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Achromatic doublet lens is designed to eliminate chromatic and spherical aberrations inherent in singlet lenses. When used on-axis, an achromatic lens focuses an parallel input beam to a perfect "point", limited only by the effects of diffraction. This performance can be achieved over a broadband of wavelength.
Achromatic triplet lens system comprising, in order from the object side, a first positive meniscus lens component having a convex surface on the object side, a second biconcave lens component, a third biconvex lens component and a stop; and configured so as to correct aspherical aberration and coma at the same time by using at least one aspherical surface on the second and the third lens components.
Specs | Commercial | High Precision |
Diameter Tolerance | ±0.1mm | ±0.02mm |
Center Thickness Tolerance | ±0.1mm | ±0.01mm |
Centering | < 3' | < 1' |
Surface Quality | 60-40 S/D | 10-5 S/D |
Power/ Irregularity | 2/0.5 | 1/0.2 |
Coating | Upon Request |