Magnetorheological Finishing (MRF) offers an effective way for correcting transmitted wavefront of lenses. Optimax Systems uses this MRF process to correct aspheric lenses in transmission to subwavelength errors
This paper defines and details the parameters used in specifying centration of a lens and techniques used to check location of and position the optical axis
This text assumes the manufacture of a precision glass lens of approximately 50mm diameter using grinding and polishing techniques, taking into consideration optical material, component size, shape, and manufacturing tolerances
In this paper by Katie Schwertz, the estimation or rule of thumb is concisely stated. A corresponding equation, if applicable, is also included. Relevant background information is presented to the reader to give context as to when this rule can be applied. The details of how the rule should be ....
This article focuses on edge thickness difference (ETD) as a common callout that relates to the amount of acceptable beam-deviation error for lenses
This paper will explain terms unique to prism manufacturing, explaining when they are useful
This paper will examine options in construction of cemented lens assemblies, and considerations for mechanical mounting and cement selection will be offered
This paper details the motivation for selecting alternate optical materials within an established design and offers considerations when doing so.
This paper will define surface irregularity for spherical surfaces, offer information on measurement methods for testing surface irregularities, and some specification guidelines
This paper will review tolerancing schemes for spherical radii, including the historical origins. It finishes with recommendations for specifying tolerances for spherical radii
This paper will explain the role mechanical attribute tolerancing plays in balancing lens function and cost and will help in choosing an optimum tolerance
This presentation will look at sources of lens centration manufacturing errors in singlets and cemented doublets, how manufacturing errors can be modeled in lens design software and how to specify centration tolerances on lens drawing
This paper is an introduction to specifications and tolerances intended fo more throughly define figure and form of precision optical elements. Specifications that will be outlined here include mid-spatial frequency wavefront error, slope and PVr
This paper discusses difficulty in accurately interpreting surface form data from a phase shifting interferometer measurement of a thin film interference coated surfaces
This paper will explain general process of specifying, applying and measuring thin film coating
This paper will first detail where slope error originated from, what it represents and the role it plays in the optical performance