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Colour Glass Filter

 

Optical glass filters are used in many different applications in science and industry. They can be used as broadband, bandpass, or long-wave pass filters

 Alpha  Optics offers a wide selection of glass filters. They are made from finest quality optical glass from suppliers like Schott and Hoya, covering the UV, visible, and near-infrared wavelength regions. These optical filters are precision polished for demanding research or OEM applications. They are widely used for order sorting, light attenuation, and spectral selection of a broadband source, and they are significantly less expensive than multi-layer coated filters which have sharper cut-on and cut-off wavelengths and better rejection.


Specification:
Material: colored glass
Dimension Tolerance: +/-0.1mm
Parallelism:< 3 arc minutes
Wavefront Distortion: λ per 25mm@632.8nm
Surface quality: 80-50 scratch and dig
Angle of Incidence: +/-5deg
Transmission: >85%
Blocking: <1%
Cut on/Cut off Wavelength: +/-10nm
Temperature Range: -50℃ to +100℃