| 摘要 |
<p>An objective of the present invention is to provide a glass pane which can be simply manufactured in a type of a thin plate glass having a very small curvature. To this end, a float glass pane (1) including glass (2) which can be chemically strengthened is provided (2). In this case, the glass pane (1) has a pane thickness in the range of 0.25 mm to 1.5 mm. The difference between virtual temperatures of two planes (10, 11) in the glass (2) existing on side surfaces (4, 5) of the float glass pane facing each other is less than 7 K, preferably, 5 K. The planes are formed by the side surfaces (4, 5) of the float glass pane (1), respectively, or extend in parallel to the side surfaces (4, 5) within a depth from the side surfaces (4, 5) to 50μm.</p> |
