Source: http://www.google.com.au/patents/US5851113
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Patent US5851113 - Apparatus and method for measuring the color of teeth - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsColor measuring systems and methods such as for determining the color or other characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object/tooth being measured. Light from the perimeter...http://www.google.com.au/patents/US5851113?utm_source=gb-gplus-sharePatent US5851113 - Apparatus and method for measuring the color of teethAdvanced Patent SearchPublication numberUS5851113 APublication typeGrantApplication numberUS 08/909,991Publication date22 Dec 1998Filing date12 Aug 1997Priority date2 Jan 1996Fee statusPaidAlso published asCA2238499A1, CA2238499C, EP0877577A1, EP0877577A4, EP0877577B1, US5759030, US5871351, US6264470, US7018204, US7244122, US20010029009, US20010049083, US20080102417, WO1997024075A1Publication number08909991, 909991, US 5851113 A, US 5851113A, US-A-5851113, US5851113 A, US5851113AInventorsWayne D. Jung, Russell W. Jung, Alan R. LoudermilkOriginal AssigneeLj Laboratories, L.L.C.Export CitationBiBTeX, EndNote, RefManPatent Citations (44), Non-Patent Citations (66), Referenced by (29), Classifications (44), Legal Events (6) External Links: USPTO, USPTO Assignment, EspacenetApparatus and method for measuring the color of teethUS 5851113 AAbstract Color measuring systems and methods such as for determining the color or other characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object/tooth being measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics to determine information regarding the height and angle of the probe with respect to the object/tooth being measured. Under processor control, the color measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe may have a removable or shielded tip for contamination prevention. A method of producing dental prostheses based on measured data also is disclosed. Measured data also may be stored and/or organized as part of a patient data base.
What is claimed is: 1. A method, comprising the steps of:positioning a probe in proximity to a dental object, wherein the probe provides light to a surface of the dental object from one or more light sources, and receives light from the dental object through a plurality of light receivers, wherein light from the light receivers is coupled to one or more optical sensors; taking a plurality of measurements with the one or more optical sensors; and determining at least a peak intensity of received light based on the measurements as the probe is a distance away from the surface of the dental object, and determining at least an intensity of light as the probe is at or about the surface of the dental object, wherein translucence data and color data are generated based on at least the peak intensity and the intensity. 2. The method of claim 1, further comprising the step of generating fluorescence data or surface texture data based on the measurements.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Present invention will be described in greater detail with reference to certain preferred embodiments. At various places herein, reference is made to an "object," for example. It should be understood that an exemplary use of the present invention is in the field of dentistry, and thus the object typically should be understood to include teeth, dentures, dental-type cements or the like, although for discussion purposes in certain instances reference is only made to the "object."
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as teeth and dental prosthesis, in particularUS6132210 *30 Aug 199917 Oct 2000Shade Analyzing Technologies, Inc.Tooth shade analyzer system and methodsUS6157454 *2 Aug 19995 Dec 2000Colorimeter, LlcMiniature colorimeterUS62101593 Feb 20003 Apr 2001Shade Analyzing Technologies, Inc.System and methods for analyzing tooth shadesUS6276933 *21 Mar 200021 Aug 2001Ivan MelnykDental translucency analyzer and methodUS630593316 Oct 200023 Oct 2001Shade Analyzing Technologies, Inc.Tooth shade analyzer system and methodsUS635804730 Jul 200119 Mar 2002Shade Analyzing Technologies, Inc.Tooth shade analyzer system and methodsUS65258192 Aug 199925 Feb 2003Pocketspec Technologies Inc.Colorimeter for dental applicationsUS657575110 Mar 200010 Jun 2003Shade Analyzing Technologies, Inc.Interactive dental restorative networkUS67509716 Sep 200215 Jun 2004X-Rite, IncorporatedOptical measurement device and related processUS678672630 Jul 20017 Sep 2004Shade Analyzing Technologies, Inc.Interactive dental restorative networkUS68329137 Apr 200321 Dec 2004Shade Analyzing Technologies, Inc.Tooth shade analyzer system and methodsUS68678646 Sep 200215 Mar 2005X-Rite, IncorporatedOptical measurement device and related processUS69587666 Apr 200125 Oct 2005Gendex CorporationDental video imaging systemUS696456724 Dec 200215 Nov 2005Ivoclar Vivadent AgDental camera with mouthpieceUS700612631 May 200228 Feb 2006Ivoclar Vivadent AgColor analyzing apparatus with polarized light sourceUS703098618 Nov 200418 Apr 2006X-Rite IncorporatedOptical measurement device and related processUS70501688 Dec 200023 May 2006X-Rite, IncorporatedOptical measurement device and related processUS7244122 *12 Jul 200117 Jul 2007Jjl Technologies LlcMethods for determining optical characteristics of dental objectsUS73414503 Oct 200311 Mar 2008Shade Analyzing Technologies, Inc.Tooth shade scan system and methodUS73932099 Dec 20041 Jul 2008Shade Analyzing Technologies, Inc.Tooth shade analyzer system and methodsUS758195316 Jul 20041 Sep 2009Shade Analyzing Technologies, Inc.Interactive dental restorative networkUS769806817 Jun 200513 Apr 2010Cadent Ltd.Method for providing data associated with the intraoral cavityUS794684528 May 200824 May 2011Shade Analyzing Technologies, Inc.Tooth shade analyzer system and methodsUS810508422 Jul 200931 Jan 2012Shade Analyzing Technologies, Inc.Interactive dental restorative networkUS879011831 Aug 200629 Jul 2014Shade Analyzing Technologies, Inc.Interactive dental restorative networkDE19922870A1 *19 May 19997 Dec 2000Paul WeiglAutomatic adjustment of dental restoration work comprises submitting CAD data to iterative process comprising analyzing properties of natural tooth, calculating required values, applying material to produce these and correctingEP1607041A217 Jun 200521 Dec 2005Cadent Ltd.Method for providing data associated with the intraoral cavity* Cited by examinerClassifications U.S. Classification433/29, 433/203.1, 356/405International ClassificationG01J3/51, A61C5/00, A61B1/24, G01J3/50, G01N21/57, G01N21/47, G01J3/02, G01J3/443, A61C19/04, A61C13/08, A61B1/00, G01J3/46, A61C19/10Cooperative ClassificationG01N21/474, G01J3/508, G01N21/57, G01J3/46, A61B2562/247, G01J3/0218, G01J3/513, G01J3/51, G01J3/02, G01J3/463, A61B2560/0233, A61B5/4547, A61C19/10, G01J3/50, A61C19/04European ClassificationG01J3/02, A61B5/45R2B, G01J3/51A, A61C19/04, G01J3/51, G01J3/50T, G01J3/46D, G01J3/02B5, G01J3/46, A61C19/10, G01N21/57, G01J3/50, G01N21/47F2Legal EventsDateCodeEventDescription22 Dec 2010SULPSurcharge for late paymentYear of fee payment: 1122 Dec 2010FPAYFee paymentYear of fee payment: 1226 Jul 2010REMIMaintenance fee reminder mailed27 Jul 2007ASAssignmentOwner name: JJL TECHNOLOGIES LLC, ILLINOISFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LJ LABORATORIES LLC;JUNG, WAYNE D.;JUNG, RUSSELL W.;AND OTHERS;REEL/FRAME:019597/0461Effective date: 20070727Owner name: JJL TECHNOLOGIES LLC,ILLINOIS22 Jun 2006FPAYFee paymentYear of fee 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