Apparatus for caries detection

Details Apparatus for caries detection Apparatus for caries detection

2010-03-15

2011-12-13

Ahmed, Samir (Department: 2624)

Image analysis

Applications

Biomedical applications

C382S132000, C382S254000, C433S029000, C433S215000, C356S497000

Reexamination Certificate

active

08077949

ABSTRACT:
An apparatus for imaging a tooth having a light source with a first spectral range and a second spectral range. A polarizing beamsplitter (18) 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 first and second polarization states are orthogonal. A first lens (22) in the return path directs image-bearing light from the tooth, through the polarizing beamsplitter (18), toward the sensor (68), and obtains image data from the redirected 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. Control logic enables the sensor to obtain either the reflectance image or the fluorescence image.

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