Abstract: A measuring device includes: a placement unit that places thereon a measurement object; an alignment microscope that observes an area including a measurement reference position of the measurement object placed on the placement unit; an capturing unit that captures an image of the area including the measurement reference position observed by the alignment microscope; a detection unit that detects the measurement reference position based on image data of the image captured by the capturing unit; a reference coordinate creating unit that creates a reference coordinate system based on the measurement reference position detected by the detection unit; a specifying unit that specifies a predetermined measurement position of the measurement object in the reference coordinate system created by the reference coordinate creating unit; and a measuring unit that measures at least one of surface roughness and surface shape of the predetermined measurement position of the measurement object specified by the specifying unit

Abstract: A measuring device includes: a placement unit that places thereon a measurement object; an alignment microscope that observes an area including a measurement reference position of the measurement object placed on the placement unit; an capturing unit that captures an image of the area including the measurement reference position observed by the alignment microscope; a detection unit that detects the measurement reference position based on image data of the image captured by the capturing unit; a reference coordinate creating unit that creates a reference coordinate system based on the measurement reference position detected by the detection unit; a specifying unit that specifies a predetermined measurement position of the measurement object in the reference coordinate system created by the reference coordinate creating unit; and a measuring unit that measures at least one of surface roughness and surface shape of the predetermined measurement position of the measurement object specified by the specifying unit

Abstract: There is disclosed an optical information record medium having an optical information record layer on a transparent substrate, in which the transparent substrate is made of a resin material mainly consisting of a polycarbonate resin that contains no more than 4 wt % of low molecular weight fractions having a weight average measured with respect to a polystyrene molecular weight of no more than 3500, in order to avoid a double refraction of an optical information record medium resulting in an improved signal to noise ratio and having superior thermal-transformation resistance and impact resistance.

Abstract: An optical information record medium is disclosed in which an optical information record layer is formed on a substrate made of a polycarbonate resin. The polycarbonate resin is purified to remove the residual chlorine in the resin enough to form the substrate containing no more than 1.0 ppm of chlorine ion. By reducing the residual chlorine ion in the polycarbonate substrate, anticorrosion characteristics of the optical information record medium are greatly improved.