Illumination for optical scan and measurement

Apparatus for optical scanning, the apparatus comprising:

• an optical probe comprising an elongated cylinder of transparent material mounted upon an optical scanner body;
• one or more sources of scan illumination mounted in the probe distally from the scanner body and projecting scan illumination longitudinally through the probe toward the scanner body;
• a radially-reflecting optical element mounted in the probe between the sources of scan illumination and the scanner body, the radially-reflecting optical element comprising a conical mirror on a surface of the radially-reflecting optical element distal from the scanner body, the mirror oriented so as to project scan illumination radially away from a longitudinal axis of the probe with at least some of the scan illumination projected onto a scanned object;
• a lens mounted in the probe between the radially-reflecting optical element and the scanner body and disposed so as to conduct to an optical sensor scan illumination reflected from the scanned object;
• and
• the optical sensor mounted in the scanner body and disposed with respect to the lens so as to receive through the lens the scan illumination reflected from the scanned object.