Advancing humanity's view of the universe through precision optics that capture the faintest signals from the depths of space. For over 45 years, Andover Corporation has been at the forefront of astronomical innovation, enabling ground-breaking discoveries from Earth's surface to the edges of known space.

Modern astronomy demands unprecedented optical precision:

• Extreme wavelength selectivity for spectral line studies
• Ultra-high transmission efficiency for the best signal to noise ratio
• Superior optical quality for diffraction-limited imaging
• Cryogenic compatibility for space-based instruments
• Custom solutions for unique telescope designs
• Reliable performance in harsh environments from ground to orbit

Our specialized astronomical filters and coatings are optimized for:

• Solar observation and research
• Deep-sky imaging
• Planetary science
• Spectroscopic studies
• Space-based telescopes
• Radio astronomy
• Hyperspectral imaging
• CubeSat and SmallSat missions

From the smallest university observatories to the largest space telescopes, we've earned our reputation by pushing the boundaries of what's possible in astronomical observation. Andover Corporation delivers the critical components that enable modern astronomy - from narrow-band H-alpha filters and precision UBVRI photometric sets to custom dichroics and infrared bandpass filters. Our image-quality optics and environmentally stable coatings ensure maximum throughput and exceptional performance when every photon counts.