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公开(公告)号:US20080063998A1
公开(公告)日:2008-03-13
申请号:US11530987
申请日:2006-09-12
申请人: Rongguang Liang , Victor C. Wong , Michael A. Marcus , Mark E. Bridges , Paul O, McLaughlin , Peter D. Burns , David L. Patton
发明人: Rongguang Liang , Victor C. Wong , Michael A. Marcus , Mark E. Bridges , Paul O, McLaughlin , Peter D. Burns , David L. Patton
CPC分类号: A61B5/0088 , A61B1/043 , A61B1/0607 , A61B1/0638 , A61B1/0646 , A61B1/0684 , A61B1/24 , A61B5/0035 , A61B5/0066 , A61B5/0071 , A61B5/0075 , A61B5/4547 , A61B5/742 , A61B5/7425 , A61C1/088 , G01B9/02091 , G01B11/2441 , G01J3/02 , G01J3/0213 , G01J3/0224 , G01J3/0272 , G01J3/10 , G01J3/4406 , G01J3/508 , G01N21/4795 , G01N21/6445 , G01N21/6456 , G01N21/6486 , G01N2021/1787
摘要: An apparatus for obtaining an image of a tooth having at least one light source providing incident light having a first spectral range for obtaining a reflectance image (122) from the tooth and a second spectral range for exciting a fluorescence image (120) from the tooth. A polarizing beamsplitter (18) in the path of the incident light from both sources directs light having a first polarization state toward the tooth and directs light from the tooth having a second polarization state along a return path toward a sensor (68), wherein the second polarization state is orthogonal to the first polarization state. A first lens (22) in the return path directs image-bearing light from the tooth toward the sensor (68), and obtains image data from the portion of the light having the second polarization state. A long-pass filter (15) in the return path attenuates light in the second spectral range.
摘要翻译: 一种用于获得具有至少一个光源的齿的图像的装置,所述至少一个光源提供具有第一光谱范围的入射光,以从所述牙齿获得反射图像(122)和用于从所述牙齿激发荧光图像(120)的第二光谱范围 。 来自两个源的入射光的路径中的偏振分束器(18)将具有第一偏振态的光朝向齿引导,并将来自具有第二偏振态的齿沿着返回路径引导到传感器(68),其中, 第二偏振态与第一偏振态正交。 返回路径中的第一透镜(22)将来自齿的图像承载光朝向传感器(68)引导,并从具有第二偏振状态的光的部分获得图像数据。 返回路径中的长通滤波器(15)衰减第二光谱范围内的光。