22 June 2015 Manual wavefront holoscopy for inspection and visualization of engraved marks in progressive addition lenses
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Abstract
Manual wavefront holoscopy, or simply manual w-holoscopy, is presented as a simplification of our recently reported concept of wavefront holoscope [B. Perucho and V. Micó, J Biomed Opt. 19(1):16017 (2014)]. The w-holoscope introduces an extremely simple visualization and inspection system for permanent marks in progressive addition lenses (PALs) as an application of digital in-line holography, the digital version allowing visualization (recognition and identification) and characterization (quantitative measurement) of the engravings in PALs. Here, we present a further simplification of such concept by avoiding digital elements in the setup. The layout is extremely simple and defines a new concept of marking reader for visualization and identification of engraved marks in PALs. Experimental results are reported using different PALs.
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Beatriz Perucho, Beatriz Perucho, Jose Angel Picazo-Bueno, Jose Angel Picazo-Bueno, Carlos Ferreira, Carlos Ferreira, Vicente Micó, Vicente Micó, } "Manual wavefront holoscopy for inspection and visualization of engraved marks in progressive addition lenses", Proc. SPIE 9529, Optical Methods for Inspection, Characterization, and Imaging of Biomaterials II, 95291K (22 June 2015); doi: 10.1117/12.2184787; https://doi.org/10.1117/12.2184787
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