Apparatus for imaging the inner surface of a cavity within a...

Details Apparatus for imaging the inner surface of a cavity within a... Apparatus for imaging the inner surface of a cavity within a...

G - Physics

02

B

G02B 23/24 (2006.01) G01B 11/30 (2006.01) G01N 21/954 (2006.01)

Patent

CA 2702379

An apparatus 2 for imaging the inner surface 4 of a cavity in a workpiece 6 has an optical system 8 including a panoramic field of view that is linked to an imager 10 and a downstream evaluation device by an image communication link. The apparatus 2 furthermore has an illumination system 16 including a light source 18 to illuminate an imaging region of the inner surface 4, which region has been captured by the optical system 8. According to the invention, the illumination system 16 is disposed in such a way relative to optical system 8, and for which the beam path is selected in such a way, that a first axial section of the imaging region is able to be illuminated under brightfield illumination, while simultaneously a second axial region spaced apart from the first axial region is able to be illuminated under darkfield illumination.

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