1
Emilio Milana: Apparatus for testing surface roughness. Centro Ricerche Fiat S p A, Sughrue Mion Zinn Macpeak & Seas, September 22, 1981: US04290698 (30 worldwide citation)

Surface roughness is tested by an optical probing method which involves scanning a beam of light from a laser over a specimen workpiece via a semi-reflecting mirror and a cylindrical lens and detecting the specular component of the light reflected back through the lens and the semi-reflecting mirror ...


2
Emilio Milana: Process and device for inspecting and checking the internal surface of a hollow cylindrical workpiece which has undergone mechanical working. Fiat Auto S p A, Sughrue Mion Zinn Macpeak & Seas, April 3, 1984: US04440496 (25 worldwide citation)

A process for inspecting and checking the internal surface of a hollow cylindrical workpiece which has undergone mechanical working, particularly finishing by grinding or the like following which the internal surface has two sets of intersecting, helical score lines, consists in the examination of t ...


3
Emilio Milana: Method and apparatus for detecting surface defects in mechanical workpieces. Centro Ricerche Fiat S p A, Sughrue Mion Zinn Macpeak and Seas, May 15, 1984: US04448527 (14 worldwide citation)

The detection of surface defects in mechanical parts is effected by the analysis of diffracted light coming from these defects. The detection method includes the steps of illuminating the surface of the part to be examined with incoherent light and forming a flat image of the said surface in a trans ...


4
Emilio Milana, Giovanni Graziani: Opto-electronic measuring apparatus for checking linear dimensions. Marposs Societa Per Azioni, Dickstein Shapiro Morin & Oshinsky, November 24, 1998: US05841542 (13 worldwide citation)

An apparatus for checking linear dimensions of a workpiece (10) according to the shadow casting technique, including a bed (1), a first support structure (5, 6) sustained by the bed for supporting the workpiece, a second support structure (4), optical sources (22-25) coupled to the second support st ...


5
Emilio Milana, Franco Rasello: Method and apparatus for detecting surface defects in a workpiece. Centro Ricerche Fiat S p A, Sughrue Mion Zinn Macpeak and Seas, October 20, 1981: US04296333 (2 worldwide citation)

Quality control inspection of the surface of a workpiece is effected by scanning a coherent monochromatic light beam over the workpiece surface. Photomultipliers are used to generate two electrical signals respectively indicative of the magnitude of the specular component of light reflected from the ...