A method of manufacturing a glass film using a roll-to-roll process in which a long glass film from a feed roll is wound on a winding roll through a plurality of steps, the plurality of steps comprising: a step of cutting the glass film along a feed direction at a predetermined position in a width direction; and a step of polishing cutting surfaces of glass films into which the glass film is cut.

A method of manufacturing a glass film using a roll-to-roll process in which a long glass film from a feed roll is wound on a winding roll through a plurality of steps, the plurality of steps comprising: a step of cutting the glass film along a feed direction at a predetermined position in a width direction; and a step of polishing cutting surfaces of glass films into which the glass film is cut.

A method for figuring an optical surface of an optical element to achieve a target profile for the optical surface includes: applying a removal process to an extended region of the optical surface extending along a first direction to remove material from the extended region of the optical surface; adjusting a position of the optical surface relative to the removal process along a second direction perpendicular to the first direction to remove material from additional extended regions of the optical surface extending along the first direction at each of different positions of the optical surface along the second direction; and repeating the applying of the removal process and the adjusting of the optical surface relative to the removal process for each of multiple rotational orientations of the optical surface about a third direction perpendicular to the first and second directions to achieve the target profile of the optical surface.

A method for figuring an optical surface of an optical element to achieve a target profile for the optical surface includes: applying a removal process to an extended region of the optical surface extending along a first direction to remove material from the extended region of the optical surface; adjusting a position of the optical surface relative to the removal process along a second direction perpendicular to the first direction to remove material from additional extended regions of the optical surface extending along the first direction at each of different positions of the optical surface along the second direction; and repeating the applying of the removal process and the adjusting of the optical surface relative to the removal process for each of multiple rotational orientations of the optical surface about a third direction perpendicular to the first and second directions to achieve the target profile of the optical surface.

Methods for strengthening edges of a laminated glass article comprising a glass core layer positioned between a first glass clad layer and a second glass clad layer are disclosed. The methods may comprise polishing the cut edges of the laminated glass article with a slurry of polishing media applied to the edges of the laminated glass article with brushes. An edge strength of the laminated glass article is greater than or equal to about 400 MPa after polishing.

Methods for strengthening edges of a laminated glass article comprising a glass core layer positioned between a first glass clad layer and a second glass clad layer are disclosed. The methods may comprise polishing the cut edges of the laminated glass article with a slurry of polishing media applied to the edges of the laminated glass article with brushes. An edge strength of the laminated glass article is greater than or equal to about 400 MPa after polishing.

A glass sheet polishing assembly includes a support assembly having a mounting assembly disposed thereon. The mounting assembly interconnects the glass sheet and the support assembly in an operative position during a polishing procedure. A carriage is movable relative to the support assembly in a first direction relative to the glass sheet. A polishing assembly is movable along a length of the carriage in a second transverse direction. A drive assembly is disposed and structured to define a movable driving relation with the polishing assembly and the carriage to define a continuous path of travel of the polishing assembly over a surface of the glass sheet and to successively move both the carriage and the positioning assembly relative to the support assembly in the first direction and continuously move the polishing assembly along said carriage in the second transverse direction.

A glass sheet polishing assembly includes a support assembly having a mounting assembly disposed thereon. The mounting assembly interconnects the glass sheet and the support assembly in an operative position during a polishing procedure. A carriage is movable relative to the support assembly in a first direction relative to the glass sheet. A polishing assembly is movable along a length of the carriage in a second transverse direction. A drive assembly is disposed and structured to define a movable driving relation with the polishing assembly and the carriage to define a continuous path of travel of the polishing assembly over a surface of the glass sheet and to successively move both the carriage and the positioning assembly relative to the support assembly in the first direction and continuously move the polishing assembly along said carriage in the second transverse direction.

A backlight unit suitable for use as an illuminator for liquid crystal display devices. The backlight unit comprises a glass light guide plate with a glass sheet including a first glass surface comprising a plurality of channels separated by peaks and arranged periodically therein, and a plurality of light emitting diodes arranged in an array along at least one edge surface of the glass sheet.

A glass polishing apparatus includes a jig that holds a glass structure. The glass polishing apparatus includes a first flat portion, a second flat portion opposite to the first flat portion, and a curved portion connecting the first flat portion to the second flat potion The jig and includes a first holding surface holding the first flat portion, a second holding surface disposed opposite to the first holding surface and holding the second flat portion, and a third holding surface connecting the first holding surface to the second holding surface and holding the curved portion. At least a portion of a roller unit having a cylindrical shape is inserted between the first flat portion and the second flat portion.