Advanced Glass Industries: Suppliers of Precision Machined and Precision Molded Optical Glass Blanks Rochester, New York, Advanced Glass Industries, machined blanks, molded blanks, lens blanks, precision glass machining, fused silica, corning 7980, fused quartz, optical glass, filter glass, low expansion, telescope mirror blanks, pressure windows, glass art Advanced Glass Industries is a precision manufacturer supplying the industry with precision machined and molded glass blanks for the optics industry and beyond. We work with a variety glasses including fused silica, fused quartz, optical glass, low expansion materials, filter glass and more.