RG780 Black- pass of IR from stated wavelength 33 3 Unmounted Longpass
€36.20
780FCS5050

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780 2780 RG780 Black- pass of IR from stated wavelength 50 50 3 Unmounted Longpass
€46.04
850FCS2500

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850 2763 RG850 Black- pass of IR from stated wavelength 25 3 Unmounted Longpass
€24.77
850FCS5050

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850 2763 RG850 Black- pass of IR from stated wavelength 50 50 3 Unmounted Longpass
€46.04
1000FCS2500

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1000 2750 RG1000 Black- pass of IR from stated wavelength 25 3 Unmounted Longpass
€24.77
1000FCS5050

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1000 2750 RG1000 Black- pass of IR from stated wavelength 50 50 3 Unmounted Longpass
€46.04

53 Items

1

Longpass Colour Glass Filters

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