Knight Optical (UK) Ltd 668nm Shortpass Colour Heat Glass Filter 50x50x3mmthk 668FCS5050

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.