Diffraction-limited singlet lenses
With the advent of optical disc
systems, the need for compact,
low-weight, and inexpensive microscope objectives has led to the development of small, well-corrected singlet lenses. The reduction of aberrations (mainly spherical aberration and coma) is achieved by the combination of mostly old ideas and new technologies like aspherical lens shapes, inhomogeneous lens material, and the application of holographic structures.
Become a member or log in to view the full text of this article.
OSA Members get the full text of Optics & Photonics News, plus a variety of other member benefits.