Colored Glass
Color glass filters are specialized optical components that achieve wavelength selection through the intrinsic absorption characteristics of precisely formulated glass materials. Unlike interference-based filters, these components provide broad spectral control through their material composition - a robust and economical approach for applications requiring consistent spectral performance from ultraviolet through infrared wavelengths.
Andover Corporation manufactures color glass filters using high-quality optical filter glass that is precision polished on both surfaces to achieve exceptional optical performance. Our comprehensive portfolio includes bandpass types for enhanced signal-to-noise ratio, long wave pass options for order sorting, and specialized heat-absorbing designs for thermal management. Each filter delivers transmitted wavefront quality of λ/4 per inch and parallelism to within 30 arc seconds, while maintaining 80-50 scratch-dig surface quality per MIL-M-13508 standards. Whether you need standard components or custom solutions, our precision fabrication processes ensure excellent spectral consistency and sharp contrast while providing the durability to withstand demanding application environments.
