| abstract |
The method of machining the glass structure can be performed with a fusion draw laminate including a core layer interposed between the first cladding layer and the second cladding layer. The core layer may be formed from a core glass composition having core photosensitivity, and the first cladding layer may be formed from a glass composition having photosensitivity different from the core photosensitivity, and second. The clad layer may be formed from a glass composition having photosensitivity different from the core photosensitivity. At least one of the core layer, the first cladding layer, and the second cladding layer is a photomachinable layer. The method comprises the steps of exposing selected regions of a photodrawable layer of a fusion draw laminate to ultraviolet radiation, heating the glass structure until the selected regions crystallize, and the photomachineable layer Selectively removing the crystallized material from. |