Patent ID: 8437002

Claim:
Imaging optical inspection setup for inspecting a sample ( 5 ), comprising a source of light ( 3 ) illuminating a specified portion of the sample surface by non-collimated light ( 4 ) in a plane of illumination, at least one pinhole ( 7 ) arranged in a path of reflected light ( 4 ′) reflected from said portion of the sample ( 5 ), said pinhole ( 7 ) extending at least in the plane of illumination and transmitting said reflected light ( 4 ′) in a position- and angle-preserving manner, and at least one screen and/or at least one position-sensitive detector system ( 8 ) arranged in the path of light ( 4 ′) passing through said pinhole ( 7 ) and adapted to intercept said light ( 4 ′), said detector system ( 8 ) being susceptible of sensing light intensity distribution along at least a line.