Surgery – Endoscope – Having imaging and illumination means
Reexamination Certificate
2005-08-16
2005-08-16
Leubecker, John P. (Department: 3739)
Surgery
Endoscope
Having imaging and illumination means
C359S718000, C356S600000
Reexamination Certificate
active
06929604
ABSTRACT:
An optic for the imaging optics on the distal end of a flexible fiberoptic endoscope or rigid borescope inspection tool. The image coverage is over a narrow (<20 degrees) field of view with very low optical distortion (<5% pin cushion or barrel distortion), compared to the typical <20% distortion. The optic will permit non-contact surface roughness measurements using optical techniques. This optic will permit simultaneous collection of selected image plane data, which data can then be subsequently optically processed. The image analysis will yield non-contact surface topology data for inspection where access to the surface does not permit a mechanical styles profilometer verification of surface topology. The optic allows a very broad spectral band or range of optical inspection. It is capable of spectroscopic imaging and fluorescence induced imaging when a scanning illumination source is used. The total viewing angle for this optic is 10 degrees for the full field of view of 10 degrees, compared to 40-70 degrees full angle field of view of the conventional gradient index or GRIN's lens systems.
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Stone Gary F.
Trebes James E.
Carnahan L. E.
Leubecker John P.
Staggs Michael C.
The Regents of the University of California
Thompson Alan H.
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