title: Computer-aided lens assembly.
abstract: We propose a computer-aided method of lens manufacture that allows assembly, adjustment, and test phases to be run concurrently until an acceptable level of optical performance is reached. Misalignment of elements within a compound lens is determined by a comparison of the results of physical ray tracing by use of an array of Gaussian laser beams with numerically obtained geometric ray traces. An estimate of misalignment errors is made, and individual elements are adjusted in an iterative manner until performance criteria are achieved. The method is illustrated for the alignment of an air-spaced doublet.
authors.affiliation: Wolfson School of Mechanical and Manufacturing Engineering, Loughborough University, Ashby Road, Loughborough, Leicestershire, LE11 3TU, United Kingdom.
authors.forename: Richard
authors.initials: R
authors.lastname: Tomlinson
authors.forename: Rob
authors.initials: R
authors.lastname: Alcock
authors.forename: Jon
authors.initials: J
authors.lastname: Petzing
authors.forename: Jeremy
authors.initials: J
authors.lastname: Coupland