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GCL-0106 Achromatic-Doublets
Computer-optimized for infinite conjugation
Excellent performance
The achromatic-doublet consists of a positive low-index (crown) and a negative high-index (flint) lens. These lenses are computer-optimized for infinite conjugate ratio. They also exhibit excellent paraxial performance, minimal spherical aberration, coma and smallest chromatic aberration. When used for focusing or collimating, the convex lens or the smaller radius surface always faces the collimated light, while used to image the convex lens must be adjacent to the object or image with longer distance.
Large aperture achromatic lenses are air-spaced, and can be found under GCL-0107.
