New approach to optical assembly and cementing

Robert E. Parks

doi:10.1117/12.2319459

14 September 2018 New approach to optical assembly and cementing

Robert E. Parks

Proceedings Volume 10742, Optical Manufacturing and Testing XII; 107420C (2018) https://doi.org/10.1117/12.2319459
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

A novel method of projecting a reference axis in space for use in optical assembly of centered elements such as assembly in a barrel or in cementing multi-element lenses is presented. An axicon grating, a set of concentric, uniformly spaced circles, when illuminated with a point source of light creates a line of bright spots surrounded by concentric rings in both transmission through, and reflection from, the grating. This axis is easily interrogated with an autostigmatic microscope to gauge the distance a center of curvature, or other lens conjugate, lies from the axis created by the grating.

Conference Presentation

Citation Download Citation

Robert E. Parks "New approach to optical assembly and cementing", Proc. SPIE 10742, Optical Manufacturing and Testing XII, 107420C (14 September 2018); https://doi.org/10.1117/12.2319459

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