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1. 发明授权

US4881811A Remote color measurement device 失效
标题翻译：远程颜色测量装置
公开(公告)号：US4881811A
公开(公告)日：1989-11-21
申请号：US156471
申请日：1988-02-16
申请人： John K. O'Brien
发明人： John K. O'Brien
IPC分类号： A61C19/10 , G01J3/02 , G01J3/08 , G01J3/46 , G01N21/25
CPC分类号： G01J3/02 , A61C19/10 , G01J3/0218 , G01J3/0251 , G01J3/08 , G01J3/46 , G01J3/502 , G01J3/508 , G01J3/524 , G01N21/255 , G01N2021/4742 , G01N2021/4752 , G01N2201/065 , G01N2201/084
摘要： A probe, for use with a spectrophotometer, which senses the reflectance of a sample remote from the spectrophotometer. The probe includes a housing having a probe portion positionable proximate the sample, and an integrating chamber disposed within the probe housing and having a radiation input port, a sample port for passing diffused radiation to the sample and returning reflected radiation from the sample, a reference port, and an exit port to receive radiation reflected from the sample through the sample port. The probe further includes a guide for directing radiation to the radiation input port from a radiation source, and an element, responsive to the exit port and the reference port, for selectively conveying reflected radiation from the sample and the wall of the integrating chamber in the probe to the remote spectrophotometer.
摘要翻译：用于分光光度计的探针，用于检测远离分光光度计的样品的反射率。探针包括具有靠近样品定位的探针部分的壳体和设置在探针壳体内并具有辐射输入端口的积分室，用于将扩散的辐射传递到样品并返回来自样品的反射辐射的采样端口，参考端口和出口，用于接收从样品通过样品端口反射的辐射。探头还包括用于将辐射从辐射源引导到辐射输入端口的引导件，以及响应于出口和参考端口的元件，用于选择性地将反射的辐射从样品和积分室的壁传递到探头到远程分光光度计。

2. 发明授权

US4654794A Methods for determining the proper coloring for a tooth replica 失效
标题翻译：确定牙齿复制品适当着色的方法
公开(公告)号：US4654794A
公开(公告)日：1987-03-31
申请号：US580864
申请日：1984-02-18
申请人： John K. O'Brien
发明人： John K. O'Brien
IPC分类号： A61C19/10 , G01J3/10 , G01J3/46 , G01J3/50 , G06T11/00 , G06F15/42 , A61C13/08
CPC分类号： G06T11/001 , A61C19/10 , G01J3/0251 , G01J3/10 , G01J3/50 , G01J3/508 , G01J3/524 , G01J2003/467 , G01J2003/468 , G01J3/463 , G01J3/465
摘要： Polychromatic light is directed at the surface of a live tooth and color data of light reflected therefrom is recorded, multiplied by the stored power distribution of a first standard illuminant and converted to three tristimulus values. Such values are compared with color values of a first group of stored color dental shades, and if a match occurs within a given tolerance, an indication of the nature of the recipe is produced. A second level search may be carried out against a substantially larger group of stored dental shades in the event of a no-match condition resulting from the first search. Excellent lifelike reproduction of the patient's tooth is enhanced by checking for least metamerism by operating upon the measured data with other illumination standards and selecting the best match under all lighting conditions. Additionally, a translucency factor is calculated, and employed to reduce the opacity of the inner opaque layer of the recipe which would otherwise be indicated should the patient's tooth not have a high degree of translucency. The calculation of a fluorescence factor also enhances excellent reproduction of the live tooth, and is employed to indicate the addition of a fluorescent ingredient to the final recipe.
摘要翻译：多色光指向活牙的表面，并记录从其反射的光的颜色数据乘以第一标准光源的存储功率分布并转换为三个三刺激值。将这些值与存储的彩色牙科阴影的第一组的颜色值进行比较，并且如果在给定的公差内发生匹配，则产生配方的性质的指示。在第一次搜索产生的不匹配条件的情况下，可以针对大量存储的牙科阴影进行第二级搜索。通过使用其他照明标准操作测量数据并在所有照明条件下选择最佳匹配来检查患者牙齿的极好的逼真的再现。另外，计算半透明因子，并且用于减少食谱的内不透明层的不透明度，否则如果患者的牙齿不具有高度的半透明度，则不透明度。荧光因子的计算也提高了活牙的优异繁殖，并且用于指示在最终配方中添加荧光成分。

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