GCL-030131 Equilateral prisms
GCL-03013 Equilateral prisms
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
GCL-03013 Equilateral Prisms