
Astronomy Filters
Astronomy filters are precision optical components engineered to enhance the observation and imaging of celestial objects by isolating specific wavelengths of astronomical interest while rejecting unwanted radiation. These specialized filters enable astronomers to study specific features of stars, nebulae, galaxies, and other astronomical phenomena with exceptional clarity - critical capabilities that have supported breakthrough discoveries from ground-based observatories to space-borne instruments.
Andover Corporation manufactures astronomy filters using advanced thin-film technologies and premium optical materials, with options spanning from standard photometric systems to specialized solutions for infrared astronomy. Our comprehensive portfolio includes Johnson/Bessell and Kron/Cousins UBVRI sets optimized for different detector technologies, Sloan filters with non-overlapping bands for digital surveys, and specialized filters for solar and infrared observation. Every filter delivers exceptional image quality with transmitted wavefront of λ/4 per inch and parallelism to 30 arc seconds or better, ensuring reliable performance in demanding research environments. Whether you need standard photometric filters or custom solutions for space-based instruments, our space-qualified filters continue enabling critical scientific discoveries worldwide.