One way to amplify the optical memory capacity is to increase simultaneously the numerical aperture of the reading and writing objective, to decrease the laser wavelength and to use optical discs with multilayer construction. In this paper we show how to optimize and design single lens aspheric objectives with high and super high numerical aperture for red and blue DVD. We demonstrate the image quality of constructions of an objective for red DVD with high numerical aperture 0.9, an objective for blue DVD with super high numerical aperture 0.95 and collimators for red and blue DVD.

Date Published: 9 June 2006
PDF: 5 pages
Proc. SPIE 6252, Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information, 625214 (9 June 2006); doi: 10.1117/12.677046

Published in SPIE Proceedings Vol. 6252:
Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information
Yury Denisyuk; Ventseslav Sainov; Elena Stoykova, Editor(s)