Search Results - di+xu

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Telecentric and Broadband Achromatic Objective Lens Systems and Method of Use in Optical Coherence Tomography for the Metrology of Freeform Optical Components
ProblemThe application of optical coherence tomography for the metrology of freeform optical components requires objective lens systems that are highly telecentric and broadband achromatic.SolutionTo meet these requirements, two new objective lens designs are invented: a large field-of-view objective, and a large numerical aperture objective. Specifications...
Published: 9/30/2020   |   Inventor(s): Jannick Rolland-Thompson, Di Xu, Romita Chaudhuri
Category(s): Imaging, Optics, Devices
Cascade Fourier Domain Optical Coherence Tomography for the Metrology of Optical Components Including Freeform
ProblemRecent advances in deterministic grinding and polishing of optical quality surfaces have enabled the manufacturing of optical components with increasingly more complex surface shapes. Rotationally variant, i.e. freeform, optical components are of increasing interest to the optical design community as they allow for substantial advances in optical...
Published: 11/14/2019   |   Inventor(s): Jannick Rolland-Thompson, Di Xu
Category(s): Optics