Patent ID: 6091444
Filing Date: 2000-07-18
Classification: B22D,G01J

Abstract:
A melt view camera, comprising:a water cooled camera enclosure coupled to a vacuum enclosure containing a melt;a CCD detector array contained within said camera enclosure;an electronic shutter coupled to said CCD array;an optical train for imaging said melt onto said CCD array, said optical train contained within said camera enclosure;a ninety degree turning element within said optical train;a pinhole in said camera enclosure, wherein said image of said melt passes through said pinhole, and wherein a gas passes through said pinhole;a camera mounting member coupled to said camera enclosure, wherein said mounting member includes at least two water passages, wherein water for said water cooled camera enclosure passes through said water passages, and wherein said mounting member includes a gas passage, said gas passing through said gas passage prior to passing through said pinhole; andan electrical cable, said electrical cable coupling said CCD array to a camera control unit, wherein said electrical cable passes through said gas passage.