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Article: Development of an instrument for measuring curvature of lens
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TitleDevelopment of an instrument for measuring curvature of lens
 
AuthorsTan, C1
Lin, B1
Chen, B1
Cao, X1
Pan, T1
Jin, W1
 
KeywordsAuto-Measuring System
Curvature Measurement
Edge Detection
Newton's Rings
 
Issue Date2006
 
PublisherS P I E - International Society for Optical Engineering. The Journal's web site is located at http://www.spie.org/app/Publications/index.cfm?fuseaction=proceedings
 
CitationProceedings of SPIE - The International Society for Optical Engineering, 2006, v. 6150 I [How to Cite?]
DOI: http://dx.doi.org/10.1117/12.677962
 
AbstractA new edge detection method based on nonlinear fitting is used in the measurement of the curvature of lens in this paper. Non-contact Newton's rings are formed by an interferometer. In order to detect the diameters of dark rings and calculate the lens radius of curvature, the edge detection method is used for the image process. The auto-measuring system of lens curvature captures the gray scale image by CMOS image sensor, and then processes the data and calculates the position by a microprocessor. The scale of image pixels corresponding to Newton's rings that are related to the radius of curvature is obtained by scanning fringes or other optical methods. The accuracy of measurement is better than 0.3 percent.
 
ISSN0277-786X
2013 SCImago Journal Rankings: 0.203
 
DOIhttp://dx.doi.org/10.1117/12.677962
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorTan, C
 
dc.contributor.authorLin, B
 
dc.contributor.authorChen, B
 
dc.contributor.authorCao, X
 
dc.contributor.authorPan, T
 
dc.contributor.authorJin, W
 
dc.date.accessioned2010-09-17T10:12:36Z
 
dc.date.available2010-09-17T10:12:36Z
 
dc.date.issued2006
 
dc.description.abstractA new edge detection method based on nonlinear fitting is used in the measurement of the curvature of lens in this paper. Non-contact Newton's rings are formed by an interferometer. In order to detect the diameters of dark rings and calculate the lens radius of curvature, the edge detection method is used for the image process. The auto-measuring system of lens curvature captures the gray scale image by CMOS image sensor, and then processes the data and calculates the position by a microprocessor. The scale of image pixels corresponding to Newton's rings that are related to the radius of curvature is obtained by scanning fringes or other optical methods. The accuracy of measurement is better than 0.3 percent.
 
dc.description.naturelink_to_subscribed_fulltext
 
dc.identifier.citationProceedings of SPIE - The International Society for Optical Engineering, 2006, v. 6150 I [How to Cite?]
DOI: http://dx.doi.org/10.1117/12.677962
 
dc.identifier.doihttp://dx.doi.org/10.1117/12.677962
 
dc.identifier.issn0277-786X
2013 SCImago Journal Rankings: 0.203
 
dc.identifier.scopuseid_2-s2.0-33645316808
 
dc.identifier.urihttp://hdl.handle.net/10722/91071
 
dc.identifier.volume6150 I
 
dc.languageeng
 
dc.publisherS P I E - International Society for Optical Engineering. The Journal's web site is located at http://www.spie.org/app/Publications/index.cfm?fuseaction=proceedings
 
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineering
 
dc.relation.referencesReferences in Scopus
 
dc.subjectAuto-Measuring System
 
dc.subjectCurvature Measurement
 
dc.subjectEdge Detection
 
dc.subjectNewton's Rings
 
dc.titleDevelopment of an instrument for measuring curvature of lens
 
dc.typeArticle
 
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<contributor.author>Pan, T</contributor.author>
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Author Affiliations
  1. Zhejiang University