Windshield
摘要
說明書
The total thickness of the interlayer 13 is not particularly specified, and is preferably 0.3 to 6.0 mm, more preferably 0.5 to 4.0 mm, and particularly preferably 0.6 to 2.0 mm. Also, the thickness of the core layer 131 is preferably 0.1 to 2.0 mm and more preferably 0.1 to 0.6 mm. Meanwhile, the thickness of each of the outer layers 132 is preferably 0.1 to 2.0 mm and more preferably 0.1 to 1.0 mm. Alternatively, it is also possible to fix the total thickness of the interlayer 13 and adjust the thickness of the core layer 131 without exceeding the fixed total thickness.
The thicknesses of the core layer 131 and the outer layers 132 can be measured as described below, for example. First, the cross section of a laminated glass is enlarged by a factor of 175 and displayed using a microscope (e.g., VH-5500 manufactured by Keyence Corporation). Then, the thicknesses of the core layer 131 and the outer layers 132 are visually identified and measured. At this time, in order to eliminate variations seen in visual identification, the measurement is performed five times, and average values are taken as the thicknesses of the core layer 131 and the outer layers 132. For example, the core layer and the outer layers 132 are identified in an enlarged photograph of a cross-section of a laminated glass, and the thicknesses of the identified core layer and outer layers 132 are measured.
