Ronchi test with variable-frequency rulings

dc.creatorFERMIN SALOMON GRANADOS AGUSTIN
dc.creatorANSELMO ALEJANDRO CORNEJO RODRIGUEZ
dc.date2009-01
dc.date.accessioned2023-07-25T16:23:09Z
dc.date.available2023-07-25T16:23:09Z
dc.identifierhttp://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1186
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7806384
dc.descriptionWe present a new method for testing an optical surface. It uses the Ronchi test with variable-frequency rulings and a liquid-crystal display. The rulings can be formed by substructuring the spacing of a Ronchi ruling or combining several classical Ronchi rulings in a single variable-frequency ruling. This change allows us to observe smaller defects on the surface, because it enlarges the spatial-frequency domain of the ruling, and a larger dynamic range of detection of the Ronchi test can be obtained instead of increasing the resolution of the detection of the Ronchi test by iteratively changing classical Ronchi rulings with higher line density. As a result, we have found that it is possible to measure defects on a optical surface that are of size ≥57 nm (λ/11).
dc.formatapplication/pdf
dc.languageeng
dc.publisherOptical Engineering
dc.relationcitation:Salinas Luna, J., et al., (2009). Ronchi test with variable-frequency rulings, Optical Engineering. Vol. 48(1):013604-1-013604-7
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectinfo:eu-repo/classification/cti/1
dc.subjectinfo:eu-repo/classification/cti/22
dc.subjectinfo:eu-repo/classification/cti/2209
dc.subjectinfo:eu-repo/classification/cti/220906
dc.subjectinfo:eu-repo/classification/cti/220906
dc.titleRonchi test with variable-frequency rulings
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/acceptedVersion
dc.audiencestudents
dc.audienceresearchers
dc.audiencegeneralPublic


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