title: Designing an optical disk lens without analytical definition of aspheric surfaces.
abstract: We have developed a new method to design aspheric lenses. The conventional technique is usually based on analytic definition of optical surfaces; in the new method discretely defined aspheres are used, and the final design is attained point by point with an iterative algorithm. Simulation results are compared with results obtained with conventional optical design software to prove that this new method is more effective and reliable for designing aspheric lenses, especially when the aspheric order is high.
authors.affiliation: Department of Precision Instruments, Tsinghua University, Beijing, China. nman@263.net
authors.forename: Ning
authors.initials: N
authors.lastname: Wei
authors.forename: Mali
authors.initials: M
authors.lastname: Gong
authors.forename: Ping
authors.initials: P
authors.lastname: Yan
authors.forename: Haitao
authors.initials: H
authors.lastname: Zhang