A design is presented for an objective lens for the Compact Disc system. The objective is a single-element glass lens with one aspheric replicated surface and one flat surface. The temperature behavior of the lens is studied and compared with that of a plastic lens. The aspheric surface is manufactured by replication and is suitable for high-quality mass production.
No takes yet. Share an insight, caveat, or question.
Braat et al. (1985) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: