Method and apparatus for inspecting a glass surface
Abstract
Abstract A GLASS SURFACE IS INSPECTED FOR DEFECTS, ESPECIALLY SLEEKS, BY DIRECTING A BEAM OF LIGHT TO ILLUMINATE AN AREA OF THE GLASS SURFACE AND TO PRODUCE BY REFLECTION A BEAM OF LIGHT PASSING THROUGH A STATIONARY POSITON ABOVE THE GLASS SURFACE, AND TRAVERSING THE INCIDENT BEAM ABOUT AN AXIS DISPOSED AT THE POSTION BELWO THE GLASS SURFACE OF THE IMAGINARY MIRROR IMAGE OF THE SAID STATIONARY POSITION ABOVE THE GLASS AND EXTENDING PARALLEL TO THE GLASS SURFACE AND PERPENDICULAR TO THE INCIDENT BEAM, WHEREBY THE ILLUMINATED AREA MOVES OVER THE GLASS SURFACES WHILST THE MAIN REFLECTED BEAMCONTINUES TO PASS THROUGH SAID STATIONARY POSITION. SAID ILLUMINATED AREA IS THEN OBSERVED FROM A POSITION ADJACENT SAID STATIONARY POSITION, EITHER VISUALLY OR BY A PHOTOMULTIPLIER.
Inventors
- 👤 Harry Mills
- 👤 Leslie Woods
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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