Dispersion prism GCL-03013 series

equilateral

An equilateral dispersing prism has an equilateral triangle in the crosssection with the three sides of equal length. They are used for wavelength separation. A light ray is refracted twice, passing through the prism with total deviation denoted by qd top angle. Deviation is a function of refractive index, and hence wavelength. Angular dispersion is the difference in deviation for light rays having different wavelengths and varies with prism orientation. • Angles: 60˚±2' • Material: SF11 • Flatness: λ/4 • Surface Quality: 60-40 scratch-dig • Clear Aperture: 90% surface area • Coatings: 1/4 wave MgF2 coating at 550nm for all 3 surfaces