Aspheric lenses have surfaces which do not resemble segments of a sphere or cylinder. Instead, aspheric lenses ha ve a profile that changes in curvature across the surface. This type of lens is ...

The Model 5720-C kit contains six lenses mounted in threaded holders and a Model 5709 RMS-threaded adapter for mounting the lenses as microscope objectives. The ...

The aspheric profile used is frequently a conic surface of revolution about the lens axis, matched in design to the shape of the second surface. The shape of this lens produces a dramatic reduction of ...

Beneficially also a correctly formed aspheric lens surface may cancel or control spherical aberration. As a result, more laser energy can be concentrated into a smaller area. Benefiting from a ...

(From Tamron lens literature) The optical system of the new SP AF 14mm F/2.8 Aspherical (IF) lens, composed of 14 elements in 12 groups, includes two Hybrid Aspherical lens elements. These large ...