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Color Glass Filters CMOS sensors

Photonics MarketplaceKnight Optical enhances their range of color glass filters for CMOS sensors which are used within commercial grade digital SLR cameras as a replacement for the more expensive CCD. These CMOS sensors are extremely sensitive to IR light, which can lead to discoloration. IR cut filters are used to block the IR light, meaning that photographs are taken with life-like colors. Color glass filters can be used in variations of bandpass, longpass and shortpass, depending on which wavelengths of light need to be blocked resulting in different key areas being more easily distinguished.

Knight Optical offers colour glass and IR cut filters for such an application, with a wide range of bandwidths and cut on/off wavelengths. As above these are available as bandpass, longpass or shortpass filters and we can also offer customized filters with coatings specific to the wavelength of your choice. We hold a massive inventory of IR cut, bandpass, longpass and shortpass filters: Stock sizes of 5-50mm diameter or 5-50mm length/width and 1mm thick - Custom shapes and sizes available - Alternative thickness substrates available.

Typical specs:

   •   Material: Colour Glass and Borosilicate/D263T or equivalent
   •   Diameter: +0.0 / -0.20 mm Length/width: ± 0.20 mm
   •   Thickness: ± 0.20 mm
   •   Surface quality: <60-40 scratch/dig or <20:10 for HD cameras
   •   Parallelism: <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). Wavelength peak is centre wavelength (specific to bandpass filters)More products