BARRINGTON, N.J., June 16, 2010 — Edmund Optics has introduced the TechSpec plastic hybrid aspheric lenses. The color-corrected molded aspheric-diffractive lenses are designed to eliminate chromatic aberrations caused by broadband light sources. They feature a proprietary diffraction-limited design and are suited for imaging and ophthalmic applications and for use with tunable laser and broadband or multispectral illumination sources. The aspheric base eliminates spherical aberration, allowing for better image quality. The diffractive surface features a negative optical dispersion that yields good color correction and minimized chromatic aberration. The company says that, because they have an all-plastic, monolithic design, they are much lighter weight than comparable aspherized achromats. They are also available in higher numerical aperture designs. These lenses are limited by the inherent diffraction efficiency of the aspheric surface, so they yield a lower overall transmission than comparable aspherized achromats. Featuring a low-cost molded design, they are available in twenty different coated and uncoated versions in sizes ranging from 12-mm diameter × 9-mm focal length up to 12-mm diameter × 24-mm focal length, and 25-mm diameter × 20-mm focal length to 25-mm diameter × 50-mm focal length. They are in-stock and available for immediate delivery.