Aspects of basic OCT engine technologies for high speed optical coherence tomography and light source and other improvements in optical coherence tomography
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United States of America Patent
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Jun 13, 2006
Grant Date -
Jul 24, 2003
app pub date -
Aug 5, 2002
filing date -
Aug 3, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
An optical coherence tomography (OCT) system including an interferometer provides illuminating light along a first optical path to a sample and an optical delay line and collects light from the sample along a second optical path remitted at several scattering angles to a detector. In one embodiment, illuminating light is directed along a number of incident light paths through a focusing lens to a sample. The light paths and focusing lens are related to the sample and to both the incident light source and the detector. In another embodiment, a focusing system directs light to a location in the sample. A transmission grating or acousto-optic modulator directs light from the sample at an angle representative of the wavelength of the incident light on the transmission grating or acousto-optic modulator.
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