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1. 发明授权

US06522407B2 Optical detection dental disease using polarized light 有权
标题翻译：光学检测牙病使用偏振光
公开(公告)号：US06522407B2
公开(公告)日：2003-02-18
申请号：US10100824
申请日：2002-03-18
申请人： Matthew J. Everett , Billy W. Colston, Jr. , Ujwal S. Sathyam , Luiz B. Da Silva , Daniel Fried
发明人： Matthew J. Everett , Billy W. Colston, Jr. , Ujwal S. Sathyam , Luiz B. Da Silva , Daniel Fried
IPC分类号： G01J400
CPC分类号： A61B5/0088 , A61B5/0066 , A61B5/0073 , G01B9/02091 , G01B2290/70 , G01N21/4795
摘要： A polarization sensitive optical imaging system is used to detect changes in polarization in dental tissues to aid the diagnosis of dental disease such as caries. The degree of depolarization is measured by illuminating the dental tissue with polarized light and measuring the polarization state of the backscattered light. The polarization state of this reflected light is analyzed using optical polarimetric imaging techniques. A hand-held fiber optic dental probe is used in vivo to direct the incident beam to the dental tissue and collect the reflected light. To provide depth-resolved characterization of the dental tissue, the polarization diagnostics may be incorporated into optical coherence domain reflectometry and optical coherence tomography (OCDR/OCT) systems, which enables identification of subsurface depolarization sites associated with demineralization of enamel or bone.
摘要翻译：偏振敏感光学成像系统用于检测牙组织中极化的变化，以帮助牙科疾病如龋齿的诊断。通过用偏振光照射牙组织并测量背向散射光的偏振状态来测量去极化度。使用光学偏振成像技术分析该反射光的偏振状态。体内使用手持光纤牙科探针将入射光束引导到牙齿组织并收集反射光。为了提供牙科组织的深度分辨表征，偏振诊断可以被并入到光学相干畴反射测量和光学相干断层扫描（OCDR / OCT）系统中，其能够识别与釉质或骨的脱矿质相关的地下去极化位点。

2. 发明申请

US20060223032A1 Near-infrared transillumination for the imaging of early dental decay 审中-公开
标题翻译：近红外透照用于早期牙齿衰变的成像
公开(公告)号：US20060223032A1
公开(公告)日：2006-10-05
申请号：US11347637
申请日：2006-02-03
申请人： Daniel Fried , Robert Jones
发明人： Daniel Fried , Robert Jones
IPC分类号： A61C5/00 , A61B5/117
CPC分类号： A61B5/0088
摘要： A method for detecting tooth decay and other tooth anomalies wherein a tooth is transilluminated with a near-infrared light source preferably in the range from approximately 795-nm to approximately 1600-nm, more preferably in the range from approximately 830-nm to approximately 1550-nm, more preferably in the range from approximately 1285-nm to approximately 1335-nm, and more preferably at a wavelength of approximately 1310-nm, and the light passing through the tooth is imaged for determining an area of decay in the tooth. The light source is a fiber-optic bundle coupled to a halogen lamp or more preferably a superluminescent diode, and the imaging device is preferably a CCD camera or a focal plane array (FPA).
摘要翻译：一种用于检测蛀牙和其他牙齿异常的方法，其中用近红外光源透照牙齿，优选在约795nm至约1600nm的范围内，更优选在约830nm至约1550的范围内 -nm，更优选在约1285nm至约1335nm的范围内，更优选在约1310nm的波长处，并且对通过牙齿的光成像以确定牙齿中的衰变区域。光源是耦合到卤素灯或更优选超发光二极管的光纤束，并且成像装置优选为CCD照相机或焦平面阵列（FPA）。

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