SPECTRAL FILTER FOR AN INTRA-ORAL IMAGING SYSTEM
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United States of America Patent
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Issued Date -
Dec 5, 2013
app pub date -
May 30, 2012
filing date -
May 30, 2012
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Abstract
An imaging device is coupled to a wand having an optical source that generates light at a metrology wavelength, wherein the wand is included in an intra-oral imaging system. The imaging device comprises a spectral filter that transmits the light of the metrology wavelength and blocks light of other wavelengths. The imaging device also comprises a lens coupled to the spectral filter. Additionally, the imaging device further comprises a sensor, wherein the light of the metrology wavelength is incident on the sensor after being transmitted through the lens and the spectral filter, and wherein the sensor converts the light of the metrology wavelength that is incident on the sensor, into electrical signals to generate intra-oral imagery.
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