发明名称 |
Method and apparatus for examining anomalies on surfaces of objects. |
摘要 |
<p>Diseased areas of human teeth are identified by an orange-red fluorescence which is produced when the teeth are illuminated with visible light having a wavelength of less than approximately 434.5 nm. The teeth are viewed directly through an optical filter which blocks transmission at the illuminating wavelength. A peaking filter may be used to enhance the visibility of the fluorescence.</p> |
申请公布号 |
EP0113152(A2) |
申请公布日期 |
1984.07.11 |
申请号 |
EP19830201855 |
申请日期 |
1983.12.29 |
申请人 |
NORTH AMERICAN PHILIPS CORPORATION |
发明人 |
LAFOND, RONALD JOSEPH |
分类号 |
A61C19/04;A61B5/00;A61D5/00;G01N21/64;(IPC1-7):61B5/00;61B1/24;01N21/64 |
主分类号 |
A61C19/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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